Patent ID: 6254985
Filing Date: 2001-07-03
Classification: C09J,Y10T

Abstract:
A pressure-sensitive adhesive comprising an aqeuous polymer dispersion wherein the polymer comprisesfrom 60 to 95% by weight of a mixture comprising at least one C.sub.4 - alkyl acrylate and at least one C.sub.6 -C.sub.12 - alkyl acrylate (monomers a), from 5 to 30% by weight of ethylenically unsaturated compounds, the homopolymer of which has a glass transition temperature of above 0.degree. C. and containing no functional groups other than the ethylenically unsaturated group (monomers b), from 0 to 10% by weight of ethylenically unsaturated compounds having at least one acid group or acid anhydride group (monomers c), from 0 to 20% by weight of further ethylenically unsaturated compounds (monomers d),the weight percentages being based on the polymer and the polymer dispersion comprising an emulsifier having at least 5% by weight of aromatic carbon atoms (and called aromatic emulsifier for short) or an emulsifier mixture having at least 10% by weight of an aromatic emulsifier.