Method for emulsion polymerization

Details Method for emulsion polymerization Method for emulsion polymerization

1995-06-05

1998-05-26

Henderson, Christopher

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

Synthetic resins

Polymers from only ethylenic monomers or processes of...

526 94, C08F 226

Patent

active

057566194

ABSTRACT:
The specification discloses an emulsifier for use in preparing olefinic polymers by emulsion polymerization which comprises a mixture of alkali metal salts of unsaturated branched chain isomers of fatty acids characterized by a relatively low concentration of di- and poly-unsaturated fatty acids. The unsaturated branched chain isomers of fatty acids are preferably provided by the monomeric distillate fraction from the dimerization of the unsaturated fatty acid fraction of tall oil, and the alkali metal is preferably selected from the group consisting of sodium and potassium. The disclosure also describes a polymerization emulsion for use in the polymerization of olefinic monomers and a method for polymerizing olefinic monomeric compounds employing an emulsifier which comprises the saponified monomeric distillate fraction from the dimerization of unsaturated fatty acids.

REFERENCES:
Zinkel, Duane F. and James Russell, "Other Uses of Fatty Acids", Naval Stores, Pulp Chemical Association, Inc., 1980.
Arizona Chemical Company, SYLFAT D-1, Data Sheet, Aug. 1988.
Semon, W.L., "The Use of Fatty Acids of Their Soaps in the Manufacture of Butadiene Synthetic Rubber", The Journal of the American Oil Chemists' Society, Feb. 1947.
Wilson, J.W., and E.S. Pfau, "Soap Ingredients as Retarders in Butadiene-Styrene Copolymerization", Industrial and Engineering Chemistry, vol. 40, No. 3, Mar. 1948.

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