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:
Jul. 25, 1978
Filed:
Jul. 15, 1976
Sadao Fujii, Kyoto, JP;
Hidehiko Maki, Kyoto, JP;
Toru Orisaka, Uji, JP;
Shoji Matsuda, Kyoto, JP;
Koichi Nishida, Kyoto, JP;
Tamio Ishiai, Wakayama, JP;
Tasaku Nishii, Wakayama, JP;
Yuichi Ueda, Osaka, JP;
Dynic Corporation, Kyoto, JP;
Kao Soap Co., Ltd., BOTH OF, JP;
Abstract
A process for producing an artificial leather having excellent touch, appearance and full-hand similar to that of natural leather and having further excellent softness and surface strength, which comprises coating a composition comprising an urethane prepolymer, a combination of catalysts and a foam stabilizer and including a plurality of extremely fine cells (foams) of an inert gas, onto a release paper or a layer of a surface treating agent coated on a release paper in a specified thickness; subjecting the resultant to a steam treatment under a specified atmosphere; laminating a base sheet onto the coating layer under pressure; subjecting the laminated product to a heat treatment at a specified temperature, and then peeling off the release paper, and optionally further treating the product with a surface treating agent.