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:
Jun. 13, 1978
Filed:
Aug. 23, 1977
Applicant:
Inventors:
Masayoshi Tatemoto, Ibaraki, JA;
Sinji Tamaru, Suita, JA;
Assignee:
Daikin Kogyo Co., Ltd., Osaka, JA;
Primary Examiner:
Int. Cl.
CPC ...
C08F / ;
U.S. Cl.
CPC ...
260 / ; 260884 ;
Abstract
Ion exchanger comprising a water-insoluble copolymer prepared by post-polymerizing at least one fluoroolefin monomer to a perfluorovinylacetic acid-vinylidene fluoride copolymer containing not less than 25% by mole of the perfluorovinylacetic acid unit in an aqueous solution of said copolymer in the presence of an organic or inorganic peroxide. The ion exchanger has excellent heat and chemical resistances and dimensional stability.