Tertiary amine catalyst mixtures useful in cellular polyurethane

Details Tertiary amine catalyst mixtures useful in cellular polyurethane Tertiary amine catalyst mixtures useful in cellular polyurethane

1980-09-29

1983-04-12

Waltz, Thomas A.

Compositions

Preservative agents

Anti-oxidants or chemical change inhibitants

521118, 521902, 521904, B01J 3102

Patent

active

043797571

ABSTRACT:
Tertiary amine catalyst mixtures comprising at least one hydroxyalkyl piperazine, preferably 2-hydroxyethyl piperazine or 1,4-di-(2-hydroxyethyl) piperazine, and at least one other tertiary amine for increasing the processability of hydroxyalkyl piperazine in controlling the water-isocyanate reaction rate to obtain optimum performance in cellular polyurethane foam formulations and/or enhancing the compatibility of hydroxyalkyl piperazine with other foaming ingredients in flexible polyester polyurethane foam formulation; and a process for producing cellular polyurethanes, such as flexible polyester or polyether polyurethane foam and high resilience polyether polyurethane foam, by effecting the reaction of an organic polyol reactant and an organic polyisocyanate reactant in the presence of a blowing agent and said tertiary amine catalyst mixture, the resulting cellular polyurethanes exhibiting very low residual amine odor.

REFERENCES:
patent: 3010963 (1961-11-01), Erner
patent: 3726816 (1973-04-01), Fabris et al.
patent: 3892687 (1975-07-01), Bechara et al.
patent: 3988267 (1976-10-01), Bechara et al.
patent: 3993652 (1976-11-01), Bechara et al.
patent: 4011223 (1977-03-01), Priest et al.
patent: 4012445 (1977-03-01), Priest et al.
patent: 4049931 (1977-09-01), Sandner et al.
patent: 4122038 (1978-10-01), Sandner et al.

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