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US 4,789,689 AGranted
Amine catalyst for urethanes
AssigneeTexaco Inc.
InventorsRobert L. Zimmerman, Terry L. Renken
Life of this patent
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Abstract
Covers a method of producing a polyurethane by utilizing specific amine compounds of high activity as a catalyst in reacting an organic polyisocyanate with an organic polyester polyol or polyether polyol in the presence of said catalyst. Said amines fall within the following structural formula: ##STR1## where R.sub.1 and R are lower alkyl and x is 2-4.
Claims4
A method for producing a polyurethane foam which comprises reacting an organic polyisocyanate with a polyester polyol or polyether polyol in the presence of a catalytic amount of an amine of the following formula:
- ##STR8## where R.sub.1 and R are lower alkyl and x is 2-4.
Dependencies are inferred from the claim text.