Patent ID: 7473752

Claim:
A method of producing an aromatic bisphenol, wherein said method comprises reacting a carbonyl compound with an aromatic hydroxy compound in the presence of a functionalized silicone resin catalyst; wherein said functionalized silicone resin catalyst comprises structural units of the formula: and at least one structural unit selected from the group consisting of: wherein the structural unit of formula (V), when present in the silicone resin without the structural unit of formula (IV), is present in an amount from 36.3 to 38.7 weight percent of overall weight of the silicone resin; and wherein “A” is spacer group that comprises a C 2 to C 50 alkylene group; “B” and “C” are spacer groups that independently comprise a C 2 to C 20 alkylene group; R 1 , R 3 , and R 6 independently comprise OH, alkyl groups, or alkoxy groups; R 7 comprises methoxy groups or ethoxy groups; and R 2 and R 4 independently comprise hydrogen, alkali metal, or alkyl groups.