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 7494697 B1

PDF
Full Text
Expired
Date of Patent:
Feb. 24, 2009

Filed:

May. 11, 2006
Applicants:

Lung-chuan Wang, Renwu Shiang, TW;

Chung-chih Feng, Sanmin, TW;

Kuo-kuang Cheng, Daliao Shiang, TW;

Ta-min Cheng, Qianzhen, TW;

Chih-yi Lin, Gushan, TW;

Kuan-hsiang Chang, Daliao Shiang, TW;

Gao-long Yang, Sanmin, TW;

Inventors:

Lung-Chuan Wang, Renwu Shiang, TW;

Chung-Chih Feng, Sanmin, TW;

Kuo-Kuang Cheng, Daliao Shiang, TW;

Ta-Min Cheng, Qianzhen, TW;

Chih-Yi Lin, Gushan, TW;

Kuan-Hsiang Chang, Daliao Shiang, TW;

Gao-Long Yang, Sanmin, TW;

Assignee:
Attorneys:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H05B 6/64 (2006.01); B05D 3/02 (2006.01); D01D 5/30 (2006.01);
U.S. Cl.
CPC ...
Abstract

There is provided a method for splitting a split type conjugate fiber. The method includes four steps. Firstly, there is provided a first polymer with crystallization of 40% to 95% and a second polymer with crystallization of 1% to 25%. Secondly, a conjugate fiber is made of the first and second polymers by conjugate spinning. Thirdly, the conjugate fiber is submerged in water so that the conjugate fiber contains water. Finally, the conjugate fiber is heated and split into fine fibers.


Find Patent Forward Citations

Wang, Lung-Chuan. (2009). Substrate of artificial leather including ultrafine fibers and methods for making the same (U.S. Patent No. 7494697). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/7494697

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