Patent ID: 6414087
Filing Date: 2002-07-02
Classification: C08F,C08L,C09J

Abstract:
A process for the preparation of an aqueous non-crosslinked polymer dispersion suitable for preparing single layer redatachable pressure sensitive adhesive films, said process comprising:copolymerizing by free radical-initiated emulsion polymerization monomer(s) comprising at least one a) mono-ethylenically unsaturated monomer selected from the group consisting of (meth)acrylic acid esters of C1-12 branched or unbranched alcohols, vinyl esters of C1-12 branched or unbranched carboxylic acids, vinyl aromatics, vinyl halides, and olefins, and b) from 0.01 to 2.0 weight percent, based on the weights of a) and b) of polar comonomers, said polar comonomers selected from the group consisting of polar, non-ionic comonomers and polar, ionic monomers, wherein when polar, ionic monomers are present, they are present in an amount not more than 1.0 weight percent based on the weights of a) and b).