Emulsion thickeners

Details Emulsion thickeners Emulsion thickeners

C - Chemistry, Metallurgy

08

L

402/403, 400/920

C08L 57/00 (2006.01) C09D 7/00 (2006.01)

Patent

CA 2035605

AB ? RACT OF THE DISCLOSURE This invention relates to an improved polymeric thickener containing one or more polymer stages wherein: at least one of said polymer stages is an ionically-soluble polymer, said ionically-soluble polymer being polymerized from a monomer mixture comprising; a) from about 0.1 to about 55% by weight of at least one first hydrophobic monomer, b) from about 10 to about 60% by weight (C3-C30) ethylenically-unsaturated, ionizable monomer, and c) from about 10 to about 90% by weight nonionic (C2-C30) ethylenically- unsaturated monomer, the improvement being characterized in that from about 50 to 100 weight % of said nonionic (C2-C30) ethylenically unsaturated monomer (c) is at least one second hydrophobic monomer selected from the group consisting of styrene, butyl acrylate, ethylhexyl acrylate, lauryl acrylate, stearyl acrylate,methyl methacrylate, and butyl methacrylate.

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