Preparation of aliphatic isocyanates

Details Preparation of aliphatic isocyanates Preparation of aliphatic isocyanates

1981-10-02

1982-10-19

Torrence, Dolph H.

Chemistry of carbon compounds

Miscellaneous organic carbon compounds

C-metal

C07C11800

Patent

active

043549799

ABSTRACT:
Organic isocyanates are prepared by thermal decomposition of N,N'-disubstituted allophanic acid esters in an organic carbonate at from 150.degree. to 400.degree. C.
The isocyanates obtainable by this process are valuable starting materials for the preparation of crop protection agents, pesticides, dyes, synthetic resins, plastics, textile waterproofing agents, detergents, bleaching agents and adhesives.

REFERENCES:
patent: 3275669 (1966-09-01), Ulrich et al.
patent: 3372180 (1968-03-01), Ulrich
patent: 3392184 (1968-07-01), Ulrich et al.

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