Process for the preparation of silicone compounds
AssigneeDow Corning Toray Silicone Co., Ltd.
InventorsTadashi Okawa, Makoto Yoshitake, Tomohiro Iimura, Satoshi Onodera
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Abstract
A process for preparing a silicone compound, the process comprising reacting (A) a silicon compound having silicon-bonded alkoxy groups or silicon-bonded aryloxy groups and (B) a disiloxane in the presence of (C) a carboxylic acid, (D) an acid catalyst, and (E) a carboxylic anhydride, and a process for preparing a silicone compound, the process comprising reacting (F) a silicon compound having silicon-bonded acyloxy groups and (B) a disiloxane compound in the presence of (D) an acid catalyst, (E) a carboxylic anhydride, and (G) an alcohol.
Claims12
A process for preparing a silicone compound, the process comprising reacting (A) a silicon compound having silicon-bonded hydrolyzable groups selected from the group consisting of (i) alkoxy groups and (ii) silicon-bonded aryloxy groups and (B) a disiloxane compound having the formula:
- wherein R is an unsubstituted or substituted monovalent hydrocarbon group or a hydrogen atom, in the presence of (C) a carboxylic acid, (D) an acid catalyst, and (E) a carboxylic anhydride.
A process for preparing a silicone compound, the process comprising reacting (F) a silicon compound having silicon-bonded acyloxy groups and (B) a disiloxane compound having the formula:
- wherein R is an unsubstituted or substituted monovalent hydrocarbon group or a hydrogen atom, in the presence of (D) an acid catalyst, (E) a carboxylic anhydride, and (G) an alcohol.
Dependencies are inferred from the claim text.