C - Chemistry – Metallurgy – 08 – G
Patent
C - Chemistry, Metallurgy
08
G
402/134, 400/550
C08G 59/44 (2006.01) C08G 18/08 (2006.01) C08G 18/69 (2006.01) C08G 18/80 (2006.01) C08G 81/02 (2006.01) C09D 5/44 (2006.01) C25D 13/06 (2006.01)
Patent
CA 1158393
Abstract of the Disclosure The invention concerns a resin composition for electro- coating which comprises (I) a reaction product (G) of an epoxy compound (E), optionally an epoxy group-modifying agent (F) and a partially esterified and/or partially amidated product (D) which is obtained by partially ester- ifying and/or partially amidating an adduct (A) of a conjugated diene polymer with an (B-unsaturated dicar- boxylic acid or its anhydride with an alcoholic hydroxy group-containing compound (B) and/or a primary or secondary monoamine (C), respectively, and (II) a completely blocked organic polyisocyanate, the mixture of the reaction product (G) and the completely blocked organic polyisocyanate being neutralized, or a neutralized product of an adduct (H) of the reaction product (G) with a partially blocked organic polyisocyanate. The resin composition of the present invention is applicable to electrocoating, particularly cathodic electrocoating, and can give a coating film having excellent anticorrosion and adhesion to steel plates, and hence, is useful for electrocoating of steel products, particularly for electrocoating of automobiles.
343509
Hayatsu Kazuo
Hino Minoru
Oshima Takao
Yamamoto Michio
Yasui Seimei
Kirby Eades Gale Baker
Sumitomo Chemical Co. Ltd.
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