Coating composition having high solid content and method for forming multilayer coating film
AssigneeKansai Paint Co., Ltd.
InventorsDaisuke FURUYA, Narihito NAKANO
Life of this patent
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Abstract
A high-solid-content coating composition includes: (A) a hydroxy group-containing acrylic resin having a glass transition temperature (Tg) in a range of 20° C. to 70° C. and a weight average molecular weight in a range of 3,000 to 10,000; (B) a hydroxy group-containing polyester resin being a reaction product of a polyfunctional compound (b-1) having a carboxy group and a hydroxy group in total of three or more in one molecule, a monoepoxide compound (b-2) having a hydrocarbon group having 4 or more carbon atoms, and a caprolactone compound (b-3); and (C) a polyisocyanate compound, in which a solid content at the time of coating is 50 mass % or more.
Claims6
A high-solid-content coating composition, comprising:
- (A) a hydroxy group-containing acrylic resin having a glass transition temperature (Tg) in a range of 20° C. to 70° C. and a weight average molecular weight in a range of 3,000 to 10,000;
- (B) a hydroxy group-containing polyester resin being a reaction product of a polyfunctional compound (b-1) having a carboxy group and a hydroxy group in total of three or more in one molecule, a monoepoxide compound (b-2) having a hydrocarbon group having 4 or more carbon atoms, and a caprolactone compound (b-3);
- and
- (C) a polyisocyanate compound, wherein
- a solid content at the time of coating is 50 mass % or more.
Dependencies are inferred from the claim text.