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Avient Corp. – ‘10-K’ for 12/31/23 – ‘EX-101.SCH’

On:  Tuesday, 2/20/24, at 12:52pm ET   ·   For:  12/31/23   ·   Accession #:  1122976-24-19   ·   File #:  1-16091

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  As Of               Filer                 Filing    For·On·As Docs:Size

 2/20/24  Avient Corp.                      10-K       12/31/23  113:11M

Annual Report   —   Form 10-K   —   SEA’34

Filing Table of Contents

Document/Exhibit                   Description                      Pages   Size 

 1: 10-K        Annual Report                                       HTML   2.03M 
 2: EX-10.19    Material Contract                                   HTML     36K 
 3: EX-10.29    Material Contract                                   HTML    121K 
 4: EX-21.1     Subsidiaries List                                   HTML    107K 
 5: EX-23.1     Consent of Expert or Counsel                        HTML     35K 
10: EX-97.1     Clawback Policy re: Recovery of Erroneously         HTML     41K 
                Awarded Compensation                                             
 6: EX-31.1     Certification -- §302 - SOA'02                      HTML     34K 
 7: EX-31.2     Certification -- §302 - SOA'02                      HTML     34K 
 8: EX-32.1     Certification -- §906 - SOA'02                      HTML     32K 
 9: EX-32.2     Certification -- §906 - SOA'02                      HTML     32K 
16: R1          Cover Page                                          HTML     98K 
17: R2          Audit Information                                   HTML     36K 
18: R3          Consolidated Statements of Income                   HTML    153K 
19: R4          Consolidated Statements of Comprehensive Income     HTML     69K 
20: R5          Consolidated Balance Sheets                         HTML    155K 
21: R6          Consolidated Balance Sheets (Parenthetical)         HTML     39K 
22: R7          Consolidated Statements of Cash Flows               HTML    121K 
23: R8          Consolidated Statements of Shareholders' Equity     HTML    100K 
24: R9          Consolidated Statements of Shareholders' Equity     HTML     32K 
                (Parenthetical)                                                  
25: R10         DESCRIPTION Of BUSINESS AND SUMMARY OF SIGNIFICANT  HTML     89K 
                ACCOUNTING POLICIES                                              
26: R11         Business Combinations                               HTML     65K 
27: R12         Discontinued Operations                             HTML     47K 
28: R13         Goodwill and Intangible Assets                      HTML     77K 
29: R14         Employee Separation and Restructuring Costs         HTML     61K 
30: R15         Financing Arrangements                              HTML     83K 
31: R16         Leasing Arrangements                                HTML     52K 
32: R17         Inventories, Net                                    HTML     39K 
33: R18         Property, Net                                       HTML     42K 
34: R19         Other Balance Sheet Liabilities                     HTML     58K 
35: R20         Employee Benefit Plans                              HTML    219K 
36: R21         Commitments and Contingencies                       HTML     52K 
37: R22         Income Taxes                                        HTML    144K 
38: R23         Share-Based Compensation                            HTML     70K 
39: R24         Segment Information                                 HTML    109K 
40: R25         Derivatives and Hedging                             HTML     45K 
41: R26         DESCRIPTION Of BUSINESS AND SUMMARY OF SIGNIFICANT  HTML    113K 
                ACCOUNTING POLICIES (Policies)                                   
42: R27         DESCRIPTION Of BUSINESS AND SUMMARY OF SIGNIFICANT  HTML     61K 
                ACCOUNTING POLICIES (Tables)                                     
43: R28         Business Combinations (Tables)                      HTML     63K 
44: R29         Discontinued Operations (Tables)                    HTML     49K 
45: R30         Goodwill and Intangible Assets (Tables)             HTML    111K 
46: R31         Employee Separation and Restructuring Costs         HTML     62K 
                (Tables)                                                         
47: R32         Financing Arrangements (Tables)                     HTML     79K 
48: R33         Leasing Arrangements (Tables)                       HTML     51K 
49: R34         Inventories, Net (Tables)                           HTML     40K 
50: R35         Property, Net (Tables)                              HTML     41K 
51: R36         Other Balance Sheet Liabilities (Tables)            HTML     58K 
52: R37         Employee Benefit Plans (Tables)                     HTML    227K 
53: R38         Commitments and Contingencies (Tables)              HTML     43K 
54: R39         Income Taxes (Tables)                               HTML    142K 
55: R40         Share-Based Compensation (Tables)                   HTML     67K 
56: R41         Segment Information (Tables)                        HTML    101K 
57: R42         Derivatives and Hedging (Tables)                    HTML     37K 
58: R43         DESCRIPTION Of BUSINESS AND SUMMARY OF SIGNIFICANT  HTML     53K 
                ACCOUNTING POLICIES - Narrative (Details)                        
59: R44         DESCRIPTION Of BUSINESS AND SUMMARY OF SIGNIFICANT  HTML     66K 
                ACCOUNTING POLICIES - Schedule Of Accumulated                    
                Other Comprehensive Income (Loss) (Details)                      
60: R45         BUSINESS COMBINATIONS - Narrative (Details)         HTML     47K 
61: R46         BUSINESS COMBINATIONS - Schedule of Purchase Price  HTML    107K 
                Allocation (Details)                                             
62: R47         BUSINESS COMBINATIONS - Schedule of Pro Forma       HTML     36K 
                Information Sales and Income from Continuing                     
                Operations (Details)                                             
63: R48         DISCONTINUED OPERATIONS - Narrative (Details)       HTML     45K 
64: R49         DISCONTINUED OPERATIONS - Schedule of Discontinued  HTML     56K 
                Operations (Details)                                             
65: R50         GOODWILL AND INTANGIBLE ASSETS -Schedule of         HTML     45K 
                Goodwill and Changes in Carrying Amount of                       
                Goodwill by Operating Segment (Details)                          
66: R51         GOODWILL AND INTANGIBLE ASSETS - Schedule of        HTML     61K 
                Indefinite and Finite-Lived Intangible Assets                    
                (Details)                                                        
67: R52         GOODWILL AND INTANGIBLE ASSETS - Narrative          HTML     33K 
                (Details)                                                        
68: R53         GOODWILL AND INTANGIBLE ASSETS - Schedule of        HTML     42K 
                Future Amortization (Details)                                    
69: R54         EMPLOYEE SEPARATION AND RESTRUCTURING COSTS -       HTML     49K 
                Narrative (Details)                                              
70: R55         EMPLOYEE SEPARATION AND RESTRUCTURING COSTS -       HTML     48K 
                Schedule of Integration Restructuring (Details)                  
71: R56         EMPLOYEE SEPARATION AND RESTRUCTURING COSTS -       HTML     43K 
                Income Statement (Details)                                       
72: R57         FINANCING ARRANGEMENTS - Schedule of Components of  HTML     88K 
                Debt (Details)                                                   
73: R58         FINANCING ARRANGEMENTS - Narrative (Details)        HTML     80K 
74: R59         FINANCING ARRANGEMENTS - Schedule of Maturities of  HTML     50K 
                Long-term Debt (Details)                                         
75: R60         LEASING ARRANGEMENTS - Schedule of Lease Cost       HTML     38K 
                (Details)                                                        
76: R61         LEASING ARRANGEMENTS - Narrative (Details)          HTML     37K 
77: R62         LEASING ARRANGEMENTS - Schedule of Maturity of      HTML     49K 
                Lease Liabilities (Details)                                      
78: R63         INVENTORIES, NET - Schedule of Components of        HTML     40K 
                Inventories, Net (Details)                                       
79: R64         PROPERTY, NET - Schedule of Components of           HTML     45K 
                Property, Net (Details)                                          
80: R65         PROPERTY, NET - Narrative (Details)                 HTML     32K 
81: R66         OTHER BALANCE SHEET LIABILITIES - Schedule Of       HTML     85K 
                Components Of Other Liabilities (Details)                        
82: R67         EMPLOYEE BENEFIT PLANS - Schedule of Change in      HTML     79K 
                Benefit Obligation, Change in Plan Assets and                    
                Components of Funded Status (Details)                            
83: R68         EMPLOYEE BENEFIT PLANS - Schedule of Amounts        HTML     46K 
                Included In Consolidated Balance Sheets (Details)                
84: R69         EMPLOYEE BENEFIT PLANS - Schedule of Projected and  HTML     46K 
                Accumulated Benefit Obligations in Excess of Plan                
                Assets (Details)                                                 
85: R70         EMPLOYEE BENEFIT PLANS - Schedule of Weighted       HTML     46K 
                Average Assumptions Used to Determine Net Periodic               
                Benefit Cost and Benefit Obligation (Details)                    
86: R71         EMPLOYEE BENEFIT PLANS - Schedule of Components of  HTML     57K 
                Net Period Benefit Cost or Gain (Details)                        
87: R72         EMPLOYEE BENEFIT PLANS - Narrative (Details)        HTML     43K 
88: R73         EMPLOYEE BENEFIT PLANS - Schedule of Weighted       HTML     48K 
                Average Assumptions Used to Determine Net Periodic               
                Benefit Costs (Details)                                          
89: R74         EMPLOYEE BENEFIT PLANS - Schedule of Fair Values    HTML     82K 
                of Pension Plan Assets (Details)                                 
90: R75         EMPLOYEE BENEFIT PLANS - Schedule of Estimated      HTML     48K 
                Future Benefit Payments (Details)                                
91: R76         EMPLOYEE BENEFIT PLANS - Schedule of Contributions  HTML     32K 
                to the Retirement Savings Plan (Details)                         
92: R77         COMMITMENTS AND CONTINGENCIES- Narrative (Details)  HTML     45K 
93: R78         COMMITMENTS AND CONTINGENCIES - Schedule Of         HTML     41K 
                Changes In Environmental Accrued Liabilities                     
                (Details)                                                        
94: R79         INCOME TAXES - Schedule of Income (Loss) Before     HTML     40K 
                Income Taxes (Details)                                           
95: R80         INCOME TAXES - Schedule of Income Tax Expense       HTML     50K 
                (Details)                                                        
96: R81         INCOME TAXES - Schedule of Effective Income Tax     HTML     71K 
                Rate Reconciliation (Details)                                    
97: R82         INCOME TAXES - Narrative (Details)                  HTML     87K 
98: R83         INCOME TAXES - Schedule of Components of Deferred   HTML     78K 
                Tax Liabilities and Assets (Details)                             
99: R84         INCOME TAXES - Schedule of Changes in Unrecognized  HTML     46K 
                Tax Benefits (Details)                                           
100: R85         SHARE-BASED COMPENSATION - Narrative (Details)      HTML     82K  
101: R86         SHARE-BASED COMPENSATION- Schedule of Compensation  HTML     48K  
                Expense (Details)                                                
102: R87         SHARE-BASED COMPENSATION -Schedule of Assumptions   HTML     52K  
                Related to Grants (Details)                                      
103: R88         SHARE-BASED COMPENSATION - Schedule of Stock        HTML     71K  
                Appreciation Rights (Details)                                    
104: R89         SEGMENT INFORMATION - Narrative (Details)           HTML     32K  
105: R90         SEGMENT INFORMATION- Schedule of Segment            HTML     58K  
                Information (Details)                                            
106: R91         SEGMENT INFORMATION - Schedule of Revenue and       HTML     66K  
                Long-Lived Assets (Details)                                      
107: R92         DERIVATIVES AND HEDGING - Narrative (Details)       HTML     57K  
108: R93         DERIVATIVES AND HEDGING - Schedule of Fair Value    HTML     39K  
                of Derivatives (Details)                                         
110: XML         IDEA XML File -- Filing Summary                      XML    201K  
113: XML         XBRL Instance -- avnt-20231231_htm                   XML   2.84M  
109: EXCEL       IDEA Workbook of Financial Report Info              XLSX    196K  
12: EX-101.CAL  XBRL Calculations -- avnt-20231231_cal               XML    364K 
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14: EX-101.LAB  XBRL Labels -- avnt-20231231_lab                     XML   2.29M 
15: EX-101.PRE  XBRL Presentations -- avnt-20231231_pre              XML   1.39M 
11: EX-101.SCH  XBRL Schema -- avnt-20231231                         XSD    229K 
111: JSON        XBRL Instance as JSON Data -- MetaLinks              648±  1.00M  
112: ZIP         XBRL Zipped Folder -- 0001122976-24-000019-xbrl      Zip    527K  


‘EX-101.SCH’   —   XBRL Schema — avnt-20231231


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<link:definition> 9954472 - Disclosure - DESCRIPTION Of BUSINESS AND SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES (Tables) </link:definition>
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</link:roleType>
<link:roleType id="BUSINESSCOMBINATIONSTables" roleURI="http://www.avient.com/role/BUSINESSCOMBINATIONSTables">
<link:definition> 9954473 - Disclosure - BUSINESS COMBINATIONS (Tables) </link:definition>
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<link:usedOn> link:calculationLink </link:usedOn>
<link:usedOn> link:definitionLink </link:usedOn>
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<link:roleType id="DISCONTINUEDOPERATIONSTables" roleURI="http://www.avient.com/role/DISCONTINUEDOPERATIONSTables">
<link:definition> 9954474 - Disclosure - DISCONTINUED OPERATIONS (Tables) </link:definition>
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<link:usedOn> link:calculationLink </link:usedOn>
<link:usedOn> link:definitionLink </link:usedOn>
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<link:roleType id="GOODWILLANDINTANGIBLEASSETSTables" roleURI="http://www.avient.com/role/GOODWILLANDINTANGIBLEASSETSTables">
<link:definition> 9954475 - Disclosure - GOODWILL AND INTANGIBLE ASSETS (Tables) </link:definition>
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<link:usedOn> link:calculationLink </link:usedOn>
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<link:definition> 9954476 - Disclosure - EMPLOYEE SEPARATION AND RESTRUCTURING COSTS (Tables) </link:definition>
<link:usedOn> link:presentationLink </link:usedOn>
<link:usedOn> link:calculationLink </link:usedOn>
<link:usedOn> link:definitionLink </link:usedOn>
</link:roleType>
<link:roleType id="FINANCINGARRANGEMENTSTables" roleURI="http://www.avient.com/role/FINANCINGARRANGEMENTSTables">
<link:definition> 9954477 - Disclosure - FINANCING ARRANGEMENTS (Tables) </link:definition>
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<link:usedOn> link:calculationLink </link:usedOn>
<link:usedOn> link:definitionLink </link:usedOn>
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<link:roleType id="LEASINGARRANGEMENTSTables" roleURI="http://www.avient.com/role/LEASINGARRANGEMENTSTables">
<link:definition> 9954478 - Disclosure - LEASING ARRANGEMENTS (Tables) </link:definition>
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<link:usedOn> link:calculationLink </link:usedOn>
<link:usedOn> link:definitionLink </link:usedOn>
</link:roleType>
<link:roleType id="INVENTORIESNETTables" roleURI="http://www.avient.com/role/INVENTORIESNETTables">
<link:definition> 9954479 - Disclosure - INVENTORIES, NET (Tables) </link:definition>
<link:usedOn> link:presentationLink </link:usedOn>
<link:usedOn> link:calculationLink </link:usedOn>
<link:usedOn> link:definitionLink </link:usedOn>
</link:roleType>
<link:roleType id="PROPERTYNETTables" roleURI="http://www.avient.com/role/PROPERTYNETTables">
<link:definition> 9954480 - Disclosure - PROPERTY, NET (Tables) </link:definition>
<link:usedOn> link:presentationLink </link:usedOn>
<link:usedOn> link:calculationLink </link:usedOn>
<link:usedOn> link:definitionLink </link:usedOn>
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<link:roleType id="OTHERBALANCESHEETLIABILITIESTables" roleURI="http://www.avient.com/role/OTHERBALANCESHEETLIABILITIESTables">
<link:definition> 9954481 - Disclosure - OTHER BALANCE SHEET LIABILITIES (Tables) </link:definition>
<link:usedOn> link:presentationLink </link:usedOn>
<link:usedOn> link:calculationLink </link:usedOn>
<link:usedOn> link:definitionLink </link:usedOn>
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<link:roleType id="EMPLOYEEBENEFITPLANSTables" roleURI="http://www.avient.com/role/EMPLOYEEBENEFITPLANSTables">
<link:definition> 9954482 - Disclosure - EMPLOYEE BENEFIT PLANS (Tables) </link:definition>
<link:usedOn> link:presentationLink </link:usedOn>
<link:usedOn> link:calculationLink </link:usedOn>
<link:usedOn> link:definitionLink </link:usedOn>
</link:roleType>
<link:roleType id="COMMITMENTSANDCONTINGENCIESTables" roleURI="http://www.avient.com/role/COMMITMENTSANDCONTINGENCIESTables">
<link:definition> 9954483 - Disclosure - COMMITMENTS AND CONTINGENCIES (Tables) </link:definition>
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<link:usedOn> link:calculationLink </link:usedOn>
<link:usedOn> link:definitionLink </link:usedOn>
</link:roleType>
<link:roleType id="INCOMETAXESTables" roleURI="http://www.avient.com/role/INCOMETAXESTables">
<link:definition> 9954484 - Disclosure - INCOME TAXES (Tables) </link:definition>
<link:usedOn> link:presentationLink </link:usedOn>
<link:usedOn> link:calculationLink </link:usedOn>
<link:usedOn> link:definitionLink </link:usedOn>
</link:roleType>
<link:roleType id="SHAREBASEDCOMPENSATIONTables" roleURI="http://www.avient.com/role/SHAREBASEDCOMPENSATIONTables">
<link:definition> 9954485 - Disclosure - SHARE-BASED COMPENSATION (Tables) </link:definition>
<link:usedOn> link:presentationLink </link:usedOn>
<link:usedOn> link:calculationLink </link:usedOn>
<link:usedOn> link:definitionLink </link:usedOn>
</link:roleType>
<link:roleType id="SEGMENTINFORMATIONTables" roleURI="http://www.avient.com/role/SEGMENTINFORMATIONTables">
<link:definition> 9954486 - Disclosure - SEGMENT INFORMATION (Tables) </link:definition>
<link:usedOn> link:presentationLink </link:usedOn>
<link:usedOn> link:calculationLink </link:usedOn>
<link:usedOn> link:definitionLink </link:usedOn>
</link:roleType>
<link:roleType id="DERIVATIVESANDHEDGINGTables" roleURI="http://www.avient.com/role/DERIVATIVESANDHEDGINGTables">
<link:definition> 9954487 - Disclosure - DERIVATIVES AND HEDGING (Tables) </link:definition>
<link:usedOn> link:presentationLink </link:usedOn>
<link:usedOn> link:calculationLink </link:usedOn>
<link:usedOn> link:definitionLink </link:usedOn>
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<link:definition> 9954488 - Disclosure - DESCRIPTION Of BUSINESS AND SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES - Narrative (Details) </link:definition>
<link:usedOn> link:presentationLink </link:usedOn>
<link:usedOn> link:calculationLink </link:usedOn>
<link:usedOn> link:definitionLink </link:usedOn>
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<link:roleType id="DESCRIPTIONOfBUSINESSANDSUMMARYOFSIGNIFICANTACCOUNTINGPOLICIESScheduleOfAccumulatedOtherComprehensiveIncomeLossDetails" roleURI="http://www.avient.com/role/DESCRIPTIONOfBUSINESSANDSUMMARYOFSIGNIFICANTACCOUNTINGPOLICIESScheduleOfAccumulatedOtherComprehensiveIncomeLossDetails">
<link:definition> 9954489 - Disclosure - DESCRIPTION Of BUSINESS AND SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES - Schedule Of Accumulated Other Comprehensive Income (Loss) (Details) </link:definition>
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<link:usedOn> link:calculationLink </link:usedOn>
<link:usedOn> link:definitionLink </link:usedOn>
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<link:roleType id="BUSINESSCOMBINATIONSNarrativeDetails" roleURI="http://www.avient.com/role/BUSINESSCOMBINATIONSNarrativeDetails">
<link:definition> 9954490 - Disclosure - BUSINESS COMBINATIONS - Narrative (Details) </link:definition>
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<link:usedOn> link:calculationLink </link:usedOn>
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<link:roleType id="BUSINESSCOMBINATIONSScheduleofPurchasePriceAllocationDetails" roleURI="http://www.avient.com/role/BUSINESSCOMBINATIONSScheduleofPurchasePriceAllocationDetails">
<link:definition> 9954491 - Disclosure - BUSINESS COMBINATIONS - Schedule of Purchase Price Allocation (Details) </link:definition>
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<link:usedOn> link:calculationLink </link:usedOn>
<link:usedOn> link:definitionLink </link:usedOn>
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<link:roleType id="BUSINESSCOMBINATIONSScheduleofProFormaInformationSalesandIncomefromContinuingOperationsDetails" roleURI="http://www.avient.com/role/BUSINESSCOMBINATIONSScheduleofProFormaInformationSalesandIncomefromContinuingOperationsDetails">
<link:definition> 9954492 - Disclosure - BUSINESS COMBINATIONS - Schedule of Pro Forma Information Sales and Income from Continuing Operations (Details) </link:definition>
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<link:usedOn> link:calculationLink </link:usedOn>
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<link:roleType id="DISCONTINUEDOPERATIONSNarrativeDetails" roleURI="http://www.avient.com/role/DISCONTINUEDOPERATIONSNarrativeDetails">
<link:definition> 9954493 - Disclosure - DISCONTINUED OPERATIONS - Narrative (Details) </link:definition>
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<link:usedOn> link:calculationLink </link:usedOn>
<link:usedOn> link:definitionLink </link:usedOn>
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<link:roleType id="DISCONTINUEDOPERATIONSScheduleofDiscontinuedOperationsDetails" roleURI="http://www.avient.com/role/DISCONTINUEDOPERATIONSScheduleofDiscontinuedOperationsDetails">
<link:definition> 9954494 - Disclosure - DISCONTINUED OPERATIONS - Schedule of Discontinued Operations (Details) </link:definition>
<link:usedOn> link:presentationLink </link:usedOn>
<link:usedOn> link:calculationLink </link:usedOn>
<link:usedOn> link:definitionLink </link:usedOn>
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<link:definition> 9954495 - Disclosure - GOODWILL AND INTANGIBLE ASSETS -Schedule of Goodwill and Changes in Carrying Amount of Goodwill by Operating Segment (Details) </link:definition>
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<link:usedOn> link:calculationLink </link:usedOn>
<link:usedOn> link:definitionLink </link:usedOn>
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<link:roleType id="GOODWILLANDINTANGIBLEASSETSScheduleofIndefiniteandFiniteLivedIntangibleAssetsDetails" roleURI="http://www.avient.com/role/GOODWILLANDINTANGIBLEASSETSScheduleofIndefiniteandFiniteLivedIntangibleAssetsDetails">
<link:definition> 9954496 - Disclosure - GOODWILL AND INTANGIBLE ASSETS - Schedule of Indefinite and Finite-Lived Intangible Assets (Details) </link:definition>
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<link:usedOn> link:calculationLink </link:usedOn>
<link:usedOn> link:definitionLink </link:usedOn>
</link:roleType>
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<link:definition> 9954496 - Disclosure - GOODWILL AND INTANGIBLE ASSETS - Schedule of Indefinite and Finite-Lived Intangible Assets (Details) </link:definition>
<link:usedOn> link:presentationLink </link:usedOn>
<link:usedOn> link:calculationLink </link:usedOn>
<link:usedOn> link:definitionLink </link:usedOn>
</link:roleType>
<link:roleType id="GOODWILLANDINTANGIBLEASSETSNarrativeDetails" roleURI="http://www.avient.com/role/GOODWILLANDINTANGIBLEASSETSNarrativeDetails">
<link:definition> 9954497 - Disclosure - GOODWILL AND INTANGIBLE ASSETS - Narrative (Details) </link:definition>
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<link:usedOn> link:calculationLink </link:usedOn>
<link:usedOn> link:definitionLink </link:usedOn>
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<link:definition> 9954498 - Disclosure - GOODWILL AND INTANGIBLE ASSETS - Schedule of Future Amortization (Details) </link:definition>
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<link:usedOn> link:calculationLink </link:usedOn>
<link:usedOn> link:definitionLink </link:usedOn>
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<link:roleType id="EMPLOYEESEPARATIONANDRESTRUCTURINGCOSTSNarrativeDetails" roleURI="http://www.avient.com/role/EMPLOYEESEPARATIONANDRESTRUCTURINGCOSTSNarrativeDetails">
<link:definition> 9954499 - Disclosure - EMPLOYEE SEPARATION AND RESTRUCTURING COSTS - Narrative (Details) </link:definition>
<link:usedOn> link:presentationLink </link:usedOn>
<link:usedOn> link:calculationLink </link:usedOn>
<link:usedOn> link:definitionLink </link:usedOn>
</link:roleType>
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<link:definition> 9954500 - Disclosure - EMPLOYEE SEPARATION AND RESTRUCTURING COSTS - Schedule of Integration Restructuring (Details) </link:definition>
<link:usedOn> link:presentationLink </link:usedOn>
<link:usedOn> link:calculationLink </link:usedOn>
<link:usedOn> link:definitionLink </link:usedOn>
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<link:definition> 9954501 - Disclosure - EMPLOYEE SEPARATION AND RESTRUCTURING COSTS - Income Statement (Details) </link:definition>
<link:usedOn> link:presentationLink </link:usedOn>
<link:usedOn> link:calculationLink </link:usedOn>
<link:usedOn> link:definitionLink </link:usedOn>
</link:roleType>
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<link:definition> 9954502 - Disclosure - FINANCING ARRANGEMENTS - Schedule of Components of Debt (Details) </link:definition>
<link:usedOn> link:presentationLink </link:usedOn>
<link:usedOn> link:calculationLink </link:usedOn>
<link:usedOn> link:definitionLink </link:usedOn>
</link:roleType>
<link:roleType id="FINANCINGARRANGEMENTSScheduleofComponentsofDebtDetails_1" roleURI="http://www.avient.com/role/FINANCINGARRANGEMENTSScheduleofComponentsofDebtDetails_1">
<link:definition> 9954502 - Disclosure - FINANCING ARRANGEMENTS - Schedule of Components of Debt (Details) </link:definition>
<link:usedOn> link:presentationLink </link:usedOn>
<link:usedOn> link:calculationLink </link:usedOn>
<link:usedOn> link:definitionLink </link:usedOn>
</link:roleType>
<link:roleType id="FINANCINGARRANGEMENTSNarrativeDetails" roleURI="http://www.avient.com/role/FINANCINGARRANGEMENTSNarrativeDetails">
<link:definition> 9954503 - Disclosure - FINANCING ARRANGEMENTS - Narrative (Details) </link:definition>
<link:usedOn> link:presentationLink </link:usedOn>
<link:usedOn> link:calculationLink </link:usedOn>
<link:usedOn> link:definitionLink </link:usedOn>
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<link:definition> 9954504 - Disclosure - FINANCING ARRANGEMENTS - Schedule of Maturities of Long-term Debt (Details) </link:definition>
<link:usedOn> link:presentationLink </link:usedOn>
<link:usedOn> link:calculationLink </link:usedOn>
<link:usedOn> link:definitionLink </link:usedOn>
</link:roleType>
<link:roleType id="LEASINGARRANGEMENTSScheduleofLeaseCostDetails" roleURI="http://www.avient.com/role/LEASINGARRANGEMENTSScheduleofLeaseCostDetails">
<link:definition> 9954505 - Disclosure - LEASING ARRANGEMENTS - Schedule of Lease Cost (Details) </link:definition>
<link:usedOn> link:presentationLink </link:usedOn>
<link:usedOn> link:calculationLink </link:usedOn>
<link:usedOn> link:definitionLink </link:usedOn>
</link:roleType>
<link:roleType id="LEASINGARRANGEMENTSNarrativeDetails" roleURI="http://www.avient.com/role/LEASINGARRANGEMENTSNarrativeDetails">
<link:definition> 9954506 - Disclosure - LEASING ARRANGEMENTS - Narrative (Details) </link:definition>
<link:usedOn> link:presentationLink </link:usedOn>
<link:usedOn> link:calculationLink </link:usedOn>
<link:usedOn> link:definitionLink </link:usedOn>
</link:roleType>
<link:roleType id="LEASINGARRANGEMENTSScheduleofMaturityofLeaseLiabilitiesDetails" roleURI="http://www.avient.com/role/LEASINGARRANGEMENTSScheduleofMaturityofLeaseLiabilitiesDetails">
<link:definition> 9954507 - Disclosure - LEASING ARRANGEMENTS - Schedule of Maturity of Lease Liabilities (Details) </link:definition>
<link:usedOn> link:presentationLink </link:usedOn>
<link:usedOn> link:calculationLink </link:usedOn>
<link:usedOn> link:definitionLink </link:usedOn>
</link:roleType>
<link:roleType id="LEASINGARRANGEMENTSScheduleofMaturityofLeaseLiabilitiesDetails_1" roleURI="http://www.avient.com/role/LEASINGARRANGEMENTSScheduleofMaturityofLeaseLiabilitiesDetails_1">
<link:definition> 9954507 - Disclosure - LEASING ARRANGEMENTS - Schedule of Maturity of Lease Liabilities (Details) </link:definition>
<link:usedOn> link:presentationLink </link:usedOn>
<link:usedOn> link:calculationLink </link:usedOn>
<link:usedOn> link:definitionLink </link:usedOn>
</link:roleType>
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<link:definition> 9954508 - Disclosure - INVENTORIES, NET - Schedule of Components of Inventories, Net (Details) </link:definition>
<link:usedOn> link:presentationLink </link:usedOn>
<link:usedOn> link:calculationLink </link:usedOn>
<link:usedOn> link:definitionLink </link:usedOn>
</link:roleType>
<link:roleType id="PROPERTYNETScheduleofComponentsofPropertyNetDetails" roleURI="http://www.avient.com/role/PROPERTYNETScheduleofComponentsofPropertyNetDetails">
<link:definition> 9954509 - Disclosure - PROPERTY, NET - Schedule of Components of Property, Net (Details) </link:definition>
<link:usedOn> link:presentationLink </link:usedOn>
<link:usedOn> link:calculationLink </link:usedOn>
<link:usedOn> link:definitionLink </link:usedOn>
</link:roleType>
<link:roleType id="PROPERTYNETNarrativeDetails" roleURI="http://www.avient.com/role/PROPERTYNETNarrativeDetails">
<link:definition> 9954510 - Disclosure - PROPERTY, NET - Narrative (Details) </link:definition>
<link:usedOn> link:presentationLink </link:usedOn>
<link:usedOn> link:calculationLink </link:usedOn>
<link:usedOn> link:definitionLink </link:usedOn>
</link:roleType>
<link:roleType id="OTHERBALANCESHEETLIABILITIESScheduleOfComponentsOfOtherLiabilitiesDetails" roleURI="http://www.avient.com/role/OTHERBALANCESHEETLIABILITIESScheduleOfComponentsOfOtherLiabilitiesDetails">
<link:definition> 9954511 - Disclosure - OTHER BALANCE SHEET LIABILITIES - Schedule Of Components Of Other Liabilities (Details) </link:definition>
<link:usedOn> link:presentationLink </link:usedOn>
<link:usedOn> link:calculationLink </link:usedOn>
<link:usedOn> link:definitionLink </link:usedOn>
</link:roleType>
<link:roleType id="EMPLOYEEBENEFITPLANSScheduleofChangeinBenefitObligationChangeinPlanAssetsandComponentsofFundedStatusDetails" roleURI="http://www.avient.com/role/EMPLOYEEBENEFITPLANSScheduleofChangeinBenefitObligationChangeinPlanAssetsandComponentsofFundedStatusDetails">
<link:definition> 9954512 - Disclosure - EMPLOYEE BENEFIT PLANS - Schedule of Change in Benefit Obligation, Change in Plan Assets and Components of Funded Status (Details) </link:definition>
<link:usedOn> link:presentationLink </link:usedOn>
<link:usedOn> link:calculationLink </link:usedOn>
<link:usedOn> link:definitionLink </link:usedOn>
</link:roleType>
<link:roleType id="EMPLOYEEBENEFITPLANSScheduleofAmountsIncludedInConsolidatedBalanceSheetsDetails" roleURI="http://www.avient.com/role/EMPLOYEEBENEFITPLANSScheduleofAmountsIncludedInConsolidatedBalanceSheetsDetails">
<link:definition> 9954513 - Disclosure - EMPLOYEE BENEFIT PLANS - Schedule of Amounts Included In Consolidated Balance Sheets (Details) </link:definition>
<link:usedOn> link:presentationLink </link:usedOn>
<link:usedOn> link:calculationLink </link:usedOn>
<link:usedOn> link:definitionLink </link:usedOn>
</link:roleType>
<link:roleType id="EMPLOYEEBENEFITPLANSScheduleofProjectedandAccumulatedBenefitObligationsinExcessofPlanAssetsDetails" roleURI="http://www.avient.com/role/EMPLOYEEBENEFITPLANSScheduleofProjectedandAccumulatedBenefitObligationsinExcessofPlanAssetsDetails">
<link:definition> 9954514 - Disclosure - EMPLOYEE BENEFIT PLANS - Schedule of Projected and Accumulated Benefit Obligations in Excess of Plan Assets (Details) </link:definition>
<link:usedOn> link:presentationLink </link:usedOn>
<link:usedOn> link:calculationLink </link:usedOn>
<link:usedOn> link:definitionLink </link:usedOn>
</link:roleType>
<link:roleType id="EMPLOYEEBENEFITPLANSScheduleofWeightedAverageAssumptionsUsedtoDetermineNetPeriodicBenefitCostandBenefitObligationDetails" roleURI="http://www.avient.com/role/EMPLOYEEBENEFITPLANSScheduleofWeightedAverageAssumptionsUsedtoDetermineNetPeriodicBenefitCostandBenefitObligationDetails">
<link:definition> 9954515 - Disclosure - EMPLOYEE BENEFIT PLANS - Schedule of Weighted Average Assumptions Used to Determine Net Periodic Benefit Cost and Benefit Obligation (Details) </link:definition>
<link:usedOn> link:presentationLink </link:usedOn>
<link:usedOn> link:calculationLink </link:usedOn>
<link:usedOn> link:definitionLink </link:usedOn>
</link:roleType>
<link:roleType id="EMPLOYEEBENEFITPLANSScheduleofComponentsofNetPeriodBenefitCostorGainDetails" roleURI="http://www.avient.com/role/EMPLOYEEBENEFITPLANSScheduleofComponentsofNetPeriodBenefitCostorGainDetails">
<link:definition> 9954516 - Disclosure - EMPLOYEE BENEFIT PLANS - Schedule of Components of Net Period Benefit Cost or Gain (Details) </link:definition>
<link:usedOn> link:presentationLink </link:usedOn>
<link:usedOn> link:calculationLink </link:usedOn>
<link:usedOn> link:definitionLink </link:usedOn>
</link:roleType>
<link:roleType id="EMPLOYEEBENEFITPLANSNarrativeDetails" roleURI="http://www.avient.com/role/EMPLOYEEBENEFITPLANSNarrativeDetails">
<link:definition> 9954517 - Disclosure - EMPLOYEE BENEFIT PLANS - Narrative (Details) </link:definition>
<link:usedOn> link:presentationLink </link:usedOn>
<link:usedOn> link:calculationLink </link:usedOn>
<link:usedOn> link:definitionLink </link:usedOn>
</link:roleType>
<link:roleType id="EMPLOYEEBENEFITPLANSScheduleofWeightedAverageAssumptionsUsedtoDetermineNetPeriodicBenefitCostsDetails" roleURI="http://www.avient.com/role/EMPLOYEEBENEFITPLANSScheduleofWeightedAverageAssumptionsUsedtoDetermineNetPeriodicBenefitCostsDetails">
<link:definition> 9954518 - Disclosure - EMPLOYEE BENEFIT PLANS - Schedule of Weighted Average Assumptions Used to Determine Net Periodic Benefit Costs (Details) </link:definition>
<link:usedOn> link:presentationLink </link:usedOn>
<link:usedOn> link:calculationLink </link:usedOn>
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<xs:element id="avnt_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsContingentRightShares" abstract="false" name="ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsContingentRightShares" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="xbrli:sharesItemType"/>
<xs:element id="avnt_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsExercisedInPeriodWeightedAverageExercisePrice" abstract="false" name="ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsExercisedInPeriodWeightedAverageExercisePrice" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:perShareItemType"/>
<xs:element id="avnt_AccruedEmploymentBenefitsNoncurrent" abstract="false" name="AccruedEmploymentBenefitsNoncurrent" nillable="true" xbrli:periodType="instant" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
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<xs:element id="avnt_PatentsTechnologyAndOtherMember" abstract="true" name="PatentsTechnologyAndOtherMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
<xs:element id="avnt_SharebasedCompensationArrangementbySharebasedPaymentAwardWeightedAverageAwardVestingPeriod" abstract="false" name="SharebasedCompensationArrangementbySharebasedPaymentAwardWeightedAverageAwardVestingPeriod" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="xbrli:durationItemType"/>
<xs:element id="avnt_BusinessCombinationProvisionalInformationInitialAccountingIncompleteAdjustmentDeferredTaxLiabilities" abstract="false" name="BusinessCombinationProvisionalInformationInitialAccountingIncompleteAdjustmentDeferredTaxLiabilities" nillable="true" xbrli:periodType="duration" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
<xs:element id="avnt_DefinedBenefitPlanCommonCollectiveTrustGlobalEquityMember" abstract="true" name="DefinedBenefitPlanCommonCollectiveTrustGlobalEquityMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
<xs:element id="avnt_DeferredIncomeExpensefromContinuingOperations" abstract="false" name="DeferredIncomeExpensefromContinuingOperations" nillable="true" xbrli:periodType="duration" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
<xs:element id="avnt_IntangibleAssetsCurrencyTranslation" abstract="false" name="IntangibleAssetsCurrencyTranslation" nillable="true" xbrli:periodType="instant" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
<xs:element id="avnt_ShareBasedCompensationArrangementByShareBasedPaymentAwardContractualTerm" abstract="false" name="ShareBasedCompensationArrangementByShareBasedPaymentAwardContractualTerm" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="xbrli:durationItemType"/>
<xs:element id="avnt_DeferredTaxAssetsTaxDeferredExpenseReservesAndAccrualsOperatingLeaseLiability" abstract="false" name="DeferredTaxAssetsTaxDeferredExpenseReservesAndAccrualsOperatingLeaseLiability" nillable="true" xbrli:periodType="instant" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
<xs:element id="avnt_UnrecognizedTaxBenefitsIncomeTaxExpenseImpactIfRecognized" abstract="false" name="UnrecognizedTaxBenefitsIncomeTaxExpenseImpactIfRecognized" nillable="true" xbrli:periodType="duration" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
<xs:element id="avnt_BusinessCombinationProvisionalInformationInitialAccountingIncompleteAdjustmentOtherCurrentAssets" abstract="false" name="BusinessCombinationProvisionalInformationInitialAccountingIncompleteAdjustmentOtherCurrentAssets" nillable="true" xbrli:periodType="duration" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
<xs:element id="avnt_DebtInstrumentUnamortizedDiscountPremiumandDebtIssuanceCostsNoncurrent" abstract="false" name="DebtInstrumentUnamortizedDiscountPremiumandDebtIssuanceCostsNoncurrent" nillable="true" xbrli:periodType="instant" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
<xs:element id="avnt_DerivativeInstrumentMaturityPeriodOneMember" abstract="true" name="DerivativeInstrumentMaturityPeriodOneMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
<xs:element id="avnt_DefinedContributionPlanEmployerMatchingContributions" abstract="false" name="DefinedContributionPlanEmployerMatchingContributions" nillable="true" xbrli:periodType="duration" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
<xs:element id="avnt_EffectiveIncomeTaxRateReconciliationNondeductibleExpenseForeignInterestPercent" abstract="false" name="EffectiveIncomeTaxRateReconciliationNondeductibleExpenseForeignInterestPercent" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:percentItemType"/>
<xs:element id="avnt_DeferredTaxLiabilitiesTaxableOutsideBasis" abstract="false" name="DeferredTaxLiabilitiesTaxableOutsideBasis" nillable="true" xbrli:periodType="instant" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
<xs:element id="avnt_ScheduleOfContributionToRetirementSavingsPlanTableTextBlock" abstract="false" name="ScheduleOfContributionToRetirementSavingsPlanTableTextBlock" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:textBlockItemType"/>
<xs:element id="avnt_AccountingPoliciesLineItems" abstract="true" name="AccountingPoliciesLineItems" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="xbrli:stringItemType"/>
<xs:element id="avnt_EffectiveIncomeTaxRateReconciliationTaxImpairmentsOfInvestmentsInAffiliates" abstract="false" name="EffectiveIncomeTaxRateReconciliationTaxImpairmentsOfInvestmentsInAffiliates" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:percentItemType"/>
<xs:element id="avnt_DerivativeInstrumentMaturityPeriodAxis" abstract="true" name="DerivativeInstrumentMaturityPeriodAxis" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrldt:dimensionItem" type="xbrli:stringItemType"/>
<xs:element id="avnt_DefinedBenefitPlanCommonCollectiveTrustDomesticEquityMember" abstract="true" name="DefinedBenefitPlanCommonCollectiveTrustDomesticEquityMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
<xs:element id="avnt_DebtInstrumentUnamortizedDiscountPremiumAndDebtIssuanceCostsCurrent" abstract="false" name="DebtInstrumentUnamortizedDiscountPremiumAndDebtIssuanceCostsCurrent" nillable="true" xbrli:periodType="instant" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
<xs:element id="avnt_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsVestedAndExercisableWeightedAverageExercisePrice" abstract="false" name="ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsVestedAndExercisableWeightedAverageExercisePrice" nillable="true" xbrli:periodType="instant" substitutionGroup="xbrli:item" type="dtr-types1:perShareItemType"/>
<xs:element id="avnt_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsForfeituresEstimatedPercentage" abstract="false" name="ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsForfeituresEstimatedPercentage" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:percentItemType"/>
<xs:element id="avnt_TaxesPayableNoncurrent" abstract="false" name="TaxesPayableNoncurrent" nillable="true" xbrli:periodType="instant" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
<xs:element id="avnt_DefinedBenefitPlanAssumptionsUsedCalculatingNetPeriodicBenefitCostYearHealthCareCostTrendRateReachesUltimateTrendRate" abstract="false" name="DefinedBenefitPlanAssumptionsUsedCalculatingNetPeriodicBenefitCostYearHealthCareCostTrendRateReachesUltimateTrendRate" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="xbrli:gYearItemType"/>
<xs:element id="avnt_RestructuringReservePaymentsUtilizationAndForeignCurrencyTranslation" abstract="false" name="RestructuringReservePaymentsUtilizationAndForeignCurrencyTranslation" nillable="true" xbrli:periodType="duration" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
<xs:element id="avnt_PatentsTechnologyAndOtherIntangibleAssetMember" abstract="true" name="PatentsTechnologyAndOtherIntangibleAssetMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
<xs:element id="avnt_A20242037OrIndefiniteMember" abstract="true" name="A20242037OrIndefiniteMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
<xs:element id="avnt_ShareBasedCompensationArrangementBySharebasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriodAppreciationCap" abstract="false" name="ShareBasedCompensationArrangementBySharebasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriodAppreciationCap" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:percentItemType"/>
<xs:element id="avnt_SeniorTermLoanDue2029Member" abstract="true" name="SeniorTermLoanDue2029Member" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
<xs:element id="avnt_DerivativeInstrumentMaturityPeriodDomain" abstract="true" name="DerivativeInstrumentMaturityPeriodDomain" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
<xs:element id="avnt_EffectiveIncomeTaxRateReconciliationNonDeductibleAcquisitionRelatedCostsPercent" abstract="false" name="EffectiveIncomeTaxRateReconciliationNonDeductibleAcquisitionRelatedCostsPercent" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:percentItemType"/>
<xs:element id="avnt_OtherComprehensiveIncomeLossNetInvestmentHedgeAndCashFlowHedgeGainLoss" abstract="false" name="OtherComprehensiveIncomeLossNetInvestmentHedgeAndCashFlowHedgeGainLoss" nillable="true" xbrli:periodType="duration" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
<xs:element id="avnt_AmortizationOfInventoryStepUp" abstract="false" name="AmortizationOfInventoryStepUp" nillable="true" xbrli:periodType="duration" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
<xs:element id="avnt_DefinedBenefitPlanBenefitObligationSalaryIncreaseDecrease" abstract="false" name="DefinedBenefitPlanBenefitObligationSalaryIncreaseDecrease" nillable="true" xbrli:periodType="duration" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
<xs:element id="avnt_SevenPointOneTwoFivePercentSeniorNotesDueTwoThousandThirtyMember" abstract="true" name="SevenPointOneTwoFivePercentSeniorNotesDueTwoThousandThirtyMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
<xs:element id="avnt_ScheduleOfSignificantAccountingPoliciesTable" abstract="true" name="ScheduleOfSignificantAccountingPoliciesTable" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrldt:hypercubeItem" type="xbrli:stringItemType"/>
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<xs:element id="avnt_EffectiveIncomeTaxRateReconciliationGlobalIntangibleLowTaxedIncomeAndFDIIPercent" abstract="false" name="EffectiveIncomeTaxRateReconciliationGlobalIntangibleLowTaxedIncomeAndFDIIPercent" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:percentItemType"/>
<xs:element id="avnt_SpecialtyEngineeredMaterialsMember" abstract="true" name="SpecialtyEngineeredMaterialsMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
<xs:element id="avnt_DefinedBenefitPlanGlobalEquityMember" abstract="true" name="DefinedBenefitPlanGlobalEquityMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
<xs:element id="avnt_UnrecognizedTaxBenefitsExpenseOther" abstract="false" name="UnrecognizedTaxBenefitsExpenseOther" nillable="true" xbrli:periodType="duration" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
<xs:element id="avnt_FiniteLivedIntangibleAssetsCurrencyTranslation" abstract="false" name="FiniteLivedIntangibleAssetsCurrencyTranslation" nillable="true" xbrli:periodType="instant" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
<xs:element id="avnt_DeferredTaxAssetsCapitalizedAndCarryforwardInterest" abstract="false" name="DeferredTaxAssetsCapitalizedAndCarryforwardInterest" nillable="true" xbrli:periodType="instant" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
<xs:element id="avnt_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsVestedAndExercisableAggregateIntrinsicValue" abstract="false" name="ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsVestedAndExercisableAggregateIntrinsicValue" nillable="true" xbrli:periodType="instant" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
<xs:element id="avnt_BusinessCombinationProvisionalInformationInitialAccountingIncompleteAdjustmentAccountsReceivable" abstract="false" name="BusinessCombinationProvisionalInformationInitialAccountingIncompleteAdjustmentAccountsReceivable" nillable="true" xbrli:periodType="duration" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
<xs:element id="avnt_BusinessCombinationProvisionalInformationInitialAccountingIncompleteAdjustmentNonControllingInterests" abstract="false" name="BusinessCombinationProvisionalInformationInitialAccountingIncompleteAdjustmentNonControllingInterests" nillable="true" xbrli:periodType="duration" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
<xs:element id="avnt_RevolvingCreditFacilityDue2026Member" abstract="true" name="RevolvingCreditFacilityDue2026Member" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
<xs:element id="avnt_CalvertCityMember" abstract="true" name="CalvertCityMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
</xs:schema>


30 Previous Filings that this Filing References

  As Of               Filer                 Filing    For·On·As Docs:Size             Issuer                      Filing Agent

 8/17/23  Avient Corp.                      8-K:1,2,9   8/16/23   11:1.5M                                   Donnelley … Solutions/FA
 5/03/23  Avient Corp.                      10-Q        3/31/23   63:7.3M
 3/29/23  Avient Corp.                      DEF 14A               12:14M
 2/22/23  Avient Corp.                      10-K       12/31/22  112:13M
11/02/22  Avient Corp.                      10-Q        9/30/22   63:7.2M
 9/01/22  Avient Corp.                      8-K:1,2,8,9 8/29/22   12:2.6M                                   Donnelley … Solutions/FA
 8/10/22  Avient Corp.                      8-K:1,2,9   8/10/22   11:1M                                     Donnelley … Solutions/FA
 6/24/22  Avient Corp.                      8-K:1,9     6/23/22   11:1.1M
 4/27/22  Avient Corp.                      10-Q        3/31/22   60:5.5M
 2/22/22  Avient Corp.                      10-K       12/31/21  112:13M
10/28/21  Avient Corp.                      10-Q        9/30/21   64:9.1M
 2/25/21  Avient Corp.                      10-K       12/31/20  116:14M
 5/15/20  Avient Corp.                      8-K:1,2,5,9 5/13/20   11:1.1M                                   Donnelley … Solutions/FA
 2/19/20  Avient Corp.                      10-K       12/31/19  112:18M
 7/25/19  Avient Corp.                      10-Q        6/30/19   58:7.1M
 5/06/19  Avient Corp.                      S-8         5/06/19    5:115K                                   Donnelley … Solutions/FA
11/13/18  Avient Corp.                      8-K:1,2,9  11/09/18    2:844K                                   Donnelley … Solutions/FA
 7/24/18  Avient Corp.                      10-Q        6/30/18   54:4.5M
10/25/17  Avient Corp.                      10-Q        9/30/17   53:4.5M
 4/27/17  Avient Corp.                      10-Q        3/31/17   57:6.5M
 3/31/17  Avient Corp.                      DEF 14A     5/11/17    1:1.9M                                   Donnelley … Solutions/FA
 8/05/16  Avient Corp.                      8-K:1,2,9   8/03/16    2:56K                                    Donnelley … Solutions/FA
 7/27/16  Avient Corp.                      10-Q        6/30/16   61:5M
 2/12/16  Avient Corp.                      10-K       12/31/15  115:16M
 4/03/15  Avient Corp.                      DEF 14A     5/14/15    1:2.5M                                   Donnelley … Solutions/FA
 7/22/14  Avient Corp.                      10-Q        6/30/14   71:8.3M                                   Montgomery Gwend… Ann/FA
 2/13/14  Avient Corp.                      10-K       12/31/13  128:19M                                    Montgomery Gwend… Ann/FA
 2/29/08  Avient Corp.                      10-K       12/31/07   18:2.1M                                   Bowne BCL/FA
 7/05/06  Avient Corp.                      8-K:1,9     6/30/06    3:83K                                    Bowne BCL/FA
 3/27/97  Geon Co.                          10-K405    12/31/96   30:1.7M                                   Bowne BCL/FA
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