CONTACT ADHESIVE DISPERSIONS FOR THE PRODUCTION OF SELF-ADHESIVE ARTICLES

摘要

Contact adhesive dispersions contain (A) an aqueous dispersion of a copolymer A which has a glass transition temperature below 0.degree.C and consists of (a) from 50 to 99 % by weight of esters of acrylic acid with non-tertiary alkanols, (b) from 0 to 50 % by weight of esters of acrylic or methacrylic acid and/or vinyl esters and/or (meth)acrylonitrile and/or styrene and/or tert.butyl acrylate, (c) from 0.5 to 5 % by weight of monoolefinitally unsaturated carboxylic acids and/or their amides which are unsubstituted or substituted at the nitrogen atoms by alkyl and/or alkylol radicals, and/or hydroxyalkyl (meth)acrylates, and (d) from 0.5 to 5% by weight of carbonylcontaining monomers and (8) from 0.05 to 2 moles of a water-soluble dihydrazine compound per mole of carbonyl groups present in the copolymer A.