Styrene-butadiene copolymer latices containing carboxyl groups

Details Styrene-butadiene copolymer latices containing carboxyl groups Styrene-butadiene copolymer latices containing carboxyl groups

C - Chemistry, Metallurgy

08

L

400/9046

C08L 9/00 (2006.01) C08F 212/08 (2006.01) C08F 236/10 (2006.01) C08F 236/12 (2006.01)

Patent

CA 1049175

Abstract of the Disclosure Low-foam carboxylated styrene-butadiene-latices obtained by the emulsion polymerisation of monomer mixtures of: 73.5 to 18.5 parts by weight of butadiene; to 80 parts by weight of styrene; 0 to 10 parts by weight of acrylonitrile; 0 to 5 parts by weight of ethylenically unsaturated carboxylic acid amides or methylol deriva- tives thereof; and 1.5 to 10 parts by weight of ethylenically unsaturated carboxylic acids; wherein the ethylenically unsaturated carboxylic acids consist of a mixture of: 1.0 to 4 parts by weight of acrylic acid and 0.5 to 6 parts by weight of methacrylic acid and wherein less than 0.5 parts by weight of anionic emulsi- fiers are used for polymerisation. The latices can be used inter alia as an impregnating material for soft non-wovens, cardboards and fibre fleece carpets.

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