Process for the preparation of cured silicone powder

Details Process for the preparation of cured silicone powder Process for the preparation of cured silicone powder

1998-04-21

1999-10-19

Moore, Margaret G.

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...

528 15, 525478, G08G 7708

Patent

active

059690399

ABSTRACT:
A highly productive process for preparing cured silicone powder having a uniform particle size, in which a platinum-alkenylsilozane complex catalyst is added to a water-based dispersion of a silicone composition. The silicone composition is (i) an organopolysiloxane having at least two silicon-bonded alkenyl groups in each molecule, and (ii) an organopolysiloxane having at least two silicon-bonded hydrogen atoms in each molecule. The catalyst is added and dispersed in the form of liquid particles with an average particle size in volumetric particle size distribution in water of no more than one micron.

REFERENCES:
patent: 4742142 (1988-05-01), Shimizu et al.
patent: 4743670 (1988-05-01), Yoshida et al.
patent: 4761454 (1988-08-01), Oba et al.
patent: 5028653 (1991-07-01), Desmonceau et al.
patent: 5538793 (1996-07-01), Inokuchi et al.
patent: 5741439 (1998-04-01), Armstrong et al.

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