promoters of accession to plastisols able to maintain stable color of plastisols the effect of heat treatment of application

摘要

The object of the invention are adhesion promoters for plastisols of polyvinylchloride polymers or copolymers, characterized in that they are constituted by polyaminoamidic resins obtained by means of the condensation of: 1 equivalent of carboxylic acids, obtained by polymerization of unsaturated fatty acids, of composition comprised within the following ranges: 0-2% monomers, 10-50% dimers, 50-90% trimers, with from 1.0 to 2.2 equivalents of an heterocyclic amine of general formula IMAGE wherein R can be H or an alkylamino group -R'-NH2, wherein R' is a saturated alifatic chain.