| 摘要 |
The invention provides a silicone gel composition comprising: (A) an organopolysiloxane represented by an average composition formula (1) shown below: RaR1bSiO(4-a-b)/2  (1) (wherein, R represents an alkenyl group, R1 represents a monovalent hydrocarbon group that contains no aliphatic unsaturated bonds, and a, b and a+b are numbers that satisfy specific numerical ranges), and containing at least one alkenyl group bonded to a silicon atom within each molecule, (B) a component composed of: (B-1) an organohydrogenpolysiloxane represented by an average composition formula (2) shown below: (HR22SiO1/2)c(R32SiO)d(R4SiO3/2)e  (2) (wherein, R2, R3 and R4 represent monovalent hydrocarbon groups that contain no aliphatic unsaturated bonds, and c, d and e are numbers that satisfy specific numerical ranges, provided that c+d+e=1), containing at least three hydrogen atoms bonded to silicon atoms within each molecule, and containing at least two (R4SiO3/2) units within each molecule, and (B-2) an organohydrogenpolysiloxane represented by an average composition formula (3) shown below: R5fHgSiO(4-f-g)/2  (3) (wherein, R5 represents a monovalent hydrocarbon group that contains no aliphatic unsaturated bonds, and f, g and f+g are numbers that satisfy specific numerical ranges), containing either one or two hydrogen atoms bonded to silicon atoms within each molecule, and containing either one or two hydrogen atoms bonded to silicon atoms at molecular chain terminals.
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