Latent catalysts for the isocyanate polyaddition reaction

Details Latent catalysts for the isocyanate polyaddition reaction Latent catalysts for the isocyanate polyaddition reaction

1984-07-19

1985-06-04

Welsh, Maurice J.

Synthetic resins or natural rubbers -- part of the class 520 ser

Synthetic resins

Cellular products or processes of preparing a cellular...

528 51, 528 53, C08G 1814

Patent

active

045215456

ABSTRACT:
Compositions which are storage stable at room temperature are made from an organic polyisocyanate, a compound containing at least two isocyanate-reactive groups and a latent catalyst. The latent catalyst is formed from an amine and an alkylating ester of an acid of phosphorus. These compositions react to form isocyanate polyaddition products when exposed to a temperature of 60.degree. C. or higher. These compositions are useful in the production of adhesives, foamed and non-foamed plastics and coatings.

REFERENCES:
patent: 4257995 (1981-03-01), McLaughlin et al.
patent: 4331778 (1982-05-01), Sommerfeld et al.
Kunststoff-Handbuch, vol. III, by Vieweg-Hochtlen, Carl-Hanser Verlang, Munich, 1966, pp. 96-102.

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