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US 4,786,435 AGranted
Method for making a storage stable blend of a long chain polyol and a short chain diol by incorporating a phenyl therein and the resulting blend
AssigneeAshland Oil, Inc.
InventorTimothy A. Tufts
Life of this patent
Estimating the term…
Abstract
Disclosed is a storage stable blend of a long chain polyol and a short chain diol wherein the diol is present in an amount whereby the diol and polyol form an incompatible blend. The blend is rendered storage stable by the addition of a compatibilizing amount of a phenol.
Claims12
A method for making a storage stable blend of a long chain polyol and a short chain diol which blend phase separates under storage, which comprises incorporating into said blend a stabilizing amount of a phenol wherein said phenol has the following formula:
- ##STR3## where R, R' and R" independently represent hydrogen, an alkyl group having from 1 to 20 carbon atoms, an aryl group having from 6 to 12 carbon atoms, an alkaryl group having from 7 to 20 carbon atoms, hydroxyl, hydroxyalkyl, or hydroxyaryl.
A storage stable blend which comprises:
- a long chain polyol, a short chain diol, and an effective amount of a phenol wherein said phenol has the following formula:
- ##STR4## where R, R', and R" independently represent hydrogen, an alkyl group having from 1 to 20 carbon atoms, an aryl group having from 6 to 12 carbon atoms, an alkaryl group having from 7 to 20 carbon atoms, hydroxyl, hydroxyalkyl, or hydroxyaryl;
- said diol present in an amount whereby the diol and polyol form an incompatible blend in the absence of said phenol.
Dependencies are inferred from the claim text.