Catalyst for sprayable polyisocyanurate foam composition

Details Catalyst for sprayable polyisocyanurate foam composition Catalyst for sprayable polyisocyanurate foam composition

1974-07-09

1976-11-02

Cockeram, H.S.

Chemistry of carbon compounds

Miscellaneous organic carbon compounds

260 25AC, 427244, 427421, 428425, C08G 1814, C08G 1818, B32B 2740

Patent

active

039896510

ABSTRACT:
A novel process for the preparation of polyisocyanurate spray foams is disclosed. The catalyst combination comprises (i) N,N-dimethylcyclohexylamine, and (ii) a tetra (lower-alkyl) quaternary ammonium salt of an alkanoic acid. The use of this catalyst combination in the preparation of polyisocyanurate spray foams enables the systems to be sprayed under conditions of low ambient temperature upon cold substrates and to achieve good adhesion between the foam and substrate under such conditions. The polyisocyanurate foams produced using the novel catalyst combination of the invention are characterized by having high resistance to flame and heat distortion.

REFERENCES:
patent: 2779689 (1957-01-01), Reis
patent: 3487080 (1969-12-01), Matsui et al.
patent: 3745133 (1973-07-01), Communale et al.
patent: 3816339 (1974-06-01), Raden
patent: 3849349 (1974-11-01), Frisch et al.
patent: 3892687 (1975-07-01), Bechara et al.

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