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:
Dec. 02, 2014
Filed:
Mar. 09, 2010
Applicant:
Masato Nagao, Funabashi, JP;
Inventor:
Masato Nagao, Funabashi, JP;
Assignee:
Nissan Chemical Industries, Ltd., Tokyo, JP;
Primary Examiner:
Int. Cl.
CPC ...
C07C 211/00 (2006.01); C08G 73/10 (2006.01); C07C 229/18 (2006.01); C09D 179/08 (2006.01); C07C 271/22 (2006.01); G02F 1/1337 (2006.01);
U.S. Cl.
CPC ...
C08G 73/1078 (2013.01); G02F 1/133723 (2013.01); C07C 229/18 (2013.01); C09D 179/08 (2013.01); C07C 271/22 (2013.01);
Abstract
To provide a novel diamine which is useful as the starting material of a novel polyimide precursor or polyimide which can provide a liquid crystal alignment film having a low volume resistivity, a liquid crystal aligning agent containing these polymers, and a liquid crystal alignment film. The novel diamine is a compound represented by any one of the following formulae (A) to (C):