Abstract A silicone gel composition, comprising as essential components (A) an organopolysiloxane comprising substantially 90 to 97 mol % of R(CH3)SiO units, 0.1 to 2.5 mol % of RSiO1.5 units, and 0.1 to 4.0 mol % of CH3R(CH2=CH)Si0.5 units, wherein R represents a group selected from the group consisting of a methyl group, a phenyl group, and a CF3CH2CH2- group, provided that the total of the phenyl groups and the CF3CH2CH2- groups out of the R groups amounts to 0.5 to 10 mol % in all the R groups, (B) a hydrogenpolysiloxane containing at least one silicon-bonded hydrogen atom per molecule in such an amount that the number of the silicon-bonded hydrogen atoms is 0.5 to 1.5 per vinyl group bonded to silicon atoms in the component (A), and (C) a platinum catalyst. From this composition, a silicone gel excellent damping properties, rapid curability, and low-temperature properties can be obtained.
A silicone gel composition which will be cured to form a gel, comprising as essential components: (A) 92 to 97 mol % of (CH 3 ) 2 SiO units, 3.0 to 5.0 mol % of (C 6 H 5 ) (CH 3 ) SiO units, 0.1 to 1.0 mol % of (CH 3 ) SiO 1 .5 units, 0.1 to 1.5 mol % of (CH 3 ) 2 (CH 2 ═CH)SiO 0 .5 units, and 0.5 to 4.0 mol % of (CH 3 ) 3 SiO 0 .5 units, (B) a hydrogenpolysiloxane containing at least one silicon-bonded hydrogen atom per molecule in such an amount that the number of the silicon-bonded hydrogen atoms is 0.5 to 1.5 per vinyl group bonded to silicon atoms in the component (A), and (C) a platinum catalyst.
Claim 2
Dependent Claim
133 words
A silicone gel composition which will be cured to form a gel, comprising as essential components: (A) 92 to 97 mol % of (CH 3 ) 2 SiO units, 3.0 to 5.0 mol % of (C 6 H 5 ) (CH 3 ) SiO units, 0.1 to 1.0 mol % of (CH 3 ) SiO 1 .5 units, 0.1 to 1.5 mol % of (CH 3 ) 2 (CH 2 ═CH)SiO 0 .5 units, and 0.5 to 4.0 mol % of (CH 3 ) 3 SiO 0 .5 units, (B) a hydrogenpolysiloxane containing at least one silicon-bonded hydrogen atom per molecule in such an amount that the number of the silicon-bonded hydrogen atoms is 0.5 to 1.5 per vinyl group bonded to silicon atoms in the component (A), and (C) a platinum catalyst.
Claim 3
Dependent Claim
25 words
A composition as claimed in claim 1, wherein 0.3 to 1.0 mol % of CH 3 SiO 1 .5 units are present in component (A).
Claim 4
Dependent Claim
40 words
A composition as claimed in claim 1, wherein the component (B), the hydrogenpolysiloxane, comprises at least one selected from the group consisting of ##STR5## wherein Me stands for a methyl group and n and m are each a positive integer.
Claim 5
Dependent Claim
13 words
A silicone gel obtained by curing a composition as claimed in claim 1.