Patent ID: 7045574
Filing Date: 2006-05-16
Classification: C08F,C08J,C08L,C09D

Abstract:
1. A primer composition for polyolefin material, the primer composition comprising: a component A comprising acid anhydride modified chlorinated polyolefin consisting of propylene-α-olefin including at least one kind of α-olefin whose carbon number is 2 or 4 or 5 or 6; a propylene content of 50 to 99 mol %; a chlorine content of 15 to 24% by weight; an acid anhydride content of 0.6 to 2.0% by weight; and a weight average molecular weight of 40000 to 120000; and a component B comprising acrylic modified alkyd resin in which alkyd resin polymer part (b1) whose iodine value is 80 or more and oil length is 35 to 70%, and acrylic resin polymer part (b2) whose glass-transition temperature is not less than 50° C., wherein the weight average molecular weight is 10000 to 100000, and a weight ratio of b1/b2 is 25/75 to 75/25; wherein a weight ratio of the component A and the component B is 80/20 to 20/80.