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:
Aug. 01, 1989
Filed:
Aug. 08, 1988
Applicant:
Inventors:
Kazuyuki Hanada, Washinomiya, JP;
Iwao Misaizu, Ageo, JP;
Masashi Kashimura, Tokyo, JP;
Tomoko Goto, Kawaguchi, JP;
Katsumi Kuriyama, Koshigaya, JP;
Assignees:
Dainichiseika Color & Chemicals Mfg. Co., Ltd., Tokyo, JP;
Ukima Colour & Chemicals Mfg. Co., Ltd., Tokyo, JP;
Primary Examiner:
Int. Cl.
CPC ...
C08G / ;
U.S. Cl.
CPC ...
521154 ; 521170 ; 524588 ; 524591 ; 524700 ; 524731 ;
Abstract
A polyurethane emulsion is composed of an organic solvent solution of a polyurethane resin containing silicone segments and/or fluorocarbon segments as backbones and/or side chains and water emulsified in the organic solvent solution. A sheet-like porous material having a porous layer of a polyurethane resin provided on a base material is produced by using the above polyurethane emulsion to form the porous layer.