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:
Aug. 07, 2012
Filed:
Jan. 15, 2008
Takayuki Ito, Minami-ashigara, JP;
Toshimitsu Sakuma, Minami-ashigara, JP;
Masayuki Harada, Minami-ashigara, JP;
Takayuki Ito, Minami-ashigara, JP;
Toshimitsu Sakuma, Minami-ashigara, JP;
Masayuki Harada, Minami-ashigara, JP;
Fujifilm Corporation, Tokyo, JP;
Abstract
A method of producing a fluorine-containing polymer, containing conducting an addition polymerization of a fluorine-containing compound having 2 or more terminal fluorine-containing vinyl groups each directly bonded to an oxygen atom per molecule, and a compound having 2 or more groups represented by —XH, where X represents an oxygen atom or a sulfur atom; and a fluorine-containing polymer comprising a repeating unit represented by formula (i): wherein Rfrepresents a perfluoroalkylene group; each of Rfand Rfindependently represents a fluorine atom, a perfluoroalkyl group or a perfluoroalkoxy group; at least two among Rf, Rfand Rfmay bond to each other to form a ring structure; X represents an oxygen atom or a sulfur atom; and L represents a divalent organic group.