Polyisocyanates of the diphenyl methane series

Details Polyisocyanates of the diphenyl methane series Polyisocyanates of the diphenyl methane series

1981-08-17

1986-09-23

Torrence, Dolph H.

Organic compounds -- part of the class 532-570 series

Organic compounds

Isocyanate esters

560347, C07C119048

Patent

active

046136878

ABSTRACT:
A polyisocyanate or mixture of polyisocyanates in which the main component(s) correspond to the formula: ##STR1## in which R.sub.1, R.sub.2, and R.sub.3 each represent hydrogen or a saturated alkyl group containing from 1 to 12 carbon atoms, provided that at least two of these radicals represent hydrogen; and

REFERENCES:
patent: 3255226 (1966-06-01), McShane, Jr.
patent: 3707486 (1972-12-01), Oertel et al.
patent: 3903124 (1975-09-01), Schnabel et al.
patent: 3933701 (1976-01-01), Puig et al.
patent: 3941822 (1976-03-01), Babiec, Jr. et al.
Siefken, Annalen der Chemie, vol. 562, p. 135 (1949).

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