Colloidal silesquioxanes

Details Colloidal silesquioxanes Colloidal silesquioxanes

1982-07-08

1984-01-03

Griffin, Ronald W.

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

Synthetic resins

At least one aryl ring which is part of a fused or bridged...

524773, 524777, 524837, C08G 7706

Patent

active

044242972

ABSTRACT:
Colloidal suspensions of silsesquioxanes of the general formula RSiO.sub.3/2, wherein R is a hydrocarbon or a substituted hydrocarbon radical containing from 1 to 7 carbon atoms, are prepared by the emulsion polymerization of a silane of general formula RSi(OR').sub.3 in a water surfactant mixture with a pH greater than or equal to 8 where the resulting silsesquioxanes has an average particle size of about 10 to 1000 angstroms. The surfactant is an organic carboxylic acid having greater than eight carbon atoms or a water soluble salt of the same carboxylic acids.

REFERENCES:
patent: 2798858 (1957-07-01), Brown
patent: 2891920 (1959-06-01), Hyde et al.
patent: 3433780 (1969-03-01), Cekada et al.
patent: 4175159 (1979-11-01), Raleigh

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