Title:
PRODUCTION OF FLUORINE-CONTAINING GRAFT COPOLYMER
Document Type and Number:
Japanese Patent JP3632330
Kind Code:
B2
Abstract:
PROBLEM TO BE SOLVED: To provide a method for producing a fluorine-containing graft copolymer which is a thermoplastic fluorine-containing copolymer elastomer, improved in compression set resistance characteristics and resultantly suitably usable as a molding material, etc., for a sealing material.
SOLUTION: At least two monomers which are a fluorinated monomer and propylene are copolymerized in the presence of (A) a saturated iodine-containing compound represented by the general formula RIn or an iodine-and bromine- containing compound represented by the general formula InBrmR [R is a fluorohydrocarbon group, a chlorofluorohydrocarbon group, a chlorohydrocarbon group or a hydorcarbon group; (n) and (m) are each 1 or 2] and (B) an unsaturated (fluoro)hydrocarbon containing iodine atom or bromine atom and at leas one monomer which is a fluorinated monomer and ethylene is further graft copolymerized with the resultant copolymer to produce a fluorine-containing graft copolymer.
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Inventors:
Takashi Enokida
Hideo Aoki
Yamada Kisei
Hideo Aoki
Yamada Kisei
Application Number:
JP29928896A
Publication Date:
March 23, 2005
Filing Date:
October 24, 1996
Export Citation:
Assignee:
UNIMATEC CO.,LTD.
International Classes:
C08F2/44; C08F255/02; C08F259/08; (IPC1-7): C08F255/02; C08F259/08
Domestic Patent References:
| JP5222126A | ||||
| JP4288305A | ||||
| JP63304009A | ||||
| JP52062391A |
Attorney, Agent or Firm:
Toshio Yoshida
Kazuko Yoshida
Kazuko Yoshida
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