| 摘要 |
There is disclosed a process for producing vinyl dispersion resins by means of the emulsion polymerization 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 DEG C. to about 70 DEG C. The paste resins so produced have improved properties, such as foam properties, and polymer buildup in the reactor is reduced.
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