Emulsions containing ultrahigh viscosity silicone polymers

Details Emulsions containing ultrahigh viscosity silicone polymers Emulsions containing ultrahigh viscosity silicone polymers

1998-09-21

1999-12-07

Michl, Paul R.

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...

C08L 8300

Patent

active

059985372

ABSTRACT:
Emulsions containing particles of an organopolysiloxane with an average particle diameter of less than about 100 nanometer are prepared by (i) adding a polyfunctional silane to an aqueous medium containing a nonionic surfactant, an anionic or cationic surfactant, and a catalyst; (ii) allowing the polyfunctional silane to hydrolyze; (iii) adding a cyclic siloxane to the aqueous medium containing the pre-hydrolyzed polyfunctional silane; (iv) copolymerizing the cyclic siloxane and the pre-hydrolyzed polyfunctional silane to form the organopolysiloxane; and (v) continuing copolymerizing step (iv) until the resulting organopolysiloxane has a viscosity greater than about 100,000,000 centipoise (mPa.multidot.s).

REFERENCES:
patent: 4122247 (1978-10-01), Evans
patent: 4157337 (1979-06-01), Evans
patent: 4272624 (1981-06-01), Razzano
patent: 4341888 (1982-07-01), Razzano
patent: 4814376 (1989-03-01), Tanaka
patent: 5002762 (1991-03-01), Bolich
patent: 5661215 (1997-08-01), Gee
patent: 5684085 (1997-11-01), Gee

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