Patent ID: 8093345

Claim:
A method of preparing a silicone resin, the method comprising: (i) reacting at least one halodisilane having the formula Z 3-a R 1 a Si—SiR 1 b Z 3-b and, optionally, at lease one halosilane having the formula R 1 b SiZ 4-b with at least one alcohol having the formula R 2 OH in the presence of an organic solvent to produce an alcoholysis product, wherein each R 1 is independently —H, hydrocarbyl, or substituted hydrocarbyl, R 2 is alkyl or cycloalkyl, Z is halo, a=0, 1, or 2, and b=0, 1, 2 or 3; (ii) reacting the alcoholysis product with water at a temperature of from 0 to 40° C. such that at least 85 mol % of silicon-bonded alkoxy groups in the alcoholysis product are hydrolyzed to produce a hydrolyzate; and (iii) heating the hydrolyzate to produce the resin.