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. 31, 2011
Filed:
Jul. 04, 2006
Applicants:
Hiroshi Uchida, Kawasaki, JP;
Ritsuko Azuma, Kawasaki, JP;
Inventors:
Hiroshi Uchida, Kawasaki, JP;
Ritsuko Azuma, Kawasaki, JP;
Assignee:
Showa Denko K.K., Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C08G 18/00 (2006.01); C08G 18/08 (2006.01); C08G 18/10 (2006.01); C08G 18/28 (2006.01); C08G 18/70 (2006.01); C08G 59/50 (2006.01); C08J 3/00 (2006.01); C08K 3/20 (2006.01); C08L 75/00 (2006.01); C09D 11/00 (2006.01);
U.S. Cl.
CPC ...
Abstract
Disclosed is a carboxyl group-containing polyurethane containing a structure derived from a polycarbonate diol (B), the polycarbonate diol (B) having: (i) a number-average molecular weight of 500 to 50,000; (ii) an alkylene group of 8 to 18 carbon atoms in its structure; and (iii) hydroxyl groups at both ends. The carboxyl group-containing polyurethane is suitable as materials of cured products that are excellent in adhesion with substrates, low warpage, flexibility, plating resistance, soldering heat resistance and long-term reliability.