CPC C08L 83/06 (2013.01) [B01J 23/42 (2013.01); C08G 77/14 (2013.01); C08G 77/70 (2013.01); C08J 3/075 (2013.01); C08L 83/12 (2013.01); C08G 77/20 (2013.01); C08J 2383/06 (2013.01); C08L 83/04 (2013.01)] | 4 Claims |
1. A one-pack curable silicone gel composition comprising:
(A) 100 parts by weight of a branched organopolysiloxane leaving the average compositional formula (1):
MαMViβDγTδ (1)
wherein M is a unit R13SiO(1/2),
MVi is a unit R12RSiO(1/2),
D is a unit R12SiO(2/2),
T is a unit R1SiO(3/2),
R is independently an alkenyl group, R1 is independently an unsubstituted or substituted monovalent hydrocarbon group free of aliphatic unsaturation, α is a positive number of 0.01 to 3,6, β is a positive number of 0.01 to 3.6, α+β is from 0.5 to 5, α/β is from 0.1 to 5, γ is a positive number of 10 to 1,600, δ is a positive number of 0.5 to 3, and (α+β)/δ is from 0.8 to 1.7,
(B) 0.1 to 50 parts by weight of an organohydrogenpolysiloxane having the general formula (2):
wherein R1 is as defined above, and z is an integer of 1 to 500,
(C) an effective amount of a platinum base catalyst, and
(D) a phosphite compound having the general formula (3):
wherein R2 is a C1-C10 monovalent aliphatic hydrocarbon group, and X is hydrogen or methyl, in such an amount as to provide more than 3 molecules to 15 molecules of the phosphite compound per platinum atom in component (C).
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