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:
May. 08, 2012
Filed:
Feb. 15, 2007
Minoru Ishikura, Odawara, JP;
Toshiaki Nagano, Yokohama, JP;
Yasuyuki Kataoka, Hiratsuka, JP;
Terutaka Takahashi, Hiratsuka, JP;
Hideo Sugai, Hiratsuka, JP;
Minoru Ishikura, Odawara, JP;
Toshiaki Nagano, Yokohama, JP;
Yasuyuki Kataoka, Hiratsuka, JP;
Terutaka Takahashi, Hiratsuka, JP;
Hideo Sugai, Hiratsuka, JP;
Kansai Paint Co., Ltd., Hyogo-Ken, JP;
Abstract
This invention provides a water-based primer composition characterized by comprising an aqueous dispersion formed by dispersing unsaturated carboxylic acid- or acid anhydride-modified polyolefin (a) having a melting point of 50-120° C. and a weight-average molecular weight within a range of 30,000-200,000, and unsaturated carboxylic acid- or acid anhydride-modified polyolefin (b) having a melting point of 30-100° C. and a weight-average molecular weight within a range of 30,000-200,000, in an aqueous medium, the melting point of the modified polyolefin (a) being higher than that of the modified polyolefin (b) by at least 10° C.