Patent ID: 6770706
Filing Date: 2004-08-03
Classification: C08L,C09J

Abstract:
An aqueous polymer dispersion adhesive which comprises:A) 10 to 98% by weight of at least one aqueous dispersion of a (co)polymer comprising residues of at least styrene and optionally at least one member selected from the group consisting of alkyl acrylate and alkyl methacrylate containing 1 to 12 carbon atoms in the alkyl group, the solids content of the dispersion being in the range from 30 to 80% by weight; B) a thickener comprising a combination of a) 0.4 to 6% by weight, based on the weight of the adhesive, of an inorganic thickener, and b) 1 to 10% by weight, based on the weight of the adhesive, of an aqueous system comprising a polymer comprising residues of at least acrylic acid and acrylamide with a solids content of 10 to 40% by weight, wherein up to 90% by weight of the aqueous system being replaceable by at least one polymer dispersion selected from the group consisting of polymer dispersions containing acrylate residues, copolymer dispersions containing at least acrylic acid residues and methacrylic acid residues and polyurethanes the aqueous system having a solids content of 20 to 40% by weight; C) 0 to 88% by weight of fillers; D) 0to 2% by weight of pigments; E) 0 to 3% by weight of auxiliaries; F) 0 to 40% by weight of plasticizers; and G) water.