Curable compositon

摘要

Provided is a curable composition and its use. The curable composition may exhibit excellent processability and workability. The curable composition has excellent light extraction efficiency, crack resistance, hardness, thermal and shock resistance and an adhesive property after curing. The curable composition may provide a cured product exhibiting stable durability and reliability under severe conditions for a long time and having no whitening and surface stickiness.

主权项

1. A curable composition, comprising:
(A) an organopolysiloxane comprising an aliphatic unsaturated bond; and (B) an organopolysiloxane that is represented by an average composition formula of Formula 7, that comprises an alkenyl group and an epoxy group, and does not comprise an aryl group, and that is comprised in an amount of 0.5 to 10 parts by weight relative to 100 parts by weight of the total organopolysiloxanes in the composition:
(R3SiO1/2)l(R2SiO2/2)m(RSiO3/2)r(SiO4/2)s  [Formula 7] wherein R's are each independently a monovalent hydrocarbon group that is not an aryl group, or an epoxy group, with the proviso that at least one of R's is an alkenyl group and at least one of R's is an epoxy group; l, m, r and s are each 0 or a positive number, with the proviso that r and s are not simultaneously 0 and (r+s)/(1+m+r+s) is 0.2 to 0.7.