Process for preparing spherical, monodispersed organopolysiloxan

Details Process for preparing spherical, monodispersed organopolysiloxan Process for preparing spherical, monodispersed organopolysiloxan

1990-05-21

1992-07-14

Marquis, Melvyn I.

Synthetic resins or natural rubbers -- part of the class 520 ser

Synthetic resins

From silicon reactant having at least one...

528 33, 423337, C08G 7706

Patent

active

051304007

ABSTRACT:
The invention relates to a process for preparing spherical, monodispersed organopolysiloxanes, which comprises reacting an alkoxysilane of the general formula ##STR1## in which the R's are selected from the group consisting of methyl, ethyl, n-propyl, iso-propyl, n-butyl, sec-butyl or tert-butyl radicals, with water at a molar ratio of water to alkoxysilane of 40 moles:1 mole to 80 moles:1 mole, and a process for preparing spherical, monodispersed silicon oxycarbides from these organopolysiloxanes.

REFERENCES:
patent: 4408030 (1983-10-01), Marko
patent: 4618666 (1975-10-01), Porte
patent: 4824651 (1989-04-01), Frey et al.
patent: 4833220 (1989-05-01), Frey et al.
patent: 4889904 (1989-12-01), Burns

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