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:
Sep. 19, 2017
Filed:
Jul. 11, 2014
Applicant:
The University of Tokyo, Tokyo, JP;
Inventors:
Tetsunori Higuchi, Tokyo, JP;
Mami Sakaguchi, Hakusan, JP;
Assignee:
The University of Tokyo, , JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
D01F 6/18 (2006.01); D01D 5/06 (2006.01); D01F 9/22 (2006.01); C08F 120/44 (2006.01); C08L 33/20 (2006.01); C08F 2/18 (2006.01); C08F 2/44 (2006.01); D01F 1/07 (2006.01); C08F 8/32 (2006.01); C08F 8/06 (2006.01); C08F 8/48 (2006.01);
U.S. Cl.
CPC ...
D01F 6/18 (2013.01); C08F 2/18 (2013.01); C08F 2/44 (2013.01); C08F 8/06 (2013.01); C08F 8/32 (2013.01); C08F 8/48 (2013.01); C08F 120/44 (2013.01); C08L 33/20 (2013.01); D01D 5/06 (2013.01); D01F 1/07 (2013.01); D01F 9/22 (2013.01); C08L 2201/02 (2013.01); C08L 2201/56 (2013.01); C08L 2203/12 (2013.01);
Abstract
A flame resistant polymer is obtained by reacting polyacrylonitrile with amine and nitro compounds, the polyacrylonitrile being polymerized by aqueous suspension polymerization using a redox initiator and containing an S component at an amount of 3,000 μg/g or less. A PAN-based polymer in which both yarn producing properties and flame resistance are improved can be realized.