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:
Mar. 01, 2011
Filed:
Apr. 05, 2007
Yasuyuki Kataoka, Hiratsuka, JP;
Toshiaki Nagano, Yokohama, JP;
Minoru Ishikura, Odawara, JP;
Terutaka Takahashi, Hiratsuka, JP;
Hideo Sugai, Hiratsuka, JP;
Yasuyuki Kataoka, Hiratsuka, JP;
Toshiaki Nagano, Yokohama, JP;
Minoru Ishikura, Odawara, JP;
Terutaka Takahashi, Hiratsuka, JP;
Hideo Sugai, Hiratsuka, JP;
Kansai Paint Co., Ltd., Hyogo, JP;
Abstract
This invention provides a water-based primer composition comprising (A) an aqueous dispersion of modified polyolefin, which is prepared by dispersing a modified polyolefin (a) in an aqueous medium, the polyolefin (a) being produced by modifying an unsaturated carboxylic acid- or acid anhydride-modified polyolefin (i) having a melting point not higher than 120° C. and an weight-average molecular weight within a range of 30,000-200,000, further with a compound having polyoxyalkylene chain; (B) at least one kind of aqueous resin selected from aqueous urethane resin, aqueous acrylic resin and aqueous polyester resin; and (C) pigment; the solid weight ratio of the component (A)/component (B) being within a range of 20/80-85/15, and containing the component (C) in an amount within a range of 0.5-200 parts by weight per 100 parts by weight of the total solid resin content of the composition. Use of the water-based primer composition enables to form coating film excelling in water resistance, humidity resistance, gasohol resistance and the like.