Title:
COMPOSITION FOR VULCANIZATION OF FLUORORUBBER
Document Type and Number:
Japanese Patent JPH02209942
Kind Code:
A
Abstract:
PURPOSE:To provide the subject composition composed of a fluorinecontaining elastic copolymer, a hydroxide of a divalent metal, an oxide of a divalent metal, an aromatic polyhydroxy compound and a specified vulcanization accelerator and useful as a base material of a vulcanized rubber excellent in heat resistance, engine oil resistance, etc. CONSTITUTION:With (A) 100 pts.wt. fluorine-containing copolymer prepared by copolymerization of 10-70mol% vinylidene fluoride, 20-60mol% tetrafluoroethylene and 20-50mol% propylene, (B) 1-20 pts.wt. hydroxide and oxide of a divalent metal (e.g. magnesium), (C) 0.5-10 pts.wt. aromatic polyhydroxy compound (e.g. bisphenol A), (D) 0.01-20 pts.wt. vulcanization accelerator prepared by combination of two or more selected from inorganic and organic salts of 1,8-diaza-blcyclo(5,4,0)undecene-7, formula I, formula II and formula III (R1, R2, R3, R4 and R5 are 1-20C alkyl, aralkyl or aryl; X<-> is halide ion or OH<->) and, in addition thereto, a reinforcing agent, etc., are blended and the resultant mixture is uniformly kneaded at 30-80 deg.C for 10-60min, thus obtaining the objective composition.
Inventors:
WACHI HIROSHI
WASHIDA HIROSHI
WASHIDA HIROSHI
Application Number:
JP2964289A
Publication Date:
August 21, 1990
Filing Date:
February 10, 1989
Export Citation:
Assignee:
ASAHI GLASS CO LTD
International Classes:
C08L27/12; C08K3/22; C08K5/10; C08K5/13; C08K5/17; C08K5/19; C08K5/34; C08K5/3465; C08K5/49; C08K5/50; C08L23/14; C08L27/16; C08L27/18; (IPC1-7): C08L27/12
Attorney, Agent or Firm:
Akira Uchida (3 outside)
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