Patent ID: 6793760
Filing Date: 2004-09-21
Classification: C08J,C11D

Abstract:
A method of adhesive bonding a PVC surface to a substrate, the method comprising:cleaning a PVC surface with an aqueous alkaline composition comprising: A) 2 to 30 wt. % of a compound different from complexing agent (B) and rinsing auxiliary agent (E) and having an alkaline reaction in an aqueous medium, B) 1 to 30 wt. % of a complexing agent compound different from compound (A) and rinsing auxiliary agent (E), C) 5 to 40 wt. % of a compound with at least one hydroxyl group selected from the group consisting of alcohols and ethers of alcohols wherein the alcohol contains 3 to 12 carbon atoms, D) 1 to 15 wt. % of a surfactant based on fatty alcohols, E) 1 to 30 wt. % of a rinsing auxiliary agent compound different from compound (A) and compound (B), and F) 0 to 8 wt. % of water-soluble colorants and builders; and applying an adhesive to either the cleaned PVC surface or the substrate and bonding the PVC surface and the substrate together.