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US 2008/0167437 A1Published application
Heat Activated Tertiary Amine Urethane Catalysts
AssigneeHuntsman Petrochemical Corporation
InventorsRobert A. Grigsby, Robert L. Zimmerman
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Abstract
This invention concerns a compound formed from a tertiary amine-carboxylic acid salt, where the carboxylic acid and tertiary amine are selected such that the catalyst salt is blocked at room temperature and becomes unblocked at an elevated temperature. The compound is useful as a heat activated urethane catalyst.
Claims14
A process for the manufacture of polyurethane, comprising:
- combining a diisocyanate, a polyol, and a catalyst, wherein the catalyst is a tertiary amine-carboxylic acid salt that is blocked at room temperature and becomes unblocked at an elevated temperature;
- and
- heating the resulting composition to unblock the salt to thereby polymerize the composition to form a polyurethane composition.
Dependencies are inferred from the claim text.