C - Chemistry – Metallurgy – 08 – F
Patent
C - Chemistry, Metallurgy
08
F
400/5912, 400/90
C08F 210/02 (2006.01) C08F 218/04 (2006.01)
Patent
CA 1306820
ABSTRACT OF THE DISCLOSURE Novel pressure-sensitive aqueous adhesive dispersion comprising 40 to 65% by weight, based on the dispersion weight, of a copolymer produced by radical emulsion polymerization of ethylene, vinyl esters of saturated carboxylic acids of 2 to 12 carbon atoms, ethylenically unsaturated carboxylic acids, ethylenically unsaturated hydroxyalkyl functional compounds, optionally present (meth)acrylic acid esters with alkyl of 4 to 12 carbon atoms and optionally present mono- or poly-ethylenlcally unsaturated compounds having a second order transition temperature of -20 to -60°C and a K value of 50 to 180, characterized in that the copolymer was obtained by polymerization of a) 10 - 45 % by weight of ethylene b) 0 - 25 % by weight of acrylic ester(s) c) 40 - 89 % by weight of vinyl esters(s) d) 0.5- 4 % by weight of ethylenically unsaturated carboxylic acids e) 0.5-10 % by weight of ethylene-unsaturated hydroxyalkyl- functional compounds f) 0 - 10 % by weight of additional mono- or polyethylenically unsaturated compound in the presence of 1 - 6% by weight, referred to the comonomer mixture, of at least one emulsifier and a process for their preparation.
514511
Ball Peter
Marquardt Klaus
Selig Manfred
Stallbauer Fritz
Weissgerber Rudolf
Moffat & Co.
Wacker-Chemie G.m.b.h.
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