Process for preparing organic polyisocyanate compositions

Details Process for preparing organic polyisocyanate compositions Process for preparing organic polyisocyanate compositions

1981-08-17

1983-06-14

Torrence, Dolph H.

Chemistry of carbon compounds

Miscellaneous organic carbon compounds

C-metal

260239A, 544222, 560 24, 560115, 560159, C07C12724, C07C119042

Patent

active

043882455

ABSTRACT:
A process for preparing a modified aliphatic, alicyclic or araliphatic organic polyisocyanate composition which comprises heating an aliphatic, alicyclic or araliphatic organic polyisocyanate composition having at least two isocyanate groups in one molecule at a temperature of from about 100.degree. C. to about 200.degree. C. in the presence of an aliphatic, alicyclic or araliphatic organic diisocyanate monomer in an amount of at least about 1/2 of the weight of the organic polyisocyanate composition and removing unreacted aliphatic, alicyclic or araliphatic organic diisocyanate monomer.

REFERENCES:
patent: 3903126 (1975-09-01), Woerner et al.
patent: 3903127 (1975-09-01), Wagner et al.
patent: 4152350 (1979-05-01), Mohring et al.

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