A method for the preparation of a fluorinated terpolymer and a method for the preparation of a liquid-resistant hardened elastomer from the terpolymers thus prepared.

摘要

1524597 Fluoro-terpolymers MINNESOTA MINING & MFG CO 14 Sept 1976 [15 Sept 1975] 38055/76 Heading C3P A fluorinated terpolymer curable to a fluid resistant elastomer consists of 55-70 mol. per cent of vinylidene fluoride, 25-40 mol. per cent of hexafluoropropene and 1-8 mol. per cent of chlorotrifluoroethylene to a total of 100 mol. per cent. A suitable curable mixture comprises 100 parts by weight of the fluorinated terpolymer; 0À5-1 part of a quaternary phosphonium compound and 0À1-5 parts of at least one aromatic hydroxy compound.