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US 4,065,482 AGranted
Siloxanediolate complexes and preparation thereof
AssigneeGeneral Electric Company
InventorTerry G. Selin
Life of this patent
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Abstract
Siloxanediolate/p-dioxane complexes and processes for preparing the complexes. Sodium or an amalgam thereof is reacted with arylsilicondiola in the presence of p-dioxane to form the complexes. Complexes are useful in preparing the corresponding aryl polysiloxanediols.
Claims1
The process for the preparation of an aryl polysiloxanediol having the general formula ##STR16## wherein R.sup.1 and R.sup.2 are aryl radicals which comprise:
- acidifying a siloxanediolate complex having the formula, ##STR17## with an acid having a hydrogen ion concentration of less than about 2 molar.
Dependencies are inferred from the claim text.