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. 26, 2010
Filed:
Apr. 12, 2005
Applicants:
Masayuki Chokai, Iwakuni, JP;
Anton Peter DE Weijer, Iwakuni, JP;
Hiroaki Kuwahara, Iwakuni, JP;
Shunichi Matsumura, Iwakuni, JP;
Inventors:
Masayuki Chokai, Iwakuni, JP;
Anton Peter De Weijer, Iwakuni, JP;
Hiroaki Kuwahara, Iwakuni, JP;
Shunichi Matsumura, Iwakuni, JP;
Assignees:
Teijin Limited, Osaka, JP;
Teijin Techno Products Limited, Osaka, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C08G 65/38 (2006.01); C08G 63/00 (2006.01);
U.S. Cl.
CPC ...
Abstract
There are provided a rigid heterocyclic polymer comprising rigid recurring units such as units represented by the following formulae (a) and (b): wherein X is O, S or NH,a production process thereof, and fibers comprising the polymer.