The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Oct. 22, 2013
Filed:
Oct. 23, 2007
Seiji Wada, Hiratsuka, JP;
Yuta Baba, Hiratsuka, JP;
Koki Chiga, Hiratsuka, JP;
Takashi Noguchi, Hiratsuka, JP;
Takato Adachi, Hiratsuka, JP;
Hiroyuki Onoyama, Hiratsuka, JP;
Hideo Sugai, Hiratsuka, JP;
Seiji Wada, Hiratsuka, JP;
Yuta Baba, Hiratsuka, JP;
Koki Chiga, Hiratsuka, JP;
Takashi Noguchi, Hiratsuka, JP;
Takato Adachi, Hiratsuka, JP;
Hiroyuki Onoyama, Hiratsuka, JP;
Hideo Sugai, Hiratsuka, JP;
Kansai Paint Co., Ltd., Hyogo, JP;
Abstract
The present invention provides an aqueous two-package type clear coating composition comprising: (A) an aqueous dispersion of a hydroxyl group- and acid group-containing acrylic resin having a hydroxyl value of 30 to 200 mg KOH/g, an acid value of 5 to 50 mg KOH/g, a weight average molecular weight of 3,000 to 30,000, and a glass transition temperature of −30 to +40° C. obtained by radical polymerization of 10 to 50 mass % of a secondary hydroxyl group-containing monomer (a) and 50 to 90 mass % of at least one other unsaturated monomer (b); and (B) a polyisocyanate curing agent obtained by mixing (c) a polyisocyanate compound and (d) a compound containing an anionic functional group, a polyoxyethylene group, and a hydrocarbon group, and a process for forming a multilayer topcoat film using the same.