| 摘要 |
<p>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 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. </p> |
