B - Operations – Transporting – 01 – F
Patent
B - Operations, Transporting
01
F
134/30, 400/5912
B01F 17/10 (2006.01) C08F 2/24 (2006.01) C08F 20/02 (2006.01) C08L 33/06 (2006.01)
Patent
CA 1055628
ABSTRACT OF THE DISCLOSURE For use as an emulsifier for emulsion polymerization of acrylate monomer mixtures, there is provided a novel surfactant mixture of 100 parts by weight consisting of: from 57 to 87 parts by wt. of a soluble salt of the sulfosuccinate half ester of an alcohol selected from isodecanol, isooctanol, 2-ethyl hexanol, tridecanol and telomer ethylene alcohols having 8 to 12 carbon atoms, from 0 to 30 parts by wt. of a soluble salt of the sulfosuccinate half ester of an alkyl-polyoxyethylene alcohol having the formula, R(OCH2CH2)nOH wherein R is alkyl having 6 to 20 carbon atoms and n is a value in the range from 2 to 50; and from 0 to 33 parts by weight of a soluble salt of the sulfosuccinate half ester of a polyethoxyalkylphenol having the formula, Image wherein R is alkyl having 6 to 12 carbon atoms and n is a value in the range from 2 to 50. The defined emulsifiers, even when used at concentrations less than usual for emulsion polymerization, produce acrylate latex products having a favor- able combination of several advantageous properties, particularly good mechanical stability and low viscosity, even when a cross-linking monomer is included in the monomer mixture to be polymerized.
221772
Burkhard Herbert
Fetter Edward J.
Hsu Nelson N.
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