Improving heat aging of grafted polyolefins using zinc...

Details Improving heat aging of grafted polyolefins using zinc... Improving heat aging of grafted polyolefins using zinc...

C - Chemistry, Metallurgy

08

K

C08K 5/378 (2006.01) C08K 5/3435 (2006.01) C08K 5/37 (2006.01) C08K 5/47 (2006.01) C08L 51/06 (2006.01)

Patent

CA 2269184

A combination of about 0.5% to about 5% of a zinc salt of 2-mercaptobenzimidazole, 2-mercaptotoluimidazole or 2-mercaptobenzothiazole and about 0.05% to about 0.5% of a hindered phenol compound, based on the total weight of the composition, is used to improve heat aging of graft copolymers having a backbone of a propylene polymer material and side chains of polymerized styrenic and/or acrylic monomers.

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