Siloxanes

Details Siloxanes Siloxanes

1975-09-16

1978-03-07

Shaver, Paul F.

Chemistry of carbon compounds

Miscellaneous organic carbon compounds

C-metal

2604482H, 2604482Q, 2604482R, C07F 708

Patent

active

040779947

ABSTRACT:
A method of producing a cyclic siloxane by silylating a cyclic silicate with a chlorosilane characterized by reacting the silicate with the chlorosilane in a ketone which is a solvent for the chlorosilane, in the presence of a minor molar proportion with respect to the chlorosilane, of a hydroxy compound soluble in the ketone, and purifying the resulting reaction mixture to recover the cyclic siloxane therefrom.

REFERENCES:
patent: 3297632 (1967-01-01), Wu
patent: 3310526 (1967-03-01), Sporck
patent: 3398173 (1968-08-01), Goossens
patent: 3590064 (1971-06-01), Lacefield
patent: 3694405 (1972-09-01), Litteral
patent: 3792072 (1974-02-01), Lewis
patent: 3842110 (1974-10-01), Razzano
Currell et al., "Formation of Polyorganosiloxanes from Silicate Minerals" in Nature Physical Science, vol. 236, p. 108, 4/1972.
Pierce, "Silylation of Organic Compounds," pp. 7 & 8, 1968.

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