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. 09, 2008
Filed:
Jul. 23, 2002
Tsuyoshi Yamasaki, Kurashiki, JP;
Hidekazu Andoh, Kurashiki, JP;
Yoshihiro Tamba, Kurashiki, JP;
Kuraray Co., Ltd., Kurashiki, JP;
Abstract
The leather-like sheet of the invention comprises a napped part of ultrafine fibers and a grainy part of nonporous elastic polymer randomly existing in the surface of a substrate prepared by infiltrating a porous polymer elastomer into a three-dimensionally intermingled nonwoven fabric of ultrafine fibers of not more than 0.5 dtex, and this is characterized in that the nonporous elastic polymer is infiltrated into the substrate to a depth thereof of from 5 to 20 μm from the surface of the substrate. The production method of the invention is for producing a nubuck-type leather-like sheet of good surface abrasion resistance. A grainy part of resin and ultrafine fibers and a part of the ultrafine fibers are mingled on the surface of the substrate, and the sheet has an elegant and three-dimensional appearance like natural leather.