Process for the agglomeration of rubber latexes

Details Process for the agglomeration of rubber latexes Process for the agglomeration of rubber latexes

C - Chemistry, Metallurgy

08

F

400/4706, 400/59

C08F 6/18 (2006.01) C08C 1/07 (2006.01)

Patent

CA 1157179

ABSTRACT OF DISCLOSURE Rubbery polymer latexes are agglomerated by mixing them with another latex containing: (1) a polymer, different from that present in the latex to be agglomerated and less lipophilic than the latter, selected from (a) homopolymers of alkyl acrylates and methacrylates in which the alkyl has from 1 to 12 carbon atoms, and (b) copolymers of ethylenically unsaturated monomers capable of forming water-insoluble homopolymers, and (2) a non-ionic surfactant consisting of an addition product of ethylene oxide. The agglomerating latex is added in quantities corresponding to 0.1-20 parts by weight of solid polymer and to 0.0001-0.2 parts by weight of surfactant per 100 parts by weight of the rubbery polymer present in the latex to be agglomerated. A particular use of the agglomerated rubbery polymer latexes is in the production of ABS resins.

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