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. 17, 1991
Filed:
Sep. 18, 1990
Applicant:
Inventor:
Masatoshi Abe, Kitaibaraki, JP;
Assignee:
Nippon Mektron Limited, Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C08F / ; C08F / ;
U.S. Cl.
CPC ...
525267 ; 525276 ; 525273 ;
Abstract
CF.sub.2 .dbd.CF.sub.2 and CF.sub.3 OCF.dbd.CF.sub.2 are subjected to copolymerization reaction in the presence of an organic compound containing at least one of iodine and bromine, and then CF.sub.2 .dbd.CF.sub.2 and CH.sub.2 .dbd.CF.sub.2 are supplied to the reaction system to continue the polymerization reaction. The thus obtained fluorine-containing block copolymer is of a low vinylidene fluoride content type and has a good solvent resistance.