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:
Nov. 11, 2014
Filed:
Mar. 28, 2008
Jiro Tanaka, Okayama, JP;
Tsuyoshi Yamasaki, Okayama, JP;
Yoshiyuki Ando, Okayama, JP;
Norio Makiyama, Okayama, JP;
Kimio Nakayama, Kurashiki, JP;
Jiro Tanaka, Okayama, JP;
Tsuyoshi Yamasaki, Okayama, JP;
Yoshiyuki Ando, Okayama, JP;
Norio Makiyama, Okayama, JP;
Kimio Nakayama, Kurashiki, JP;
Kuraray Co., Ltd., Kurashiki-shi, JP;
Abstract
A (semi)grain-finished leather-like sheet composed of an entangled nonwoven fabric of three-dimensionally entangled fiber bundles containing microfine long fibers and an elastic polymer contained in the entangled nonwoven fabric. When dividing the (semi)grain-finished leather-like sheet to five layers with equal thickness, i.e., surface layer, substrate layer, substrate layer, substrate layerand back layer in this order along the thickness direction, part of the microfine long fibers forming the surface layer and/or the back layer are fuse-bonded to each other and the microfine long fibers forming the intermediate layer are not fuse-bonded. With such a fuse-bonding state of the microfine long fibers, the (semi)grain-finished leather-like sheet combines a low compression resistance and a dense feel each comparable to natural leathers, has a sufficient practical strength, and are excellent in properties which are required according to its use.