ENTSCHAEUMERZUBEREITUNGEN

A process for forming a polymer suitable for use in a defoaming agent, comprising polymerizing in the presence of a free-radical-forming catalyst a composition comprising by weight approximately 10-90% of a polydiorganosiloxane, 5-85% of a polyalkylene oxide or polyalkylene oxide derivative, and 5-8...

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Bibliographic Details
Main Authors ALBERTS,HEINRICH,.DR, STEINBERGER,HELMUT,.DR
Format Patent
LanguageGerman
Published 07.07.1983
Subjects
BOILING
BOILING APPARATUS
CHEMISTRY
COMPOSITIONS BASED THEREON
MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVINGCARBON-TO-CARBON UNSATURATED BONDS
METALLURGY
MIXING, e.g. DISSOLVING, EMULSIFYING, DISPERSING
ORGANIC MACROMOLECULAR COMPOUNDS
PERFORMING OPERATIONS
PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
SEPARATION
THEIR PREPARATION OR CHEMICAL WORKING-UP
TRANSPORTING
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Summary:A process for forming a polymer suitable for use in a defoaming agent, comprising polymerizing in the presence of a free-radical-forming catalyst a composition comprising by weight approximately 10-90% of a polydiorganosiloxane, 5-85% of a polyalkylene oxide or polyalkylene oxide derivative, and 5-85% of a vinyl monomer, thereby to form vinyl polymer bridges linking the polydiorganosiloxane and polyalkylene oxide or derivative thereof. The polymer is then blended with water and an emulsifying and/or dispersing auxiliary and subjected to high shear to form a defoaming agent.
Bibliography:Application Number: DE19813151957