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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.:

US 10363153 B1

PDFFull Text
Date of Patent:
Jul. 30, 2019

Filed:

Mar. 12, 2013

Superfine polyester fiber and tubular seamless fabric

Applicant:

Asahi Kasei Fibers Corporation, Osaka-shi, Osaka, JP;

Inventors:

Tetsuko Takahashi, Tokyo, JP;

Junichi Kojima, Tokyo, JP;

Keiichi Toyoda, Tokyo, JP;

Assignee:

ASAHI KASEI FIBERS CORPORATION, Osaka, JP;

Attorney:

Finnegan, Henderson, Farabow, Garrett & Dunner, LLP

Primary Examiner:

Camie S Thompson

Int. Cl.
CPC ...
A61F 2/89 (2013.01); A61F 2/95 (2013.01); A61L 31/06 (2006.01); D01F 6/62 (2006.01); D03D 15/00 (2006.01); A61L 27/18 (2006.01); A61L 27/50 (2006.01); A61L 31/14 (2006.01);
U.S. Cl.
CPC ...
A61F 2/89 (2013.01); A61F 2/95 (2013.01); A61L 27/18 (2013.01); A61L 27/50 (2013.01); A61L 27/507 (2013.01); A61L 31/06 (2013.01); A61L 31/14 (2013.01); D01F 6/62 (2013.01); D03D 15/0061 (2013.01); D10B 2331/04 (2013.01); D10B 2509/06 (2013.01); Y10T 428/1362 (2015.01); Y10T 428/249921 (2015.04); Y10T 428/2913 (2015.01);
Abstract

Provided is a superfine polyester fiber containing at least 98 wt % of a polyethylene terephthalate component, and characterized by fulfilling the following conditions: (1) the reduced viscosity (ηsp/c) is at least 0.80 dl/g; (2) the total fineness is 7-120 dtex, and the single filament fineness is no more than 0.5 dtex; and (3) the toughness parameter (X) indicated by formula (1) is at least 2.0, the tensile strength is at least 3.5 cN/dtex and the tensile elongation is at least 12%.=(tensile strength×√tensile elongation)/(total fineness×single filament fineness)  formula (1).

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Takahashi, Tetsuko. (2019). Superfine polyester fiber and tubular seamless fabric (U.S. Patent No. 10363153). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/10363153

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