method for improving the adhesion of plastisols and organosolen on vinylchloridharzbasis produced layers and films adjusted

摘要

1,238,717. Coating. EASTMAN KODAK CO. 5 July, 1968 [10 July, 1967], No. 32116/ 68. Heading B2E. [Also in Division C3] The adhesion of a vinyl chloride polymer to a substrate is promoted by applying to the substrate an unsaturated, unterminated polyester having a molecular weight of up to 4,000, an acid number up to 50 and a hydroxyl number of from 25 to 500, and having a polyol component, from 20 to 100% by weight of which comprises the residue of 1, 4-cyclohexanedimethanol, and a polyacid component, from 20 to 100% by weight of which comprises the residue of fumaric, maleic, itaconic, citraconic, mesaconic and/or glutaconic acids, the polyester being applied in a blend with a plasticizer for a vinyl chloride polymer and the vinyl chloride polymer being applied subsequently or the polyester being applied in a blend of such a blend and a vinyl chloride polymer. Suitable substrates are cold-rolled steel and aluminium.