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:
Jan. 30, 2007
Filed:
Dec. 26, 2001
Applicants:
Kazuyoshi Hosaka, Chiba, JP;
Hideyuki Nawata, Chiba, JP;
Inventors:
Kazuyoshi Hosaka, Chiba, JP;
Hideyuki Nawata, Chiba, JP;
Assignee:
Nissan Chemical Industries, Ltd., Tokyo, JP;
Primary Examiner:
Int. Cl.
CPC ...
C08G 73/10 (2006.01); C08G 69/26 (2006.01);
U.S. Cl.
CPC ...
Abstract
A diamine compound represented by the formula (1): wherein Ris a trivalent organic group, each of Xand Xis a bivalent organic group, Xis an alkyl or fluoroalkyl group having from 1 to 22 carbon atoms, or a cyclic substituent selected from aromatic rings, aliphatic rings, heterocyclic rings and their substituted groups, and n is an integer of from 2 to 5. And, a polyimide precursor and a polyimide synthesized by using the diamine compound; and a treating agent for liquid crystal alignment containing the polyimide precursor and/or the polyimide.