Isocyanurate products and polyurethanes therefrom

Details Isocyanurate products and polyurethanes therefrom Isocyanurate products and polyurethanes therefrom

1980-02-11

1981-05-05

Welsh, Maurice J.

Chemistry of carbon compounds

Miscellaneous organic carbon compounds

260 326N, 4273855, 4284231, 528 50, 528 52, 544193, C08L 7504

Patent

active

042657989

ABSTRACT:
Potassium salt of 2-pyrrolidinone is used as a catalyst to cyclotrimerize an organic diisocyanate, yielding a mixture of monomeric cyclotrimerized product (isocyanurate) and oligomers thereof, soluble in common organic solvents and vinyl monomers. The catalyst can be used to make one-shot isocyanurate-crosslinked polyurethanes. Prepolymers and moisture-curing coating compositions can also be prepared.

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Herbstman, J. Org. Chem., 30, 1965, pp. 1259-1260.
Beitchman, Rubber Age, Feb. 1966, pp. 65-72.
Reymore et al., J. Cellular Plastics, Nov./Dec. 1975, pp. 328-344.

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