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:
Mar. 28, 2017
Filed:
Oct. 20, 2014
Applicant:
Zeon Corporation, Tokyo, JP;
Inventors:
Shintaro Ikeda, Tokyo, JP;
Satoshi Yamada, Tokyo, JP;
Assignee:
ZEON CORPORATION, Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
D01F 6/30 (2006.01); D01D 5/08 (2006.01); D01D 5/10 (2006.01); C08F 232/08 (2006.01); B29B 9/12 (2006.01); B29B 9/16 (2006.01); C08J 3/12 (2006.01); D01F 6/04 (2006.01); B29B 9/06 (2006.01); B29B 7/38 (2006.01); B29K 23/00 (2006.01);
U.S. Cl.
CPC ...
D01F 6/30 (2013.01); B29B 9/12 (2013.01); B29B 9/16 (2013.01); C08F 232/08 (2013.01); C08J 3/12 (2013.01); D01D 5/08 (2013.01); D01F 6/04 (2013.01); B29B 7/38 (2013.01); B29B 9/06 (2013.01); B29K 2023/38 (2013.01);
Abstract
The invention is: a fiber produced by forming a fiber using pellets, and annealing the fiber at 150 to 220° C., the pellets being formed of a resin powder of a cycloolefin polymer, the resin powder having a loose bulk density of 0.3 to 0.6 g/cc when measured using 100 cc of the resin powder: a method for producing the fiber. The invention provides a method for producing a cycloolefin polymer fiber that exhibits good productivity and strength during spinning, and a low thermal shrinkage ratio.