Process for preparing hydroxy-containing amine complexes which a

Details Process for preparing hydroxy-containing amine complexes which a Process for preparing hydroxy-containing amine complexes which a

1981-12-31

1983-09-13

Welsh, Maurice J.

Compositions

Preservative agents

Anti-oxidants or chemical change inhibitants

521118, C08G 1818

Patent

active

044041209

ABSTRACT:
Hydroxy-containing amine complexes useful as catalysts for the trimerization of isocyanates and the preparation of urethanes from alcohols and isocyanates, are prepared in good yield by reacting an amine with an epoxide in the presence of water and an aldehyde having no alpha protons, and then recovering the desired complex from the reaction mixture. Also provided are new rigid polyurethane cellular products having a high content of isocyanurate linkages, superior heat distortion temperatures and insulating properties which are obtained by reacting a polyol with a polyisocyanate in the presence of the aforementioned new amine complex catalysts.

REFERENCES:
patent: 2779689 (1957-01-01), Reis
patent: 2981700 (1961-04-01), Parker et al.
patent: 3297597 (1967-01-01), Edwards et al.
patent: 3892687 (1975-07-01), Bechara et al.

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