| 摘要 |
PROBLEM TO BE SOLVED: To provide an addition-curable silicone rubber composition that gives a hardened product (silicone rubber) that has low hardness, high extensibility, high tensile strength, and good rubber elasticity and has a rubber feeling with no tuck feel. SOLUTION: The addition-curable silicone rubber composition mainly comprises (A) an organopolysiloxane that includes alkenyl group, has an average polymerization degree of less than 1,500 and is liquid at room temperature, (B) an organopolysiloxane that is crude rubber-like at room temperature, liquid crude rubber-like at room temperature, (C) organohydrogen polysiloxane, (D) a fumed silica having a specific surface area of more than 150 m<SP>2</SP>/g according to the BET method, (E) an organopolysiloxane bearing no addition functional group and has an average polymerization degree of less than 300, and (F) an addition reaction catalyst, and can give a hardened product having a hardness of 10 to 25 according to the durometer A hardness scale under the hardening conditions at 120 to 230°C for from 3 seconds to 10 minutes. COPYRIGHT: (C)2007,JPO&INPIT
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