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:
Dec. 13, 2016
Filed:
Nov. 12, 2014
Applicant:
Kuraray Co., Ltd., Kurashiki-shi, JP;
Inventors:
Ryokei Endo, Chiyoda-ku, JP;
Yosuke Washitake, Chiyoda-ku, JP;
Yukie Sugihara, Chiyoda-ku, JP;
Akihiro Uehata, Kurashiki, JP;
Assignee:
KURARAY CO., LTD., Kurashiki-shi, JP;
Primary Examiner:
Int. Cl.
CPC ...
D01D 1/00 (2006.01); D01D 7/00 (2006.01); D01F 1/02 (2006.01); D01F 1/10 (2006.01); D01D 5/08 (2006.01); D01F 6/74 (2006.01); D01F 6/66 (2006.01);
U.S. Cl.
CPC ...
D01D 5/08 (2013.01); D01F 6/66 (2013.01); D01F 6/74 (2013.01); D10B 2331/06 (2013.01); Y10T 428/2913 (2015.01);
Abstract
Provided are an amorphous polyetherimide fiber having not only a small single fiber fineness suitable for producing fabrics, and a fabric comprising the amorphous polyetherimide fiber. The fiber comprises an amorphous polyetherimide polymer having a molecular weight distribution (Mw/Mn) of less than 2.5, and having a shrinkage percentage under dry heat at 200° C. of 5% or less, and a single fiber fineness of 3.0 dtex or less. The fiber may have a tenacity at room temperature of 2.0 cN/dtex or greater.