Methods for preparing cyclopolysiloxanes

Details Methods for preparing cyclopolysiloxanes Methods for preparing cyclopolysiloxanes

1982-08-16

1983-10-25

Shaver, Paul F.

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

Organic compounds

Silicon containing

C07F 708

Patent

active

044120800

ABSTRACT:
Cyclic methyl polysiloxanes can be prepared by hydrolysis of dimethyldichlorosilane and aqueous hydrochloric acid in the presence of a normal C.sub.6-16 alkyl sulfonic acid to give good yields of cyclic polysiloxanes and minimal amounts of linear silanols.

REFERENCES:
patent: 2860152 (1958-11-01), Fletcher
patent: 3398173 (1968-08-01), Goossens
patent: 3590064 (1971-06-01), Lacefield
patent: 3763212 (1973-10-01), McEntee et al.
patent: 3983148 (1976-09-01), Reedy et al.
patent: 4276425 (1981-06-01), Burkhardt et al.

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