| 摘要 |
An adhesion composition comprising: (A) a high molecular weight fluorosilicone polymer containing the unit having the formula (1): RfCH2CH2(CH3)SiO-(1) wherein Rf is a perfluoroalkyl group containing 1 to 8 carbon atoms, in an amount of 30 mol % or more in the molecule, and blocked with the vinyl group at the both ends, (B) a low molecular fluorosilicone polymer containing the unit having the formula (1) in an amount of 30 mol % or more in the molecule, and containing an average of 3 or more units having the following formula (2): CH2=CH(CH3)SiO-(2), (C) an organohydrogenpolysiloxane, (D) an organosilane or organopolysiloxane having at least one hydrogen atom or alkenyl group bonded to a silicon atom and having at least one of the oxirane group, dialkoxysilyl groups or trialkoxysilyl groups, and (E) a platinum catalyst. The cured product of the composition has good resistance to gasoline, and therefore useful for automobile parts.
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