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US 4,609,685 AGranted
Polyether polyols modified with amino alcohol-epoxy resin adducts
AssigneeTexaco Inc.
InventorsMichael Cuscurida, Harold G. Waddill
Life of this patent
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Abstract
Polyether polyols are modified by reaction with alkylene oxides and amino alcohol-epoxy resin adducts. The adducts are the reaction product of an epoxy resin and amino alcohol of the formula: ##STR1## wherein: x ranges from 1 to 4, y ranges from 1 to 40, and R is an alkyl of from 1 to 4 carbon atoms. These polyether polyols are used to prepare flexible polyurethane foams.
Claims20
A modified amino polyol for use in preparing flexible polyurethane foams, the modified polyol produced by reacting:
- (1) an initiator having an active hydrogen functionality of from 3 to 4,
- (2) one or more alkylene oxides,
- (3) an amino alcohol adduct in such a manner that the adduct is added internally along the length of the polyol chain, the amino alcohol adduct being the reaction product of:
- (a) an epoxy resin and
- (b) an amino alcohol of the formula:
- ##STR4## wherein:
- x ranges from about 1 to 4,
- y ranges from about 1 to 40, and
- R is an alkyl radical of from 1 to 4 carbon atoms.
6 more elements
A method for producing a flexible polyurethane foam which comprises:
- A. making a modified polyol by reacting:
- (1) an initiator having an active hydrogen functionality of from 3 to 4,
- (2) one or more alkylene oxides,
- (3) an amino alcohol adduct in such a manner that the adduct is added internally along the length of the polyol chain, the amino alcohol adduct being the reaction product of:
- (a) an epoxy resin and
- (b) an amino alcohol of the formula:
- ##STR5## wherein:
- x ranges from about 1 to 4,
- y ranges from about 1 to 40, and
- R is an alkyl radical of from 1 to 4 carbon atoms;
- and
- B. reacting said modified polyol with an organic polyisocyanate and one or more suitable foam catalysts in the presence of a blowing agent.
9 more elements
Dependencies are inferred from the claim text.