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:
Apr. 11, 2006
Filed:
Mar. 21, 2003
Ching-tang Wang, Taipei, TW;
Mong-ching Lin, Kaohsiung, TW;
Chung-chin Feng, Kaohsiung, TW;
Kuo-kuang Cheng, Kaohsiung Hsien, TW;
Chin-yi Lin, Kaohsiung, TW;
Ching-Tang Wang, Taipei, TW;
Mong-Ching Lin, Kaohsiung, TW;
Chung-Chin Feng, Kaohsiung, TW;
Kuo-Kuang Cheng, Kaohsiung Hsien, TW;
Chin-Yi Lin, Kaohsiung, TW;
San Fang Chemical Industry Co., Ltd., Renwu Shiang, TW;
Abstract
A method for producing an artificial leather includes mixed spinning an island polymer and a sea polymer having a different dissolving property from that of the island polymer at a predetermined temperature, producing a non-woven substrate from the fiber obtained, immersing the non-woven substrate into a polymer, dissolving and removing the sea polymer in the non-woven substrate to obtain an artificial leather as a semi-finished product, and polishing the surface of the artificial leather to obtain an artificial leather having excellent dyeability and advanced fluff-like property. The ratio of melt flow index of the sea polymer to relative viscosity of the island polymer is about 20 to about 55, in which the relative viscosity of the island polymer is about 2.7 to about 3.5 and the weight percentage of the sea polymer relative to the sum of the sea polymer and the island polymer is about 30% to about 70%.