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:
Mar. 21, 2006
Filed:
Sep. 06, 2005
Shun-ichi Kodama, Kanagawa, JP;
Isamu Kaneko, Kanagawa, JP;
Osamu Yokokoji, Kanagawa, JP;
Shinji Okada, Kanagawa, JP;
Yoko Takebe, Kanagawa, JP;
Yasuhide Kawaguchi, Kanagawa, JP;
Shun-ichi Kodama, Kanagawa, JP;
Isamu Kaneko, Kanagawa, JP;
Osamu Yokokoji, Kanagawa, JP;
Shinji Okada, Kanagawa, JP;
Yoko Takebe, Kanagawa, JP;
Yasuhide Kawaguchi, Kanagawa, JP;
Asahi Glass Company, Limited, Tokyo, JP;
Abstract
To provide a fluoropolymer which has a high concentration of functional groups to provide adequate characteristics of the functional groups and which brings about no decrease of Tg. A fluoropolymer having monomer units formed by cyclopolymerization of a functional group-containing fluorinated diene represented by the formula (1):CFR═CR—Q—CR═CHR  (1)wherein each of Rto Rwhich are independent of one another, represents a hydrogen atom, a fluorine atom, an alkyl group having at most 8 carbon atoms, or an alicyclic hydrocarbon group, and at least one of them is an alicyclic hydrocarbon group, provided that hydrogen atoms in the alkyl group or the alicyclic hydrocarbon group may be substituted by a fluorine atom, an alkyl group or a fluoroalkyl group; and Q represents a bivalent organic group having a blocked acidic group capable of developing an acidic group by an acid or a group capable of being converted into such a blocked acidic group.