Polyol preparation
AssigneeTexaco Development Corporation
InventorsGeorge P. Speranza, Robert L. Zimmerman, Thomas H. Austin
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Abstract
Covers a method of preparing polyether polyols useful in making a polyisocyanurate polymer by oxyalkylating an alcohol by the catalytic addition of an alkylene oxide to said alcohol in presence of a catalyst selected from the group consisting of carbamate salts, aminophenols, hexahydro-s-triazines and tetrahydrooxadiazines.
Claims10
A method of preparing a polyether polyol useful in making a polyisocyanurate polymer, which comprises the steps of oxyalkylating an alcohol having a functionality of two or three by the catalytic addition of an alkylene oxide to said alcohol in presence of an oxyalkylating catalyst selected from the group consisting of aminophenols, hexahydro-s-triazines and tetrahydrooxadiazines.
Dependencies are inferred from the claim text.