Process for the preparation of ketoximosilanes

Details Process for the preparation of ketoximosilanes Process for the preparation of ketoximosilanes

1987-12-04

1988-08-23

Shaver, Paul F.

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

Organic compounds

Silicon containing

C07F 710, C07F 718

Patent

active

047662310

ABSTRACT:
Disclosed is a process for the production of ketoximosilanes and ketoximoalkoxysilanes. Ketoximes are reacted with alkyl trialkoxysilanes in the presence of a catalyst. The reaction is catalyzed by basic compounds which are dissolved or suspended in the ketoxime. The basic compounds that are used are alkali metals and, preferably, the oxides, hydroxides and carbonates of the elements from the 1st and 2nd group and the 3rd sub-group of the Periodic Table of Elements and lanthanides. The process according to the invention prevents the decomposition and explosion that easily occur in the known processes. The ketoximosilanes prepared according to the invention are valuable crosslinking agents for organopolysiloxane compositions.

REFERENCES:
patent: 4705877 (1987-11-01), Gornowicz et al.
patent: 4705878 (1987-11-01), Gornowicz et al.
Abstracts of SU-435-243 and SU-724-514 Chemical Abstracts CA:91718b and CA:93:132615j.

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