Surface treatment method and coating method of polyamide...

C - Chemistry – Metallurgy – 08 – J

Patent

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C08J 7/00 (2006.01) B05D 3/10 (2006.01) B05D 7/02 (2006.01) C08G 69/48 (2006.01) C08L 71/12 (2006.01)

Patent

CA 2081738

ABSTRACT OF THE DISCLOSURE A surface treatment method of a polyamide resin composition molded article is disclosed, comprising bringing the surface of a polyamide resin composition molded article into contact with water, said polyamide resin composition molded article comprising (C) 100 parts by weight of a resin composition comprising (A) from 10 to 80% by weight of a polyamide resin and (B) from 20 to 90% by weight of other thermoplastic resin; and (D) from 0 to 20 parts by weight of at least one modifier selected from a carboxylic acid having at least 2 carboxyl groups in the molecule or a derivative thereof, an amine containing at least 2 nitrogen atom in the molecular, urea or a derivative thereof, and a low-molecular weight polyamide. A coating method of a polyamide resin composition molded article is also disclosed, comprising, after bringing the surface of a resin composition molded article into contact with water, coating the surface with a coating composition. - 83 -

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