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, 1989
Filed:
Oct. 19, 1988
Applicant:
Inventors:
Minoru Yokota, Kanagawa, JP;
Hiroshi Kawasaki, Kanagawa, JP;
Assignee:
Fuji Photo Film Co., Ltd., Kanagawa, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B01D / ;
U.S. Cl.
CPC ...
21050036 ; 21050041 ; 21050042 ; 264232 ;
Abstract
A process for rendering a porous membrane hydrophilic is disclosed, which comprises crosslinking at least one compound represented by the following general formula using an alkali at the fine pore surface of a porous material: General Formula (I)