Manufacture of isocyanate-substituted isophtholayl chloride

Details Manufacture of isocyanate-substituted isophtholayl chloride Manufacture of isocyanate-substituted isophtholayl chloride

1992-03-16

1993-03-02

Dees, Jose G.

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

Organic compounds

Isocyanate esters

427244, 560338, C07C26310

Patent

active

051911116

ABSTRACT:
The present invention is directed to a process of preparing isocyanate-substituted isophthaloyl chloride by heating a mixture of amino-substituted isophthalic acid, catalyst, phosgene and halogenated solvent under autogeneous pressure.

REFERENCES:
patent: 3607903 (1971-09-01), Csuros et al.
patent: 4745216 (1988-05-01), Keggenhoff et al.
patent: 4948917 (1990-08-01), Steuernagel

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