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. 03, 2018
Filed:
Jan. 05, 2017
Applicant:
Mitsui Chemicals, Inc., Tokyo, JP;
Inventors:
Tatsuya Yamashita, Ichihara, JP;
Toshihiko Nakagawa, Ichihara, JP;
Shinji Kiyono, Kimitsu, JP;
Aya Nakagawa, Sodegaura, JP;
Hirokazu Morita, Chiba, JP;
Shigeru Mio, Chiba, JP;
Satoshi Yamasaki, Chiba, JP;
Kazuki Sakata, Chiba, JP;
Assignee:
MITSUI CHEMICALS, INC., Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C08G 18/09 (2006.01); C07C 267/00 (2006.01); C07B 61/00 (2006.01); C08G 18/73 (2006.01); C08G 18/83 (2006.01); C08G 18/30 (2006.01); C08G 18/12 (2006.01); C08G 18/48 (2006.01);
U.S. Cl.
CPC ...
C08G 18/095 (2013.01); C08G 18/12 (2013.01); C08G 18/30 (2013.01); C08G 18/4862 (2013.01); C08G 18/73 (2013.01); C08G 18/833 (2013.01);
Abstract
A polycarbodiimide composition is a reaction product of polyisocyanate having a primary isocyanate group and alcohols, wherein in an infrared absorption spectrum, the intensity ratio (IR/IR) of absorbance IRat or near 2120 cmdue to stretching vibration of the carbodiimide group relative to absorbance IRat or near 1720 cmdue to stretching vibration of the uretonimine group and urethane group is 1.5 or more and 4.5 or less.