Continuous emulsion polymerization process

Details Continuous emulsion polymerization process Continuous emulsion polymerization process

1984-01-27

1984-10-30

Michl, Paul R.

Synthetic resins or natural rubbers -- part of the class 520 ser

Synthetic resins

Polymerizing in two or more physically distinct zones

523201, 524458, 524460, C08F26502

Patent

active

044800789

ABSTRACT:
This invention relates to an improved continuous emulsion polymerization process. Specifically, this invention relates to an improved method for producing carboxylated styrene/butadiene latices. The improvement is characterized in that a reaction mixture containing specified reaction ingredients and only a portion of the primary monomers is charged to a first reaction zone followed by subsequent injection of the remaining portion of the primary monomers to the following reaction zone in a chain consisting of two or more reactors. The latices produced by the process of this invention have improved stability during polymerization and improved physical and application properties.

REFERENCES:
patent: 4246156 (1981-01-01), Heins

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