Patent ID: 7727595

Claim:
A radiation or thermal curable composition comprising: (a) 20-300 parts by weight of a cycloaliphatic epoxide resin; (b) 100 parts by weight of a carbinol functional silicone resin containing the units: (R 1 3 SiO 1/2 ) a (R 2 2 SiO 2/2 ) b (R 3 SiO 3/2 ) c and (SiO 4/2 ) d , wherein R 1 and R 2 are each independently a hydrogen atom, an alkyl group having 1-8 carbon atoms, an aryl group, a carbinol group free of aryl groups having at least 3 carbon atoms, or an aryl-containing carbinol group having at least 6 carbon atoms; R 3 is an alkyl group having 1-8 carbon atoms or an aryl group; a has a value of less than or equal to 0.6; b has a value of zero or greater than zero; c has a value of greater than zero; d has a value of less than 0.5; the value of a+b+c+d=1; provided that when each R 2 is methyl, the value of b is less than 0.3; there being on average at least one carbinol group per carbinol functional silicone resin molecule; and greater than 10 percent by weight of the R 1 +R 2 +R 3 groups are phenyl groups or a mixture thereof with an anhydride functional silicone resin, provided there may not be more than 50 parts by weight of the anhydride functional silicone resin; and (c) 0.01-10 parts by weight of a thermal or photoactivated acid catalyst.