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:
Dec. 17, 1991
Filed:
Oct. 09, 1990
Applicant:
Inventors:
Kunio Bizen, Kurashiki, JP;
Minoru Kashino, Yokohama, JP;
Tasuku Suzuki, Kurashiki, JP;
Ryuichi Hasegawa, Kuwana, JP;
Koji Hayashi, Kuwana, JP;
Assignees:
Mitsubishi Kasei Vinyl Company, Tokyo, JP;
Mitsubishi Kasei Corporation, Tokyo, JP;
Primary Examiner:
Int. Cl.
CPC ...
B29C / ;
U.S. Cl.
CPC ...
264 22 ; 264 26 ; 264 41 ; 264 80 ; 2642106 ; 2642107 ; 2642888 ; 2642902 ;
Abstract
A process for producing a porous film comprising polyolefin resin, a filler and an ester of dipentaerythritol having a ratio 3 to 70% residual OH groups.