Aqueous, high-solids synthetic rubber emulsion and its preparation
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United States of America Patent
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Apr 23, 1996
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N/A
app pub date -
Nov 18, 1994
filing date -
Dec 30, 1993
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Expired
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Abstract
A process for the chemical agglomeration of a finely dispersed, aqueous synthetic rubber emulsion which involves: contacting the finely dispersed, aqueous synthetic rubber emulsion with an agglomeration agent of a water-soluble or water-dispersible copolymer, wherein the copolymer contains 10 to 90% by weight of one or more hydrophobic, water-insoluble, olefinically unsaturated monomers; and 90 to 10% by weight of one or more hydrophilic, water-soluble and salt-forming, olefinically unsaturated monomers; at a temperature and concentration sufficient to cause agglomeration of the finely dispersed, aqueous synthetic rubber emulsion, and the use of the thus obtained high solids synthetic rubber emulsion in the production of foamed shaped articles and foamed latices is provided.
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