Process for the manufacture of polyisocyanurate foams

Details Process for the manufacture of polyisocyanurate foams Process for the manufacture of polyisocyanurate foams

1976-06-07

1978-01-03

Rzucidlo, Eugene C.

Chemistry of carbon compounds

Miscellaneous organic carbon compounds

260 25AB, 260 25AC, 260 25AN, 260 25AM, 260 775NC, C08G 1820

Patent

active

040665801

ABSTRACT:
A process for the manufacture of urethane group containing polyisocyanurate foams produced by mixing polyisocyanates and polyols and (if required) frothing agents, auxiliaries and additives in the presence of a co-catalyst system which consists of a 1,3,5-tris(N,N-dialkylaminoalkyl)-s-hexahydrotriazine and an organic mono- or polycarboxylic acid, a polyesterol with an acid number greater than 4 or a mono-ester of polycarboxylic acid.

REFERENCES:
patent: 3724288 (1973-04-01), Cobbs, Jr. et al.
patent: 3891579 (1975-06-01), Cenker et al.
patent: 3922238 (1975-11-01), Narayan et al.
patent: 3931065 (1976-01-01), Ashida et al.
patent: 3969288 (1976-07-01), Cenker et al.
patent: 3970600 (1976-07-01), Falkenstein et al.

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