Primer compositions for pretreatment or fitting of coatings and processes for treating them
AssigneeChugoku Marine Paints, Ltd.
InventorsMinoru Kitayama, Harumi Morifusa, Katsumi Kondoh
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Abstract
A primer composition has an excellent bonding ability to materials such as polyethylene, polypropylene and synthetic rubbers and is easily bonded to functional coatings. A composite layer of a coating and the primer composition having a function of addition is formed on the surface of these materials by coating or the like. A primer composition is employed which is suitable for such uses wherein a polymer of an unsaturated dicarboxylic acid and a polyolefin or a chlorine denaturated product thereof is used as a main component and a chlorosulfonated polyethylene is applied to improve heat resistance.
Claims5
A liquid primer composition for pretreatment or fitting of coatings for polyolefins, natural rubbers and synthetic rubbers comprising:
- a first component graft polymer of an unsaturated dicarboxylic acid and an ethylene-vinyl acetate copolymer;
- a second component selected from the group consisting of a graft polymer of an unsaturated dicarboxylic acid and an ethylene-ethyl acrylate copolymer and a chlorinated product of a graft polymer of an unsaturated dicarboxylic acid and an ethylene-ethyl acrylate copolymer;
- and
- a third component solvent.
Dependencies are inferred from the claim text.