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 6821599 B1

PDF
Full Text
Expired
Date of Patent:
Nov. 23, 2004

Filed:

Apr. 12, 2002
Applicant:
Inventors:

Minoru Kuroda, Hyogo, JP;

Shoichi Murata, Hyogo, JP;

Satoru Harada, Hyogo, JP;

Assignee:

Kaneka Corporation, Osaka, JP;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B32B 3/300 ; D02G 3/02 ; D02G 3/22 ; D02G 3/44 ; D01F 6/18 ;
U.S. Cl.
CPC ...
B32B 3/300 ; D02G 3/02 ; D02G 3/22 ; D02G 3/44 ; D01F 6/18 ;
Abstract

Porous acrylic fibers produced by a method comprising subjecting a spinning dope containing 0.3 to 20 parts by weight of poly(vinyl acetate) relative to 100 parts of an acrylic copolymer to a wet spinning to give fibers, crimping and cutting the fibers, subjecting the resultant fibers to a treatment by hot water at 90 to 100° C. for 30 to 120 minutes or by saturated steam at 90 to 130° C. for 10 to 90 minutes to thereby form porous fibers; and a pile fabric having pile portions which comprise the porous fibers in an amount of 3 wt % or more, and, in the pile fabric, respective single fibers are visible being separate and emphasized, and thus the pile fabric has an appearance being highly decorative and excellent in design characteristics.


Find Patent Forward Citations

Kuroda, Minoru. (2004). Porous acrylic fiber and fabric comprising the same, and method of producing the same (U.S. Patent No. 6821599). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/6821599

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