POLYONE CORPORATION Exhibit 31.1 CERTIFICATION I, Stephen D. Newlin Chairman, President and Chief Executive Officer February 13, 2014 POLYONE CORPORATION Exhibit 31.2 CERTIFICATION I, Bradley C. POLYONE CORPORATION Exhibit 32.2 CERTIFICATION PURSUANT TO 18 U.S.C.

POLYONE CORPORATION Exhibit 31.1 CERTIFICATION I, Robert M. Patterson President and Chief Executive Officer February 13, 2015 POLYONE CORPORATION Exhibit 31.2 CERTIFICATION I, Bradley C. POLYONE CORPORATION Exhibit 32.2 CERTIFICATION PURSUANT TO 18 U.S.C.

Exhibit Description 31.1 Certification of Robert M. POLYONE CORPORATION Exhibit 31.1 CERTIFICATION I, Robert M. POLYONE CORPORATION Exhibit 32.2 CERTIFICATION PURSUANT TO 18 U.S.C.

Seller warrants good and clear title in goods subject to the sale (“Product”) and that the Product conforms at the time of shipment to a Certificate of Analysis, a Certificate of Compliance, or a Product Specification Sheet, if any such document exists, and other specifications signed by Seller (“Specifications”).

Seller warrants good and clear title in goods subject to the sale (“Product”) and that the Product conforms at the time of shipment to a Certificate of Analysis, a Certificate of Compliance, or a Product Specification Sheet, if any such document exists, and other specifications signed by Seller (“Specifications”).

Garanzia Limitata Esclusiva Without prejudice to Section 3, Seller warrants good and clear title in goods subject to the sale (“Product”) and that the Product conforms at the time of shipment to a Certificate of Analysis, a Certificate of Compliance, or a Product Specification Sheet, if any such document exists, and other specifications signed by Seller (“Specifications”).

Seller warrants good and clear title in goods subject to the sale (“Product”) and that the Product conforms at the time of shipment to a Certificate of Analysis or a Certificate of Compliance or a Product Specification Sheet, if either such document exists, and other specifications signed by Seller (“Specifications”).

Seller warrants good and clear title in the Product and that the Product conforms at the time of shipment to Buyer a Certificate of Analysis, a Certificate of Compliance, or a Product Specification Sheet, if any such document exists, or in any other specifications either signed by Seller (“Specifications”).

Seller warrants good and clear title in goods subject to the sale (“Product”) and that the Product conforms at the time of shipment to a Certificate of Analysis, a Certificate of Compliance, or a Product Specification Sheet, if any such document exists, and other specifications signed by Seller (“Specifications”).

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