| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a curable fluoropolyether-based rubber composition having excellent water repellency, oil repellency, solvent resistance, chemical resistance and weather resistance, also having excellent properties for preventing the fixing to a metal or the like, and suitably usable for a diaphragm, a valve material or the like; and to provide a rubber product including the cure product thereof. <P>SOLUTION: The curable fluoropolyether-based rubber composition comprises (A) 100 pts. wt. linear fluoropolyether compound having at least two alkenyl groups in the molecule and a perfluoroalkyl ether structure in the main chain, (B) 10-50 pts. wt. silica-based filler having the surface hydrophobized by dimethyldichlorosilane, 50-300 m<SP>2</SP>/g specific surface area and 30-80 g/L bulk density, (C) an organosilicon compound having at least two hydrogen atoms bonded to silicon atoms in the molecule, and (D) a hydrosilylation catalyst in a catalytic amount which is the effective amount for curing the component (A). <P>COPYRIGHT: (C)2004,JPO |
