Photocurable fluoropolyether-based elastomer composition and bonding method thereof
AssigneeShin-Etsu Chemical Co., Ltd.
InventorsHiroyuki Yasuda, Mitsuo Muto, Kenichi Fukuda
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Abstract
Provided are a photocurable fluoropolyether-based elastomer composition having both a favorable preservation stability and fast curability, being bondable at a low temperature in a short period of time, and generating no air bubbles in the resin at the time of curing; and a bonding method thereof. The photocurable fluoropolyether-based elastomer composition contains: (A) a linear polyfluoro compound; (B) a fluorine-containing organohydrogenpolysiloxane; (C) a photoactive hydrosilylation reaction catalyst; and (D) a zeolite having an average primary particle size of not larger than 30 μm.
Claims10
A photocurable fluoropolyether-based elastomer composition comprising:
- (A) 100 parts by mass of a linear polyfluoro compound having at least two alkenyl groups per each molecule and a perfluoropolyether structure in a main chain;
- (B) a fluorine-containing organohydrogenpolysiloxane having at least two silicon atom-bonded hydrogen atoms per each molecule, the component (B) being in an amount at which the silicon atom-bonded hydrogen atoms in the component (B) are in an amount of 0.8 to 2.0 mol per 1 mol of the alkenyl groups in the component (A);
- (C) a photoactive hydrosilylation reaction catalyst in an amount of 0.1 to 500 ppm with respect to a mass of the component (A);
- and
- (D) 1 to 5 parts by mass of a zeolite having an average primary particle size 0.05 μm to 1.8 μm.
Dependencies are inferred from the claim text.