Process for producing silicon-containing isocyanate compound

Details Process for producing silicon-containing isocyanate compound Process for producing silicon-containing isocyanate compound

1997-04-10

1999-03-23

Shaver, Paul F.

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

Organic compounds

Silicon containing

C07F 710

Patent

active

058862056

ABSTRACT:
A process for producing silicon-containing isocyanate compounds of the general formula II, comprising thermally induced decomposition of a silicon-containing carbamic ester of the general formula I at a pH of not higher than 8 in the presence of a catalyst of at least one metal or its compound.
General Formula I: ##STR1## General Formula II: ##STR2## wherein R.sup.1 to R.sup.6 and R.sup.8 each represent a hydrocarbon group, R.sup.7 represents an alkylene group having 1 to 8 carbon atoms, n, m and l represent an integer of 0 to 3 and m+n+l=3, and a, b and c represent integers of 0 to 3, 0 to 2, and 0 to 8, respectively.

REFERENCES:
patent: 3598852 (1971-08-01), Berger
patent: 3607901 (1971-09-01), Berger
patent: 4064151 (1977-12-01), Hedaya et al.
patent: 5393910 (1995-02-01), Mui et al.

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