Method for preparing hexamethylcyclotrisiloxane and uses for the

Details Method for preparing hexamethylcyclotrisiloxane and uses for the Method for preparing hexamethylcyclotrisiloxane and uses for the

1983-08-17

1986-10-28

Shaver, Paul F.

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

Organic compounds

Silicon containing

C07F 708

Patent

active

046200231

ABSTRACT:
Hexamethylcyclotrisiloxane is prepared by heating linear, branched, or cross-linked organopolysiloxanes containing at least 50 mol percent of dimethylsiloxane units to at least 350.degree. C. in the absence of substances which attack the siloxane group during heating and simultaneously distilling off the cyclic dimethylpolysiloxanes thus formed.
The hexamethylcyclotrisiloxane thus prepared is an excellent carrier for fragrant materials, especially where the carrier is present in admixture with other carrier substances such as tetramethylcyclobutanedione.

REFERENCES:
patent: 2860152 (1958-11-01), Fletcher
patent: 3846464 (1974-11-01), Razzano
patent: 3989733 (1976-11-01), Okamoto et al.
patent: 4111973 (1978-09-01), Bluestein

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