PROBLEM TO BE SOLVED: To provide a fluororubber composition crosslinkable with a polyol, simultaneously achieving improvement of preservation stability of dough, prevention of adhesion of the dough at kneading, short-time vulcanization, improvement of releasability from a mold at vulcanization and molding, prevention of staining by a metal ion, reduction of adhesiveness of a crosslinked product by improving crosslink density, or the like substantially without damaging normal properties, compression set-resisting characteristics, and preferable various properties originally possessed by the fluororubber, and free from a calcium compound which can be a causative material of HDD staining.;SOLUTION: The fluororubber composition crosslinkable with the polyol comprises 0.5-10 pts.wt. of a perfluoroalkane represented by the general formula: F(CF2)2nF (n is 5-30), a 1H-perfluoroalkane represented by the general formula: F(CF2)mH (m is 10-30) or a mixture thereof, 0.5-2 pts.wt. of basic magnesium-aluminum-hydroxycarbonate hydrate and 1-5 pts.wt. of an acid-receiving agent except the Ca compound based on 100 pts.wt. of the fluororubber crosslinkable by the polyol.;COPYRIGHT: (C)2007,JPO&INPIT
展开▼
