Abstract: Disclosed herein is a stabilizer mixture for modifying an olefin-based polymer, which comprises at least one organic phosphorus-containing antioxidant represented by a formula selected from the group consisting of formulae (1), (2), (3), (4), (5), (6), (7), and (8), as well as at least one sulfur-containing carboxylate salt represented by a formula selected from the group consisting of formulae (9), (10), (11), and (12). Also disclosed herein is a modified polymer composition prepared from an olefin-based polymer using the stabilizer mixture. The olefin-based polymer is selected from the group consisting of polyolefin, ethylene-vinyl acetate copolymer, and a combination thereof.

Abstract: Disclosed herein is a stabilizer mixture for modifying an olefin-based polymer, which comprises at least one organic phosphorus-containing antioxidant represented by a formula selected from the group consisting of formulae (1), (2), (3), (4), (5), (6), (7), and (8), as well as at least one sulfur-containing carboxylate salt represented by a formula selected from the group consisting of formulae (9), (10), (11), and (12). Also disclosed herein is a modified polymer composition prepared from an olefin-based polymer using the stabilizer mixture. The olefin-based polymer is selected from the group consisting of polyolefin, ethylene-vinyl acetate copolymer, and a combination thereof.

Abstract: Disclosed herein is a stabilizer mixture for modifying an olefin-based polymer, which comprises at least one organic phosphorus-containing antioxidant represented by a formula selected from the group consisting of formulae (1), (2), (3), (4), (5), (6), (7), and (8), as well as at least one sulfur-containing carboxylate salt represented by a formula selected from the group consisting of formulae (9), (10), (11), and (12). Also disclosed herein is a modified polymer composition prepared from an olefin-based polymer using the stabilizer mixture. The olefin-based polymer is selected from the group consisting of polyolefin, ethylene-vinyl acetate copolymer, and a combination thereof.

Abstract: A melamine free composite additive used in polyoxymethylene is provided. The composite additive includes an amine stabilizer and antioxidant. The composition of the amine stabilizer is 0.01 to 3 parts by weight per 100 parts by weight of the polyoxymethylene. The composition of the antioxidant is 0.05 to 3 parts by weight per 100 parts by weight of the polyoxymethylene. The composite additive enhances the light stability and thermal stability of the polyoxymethylene.