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:
Feb. 28, 1995
Filed:
Mar. 18, 1994
Yutaka Omura, Okayama, JP;
Kazundo Akamata, Okayama, JP;
Kuraray Co., Ltd., Kurashiki, JP;
Abstract
A highly flexible leather-like sheet material has a base layer of a fibrous aggregate containing a first polymer principally containing a first elastic polymer and, provided on the surface thereof, a coating layer of a second polymer principally comprising a second elastic polymer, said coating layer containing the two layers of a wet-formed porous intermediate coating layer integrated with the base layer and having a thickness of 10 to 40 .mu.m and having continuous pores with a maximum pore diameter of 1 to 30 .mu.m and a dry-formed porous surface coating layer having a thickness of 20 to 80 .mu.m and having continuous pores with a maximum pore diameter of substantially not more than 20 .mu.m and an average pore diameter of, preferably, 1 to 5 .mu.m obtained by extracting off fine particles, the two layers both containing a softening agent.