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:
Sep. 05, 1978
Filed:
Apr. 20, 1977
Applicant:
Inventors:
Eiichi Torikai, Yao, JP;
Youji Kawami, Kawachi-nagano, JP;
Shinichiro Kai, Ibaragi, JP;
Mutsusuke Namba, Settsu, JP;
Shuhei Simasaki, Settsu, JP;
Assignees:
Agency of Industrial Science and Technology, Tokyo, JP;
Daikin Kogyo Co., Ltd., Osaka, JP;
Primary Examiner:
Int. Cl.
CPC ...
C08J / ;
U.S. Cl.
CPC ...
521 53 ; 204296 ; 2105 / ; 521 55 ; 521145 ;
Abstract
A chemical-resistant diaphragm composed of a fluorine-containing polymer and potassium titanate and a method for the manufacture of said diaphragm by the steps of adding titanium oxide or titanic acid to a fluorine-containing polymer and heating the resultant mixture in the presence of potassium hydroxide.