Preparation of isocyanurate foams using alkali metal tertiaryami

Details Preparation of isocyanurate foams using alkali metal tertiaryami Preparation of isocyanurate foams using alkali metal tertiaryami

1975-06-11

1977-02-22

Rzucidlo, Eugene C.

Chemistry of carbon compounds

Miscellaneous organic carbon compounds

260 25AC, 260 25AW, 260 75NC, 260 75NB, 260 775AB, 260 775AC, 260 775NC, C08G 1822

Patent

active

040091309

ABSTRACT:
New catalysts for isocyanurate foams comprising alkali metal tertiaryamino dithiocarbamate salts. The novel foams are obtained by the polymerization of an excess of aromatic polyisocyanate, and a polyether or polyester polyol in the presence of a blowing agent and said alkali metal tertiaryamino dithiocarbamate salt useful as an isocyanurate group formation catalyst. The novel foams are useful in preparing rigid, flexible, semi-rigid or semi-flexible materials such as panels or slabs or sprayed foam surfaces.

REFERENCES:
patent: 3180846 (1965-04-01), Haggis
patent: 3715337 (1973-02-01), Allen et al.

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