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. 09, 2010
Filed:
Sep. 15, 2004
Applicants:
Yo Yamato, Himeji, JP;
Michio Tsuyumoto, Himeji, JP;
Inventors:
Yo Yamato, Himeji, JP;
Michio Tsuyumoto, Himeji, JP;
Assignee:
Daicel Chemical Industries, Ltd., Osaka, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B32B 3/26 (2006.01); B32B 3/00 (2006.01);
U.S. Cl.
CPC ...
Abstract
A porous film with chemical resistance of this invention includes a porous film base covered with a chemical-resistant polymeric compound and has a multiplicity of communicating micropores having an average pore size of 0.01 to 10 μm. The chemical-resistant polymeric compound can be, for example, any of phenolic resins, urea resins, melamine resins, benzoguanamine resins, polyimide resins, epoxy resins, benzoxazine resins, polypropylene resins, polyurethane resins, fluororesins, alkyd resins, cellulose acetate resins, phthalic resins, maleic resins, and silicone resins.