Patent ID: 8614282
Filing Date: 2013-12-24
Classification: C08G,C08L,H01L,Y10T

Abstract:
1. A low gas permeable silicone resin composition comprising (A) 20 to 95 parts by weight of an organopolysiloxane containing at least two alkenyl groups in a molecule, having the average compositional formula (1): wherein R R R a is a positive number of 0.3 to 0.9, b is a positive number of 0 to 0.5, c is a positive number of 0.05 to 0.7, and a+b+c=1.0, (B) 0.01 to 40 parts by weight of an organohydrogenpolysiloxane containing at least two silicon-bonded hydrogen atoms in a molecule, having the average compositional formula (2): wherein R 1 and R 2 are as defined above, d is a positive number of 0.6 to 1.5, e is a positive number of 0 to 0.5, f is a positive number of 0.4 to 1.0, and d+e+f=1.0 to 2.5, and (C) a catalytic amount of an addition reaction catalyst.