Urethane linked hydroxy aromatic isocyanates

Details Urethane linked hydroxy aromatic isocyanates Urethane linked hydroxy aromatic isocyanates

1987-01-13

1988-02-09

Welsh, Maurice J.

Synthetic resins or natural rubbers -- part of the class 520 ser

Synthetic resins

From reactant having at least one -n=c=x group as well as...

528 85, 560 24, 560 29, 560 30, 558418, C08G 1830

Patent

active

047242566

ABSTRACT:
This invention relates to urethane linked hydroxy aromatic isocyanates and to a process for producing such urethane linked hydroxy aromatic isocyanates. The compositions are formed by reacting one equivalent aromatic diisocyanate with one equivalent of an alkylene polyol under conditions such that only one of the isocyanate groups react with the hydroxyl group of the polyol. Conditions are controlled such that the urethane linked hydroxy aromatic isocyanates are formed. The resulting product is suited for producing a variety of elastomers including a one component polyurethane elastomer.

REFERENCES:
patent: 2969386 (1961-01-01), McElroy
patent: 3020249 (1962-02-01), Curtis
patent: 3023228 (1962-02-01), Wagner et al.
patent: 3076770 (1958-09-01), Saunders et al.
patent: 3218348 (1965-11-01), McElroy et al.
patent: 3285981 (1966-11-01), MacLean et al.

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