Title:
【発明の名称】含フッ素ブロック共重合体の製造法
Document Type and Number:
Japanese Patent JP3336958
Kind Code:
B2
Abstract:
A fluorine-containing copolymer having a solvent resistance and a cold resistance is produced by subjecting vinylidene fluoride and at least one of other fluorine-containing monomers to copolymerization reaction in the presence of a polyfluoropolyether having iodo groups at both terminals, represented by the following formula:I(R)pCF(CF3)O[CF2CF(CF3)O]mRf[OCF(CF3)CF2]nOCF(CF3)(R)pIwherein Rf: perfluoroalkylene group of C2-C6; R: alkylene group or polyfluoroalkylene group of C2-C8; these alkylene groups may contain an ether bond or may be an alkyleneamide-containing or phenylene diamide-containing group; m+n: 20 or more; and p: 0 or 1. The copolymerization reaction is carried out preferably in the presence of a bromine-containing or iodine-containing monomer compound.
Inventors:
Harumi Tatsu
Yasuyoshi Hisamatsu
Yasuyoshi Hisamatsu
Application Number:
JP16309198A
Publication Date:
October 21, 2002
Filing Date:
June 11, 1998
Export Citation:
Assignee:
Nippon Mektron Co., Ltd.
International Classes:
C08F293/00; C08F261/06; (IPC1-7): C08F293/00
Domestic Patent References:
| JP7316234A | ||||
| JP7324114A | ||||
| JP111527A | ||||
| JP11181032A |
Attorney, Agent or Firm:
Toshio Yoshida