Method of making polysiloxane emulsions

Details Method of making polysiloxane emulsions Method of making polysiloxane emulsions

1995-04-05

1996-04-02

Marquis, Melvyn I.

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...

524588, C08L 8300

Patent

active

055041507

ABSTRACT:
Emulsions containing liquid polymers are made by first condensing monomers in a polymerization reactor having an inlet, a reaction chamber, and an outlet. The monomers are mixed with a condensation catalyst, and a pressurized gas forms a foaming mixture. The foaming mixture is fed down the chamber to the outlet while the monomers polymerize in the chamber. Water and a surfactant are then fed to the lower end of the chamber to form a water-in-oil emulsion with the aid of the foaming action in the chamber. A shear device then inverts the water-in-oil emulsion to an oil-in-water emulsion.

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patent: 3839388 (1974-10-01), Nitzsche
patent: 4123403 (1978-10-01), Warner
patent: 4564693 (1986-01-01), Riederer
patent: 4701490 (1987-10-01), Burkhardt
patent: 5109093 (1992-04-01), Rees
patent: 5319120 (1994-06-01), Gilson

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