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:
Jul. 17, 2018
Filed:
Oct. 22, 2014
Applicant:
Nissan Chemical Industries, Ltd., Chiyoda-ku, JP;
Inventors:
Assignee:
Nissan Chemical Industries, Ltd., Chiyoda-ku, JP;
Primary Examiner:
Int. Cl.
CPC ...
C07C 271/20 (2006.01); C07C 271/16 (2006.01); C07C 271/22 (2006.01); C08G 73/10 (2006.01); G03F 7/038 (2006.01);
U.S. Cl.
CPC ...
C07C 271/20 (2013.01); C07C 271/16 (2013.01); C07C 271/22 (2013.01); C08G 73/105 (2013.01); C08G 73/1071 (2013.01); C07C 2603/18 (2017.05); G03F 7/0387 (2013.01); H01L 2924/12044 (2013.01); Y10T 428/10 (2015.01); Y10T 428/1005 (2015.01);
Abstract
To provide a novel diamine, and a polyimide precursor and a polyimide using it. A diamine represented by the formula (1): wherein each of Xand Xwhich are independent of each other, is a single bond or the like; each of Xand Xwhich are independent of each other, is —CH— or the like; Xis a Calkylene or the like; each of Yand Ywhich are independent of each other, is a single bond or the like; R is a Clinear, branched or cyclic hydrocarbon group; and a is 0 or 1).