C - Chemistry – Metallurgy – 08 – F
Patent
C - Chemistry, Metallurgy
08
F
400/9276, 400/92
C08F 2/20 (2006.01) C08F 14/04 (2006.01) C08F 14/06 (2006.01) C08L 27/04 (2006.01)
Patent
CA 1191983
ABSTRACT OF THE DISCLOSURE There is disclosed a process for producing vinyl dispersion resins by means of the emulsion poly- merization technique. The vinyl monomer or monomers are reacted in an aqueous medium using a water-insoluble free radical yielding catalyst, an emulsifier or emulsifier system and a small amount of water-insoluble plasticizer whereby the amount of emulsifier(s) necessary is greatly reduced. All the reaction ingredients are thoroughly mixed and homogenized prior to polymerization at a temperature of about 30°C to about 70°C. The paste resins so produced have improved properties, such as foam properties, and polymer buildup in the reactor is reduced.
368292
Goodrich (b.,f.) Company (the)
Marcoux & Sher Swabey Mitchell Houle
Polyone Corporation
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