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. 08, 2015
Filed:
Jul. 16, 2010
Yuzo Komatsu, Settsu, JP;
Kenichi Katsukawa, Settsu, JP;
Haruhiko Mohri, Settsu, JP;
Takashi Kanemura, Settsu, JP;
Yuzo Komatsu, Settsu, JP;
Kenichi Katsukawa, Settsu, JP;
Haruhiko Mohri, Settsu, JP;
Takashi Kanemura, Settsu, JP;
DAIKIN INDUSTRIES, LTD., Osaka, JP;
Abstract
Provided is a process for the production of a fluorine-containing block copolymer, which suppresses the formation of a homopolymer as a by-product and which, regardless of whether the chain transfer constant of the iodine end is large or small, achieves nearly 100% conversion into a block copolymer. The process is characterized by reacting (A) a fluorine-containing polymer which has an iodine atom or a bromine atom at either or both terminals of the backbone chain and/or at a side-chain terminal with (M) a radical-polymerizable monomer in the presence of (C) a sulfur compound represented by general formula (2): (Y)HSO(wherein Yis a mono- or di-valent metal ion or an ammonium ion; and n is an integer of 0 to 2).