Process for treating polyvinyl fluoride and laminates prepared therefrom
AssigneeProduits Chimiques Ugine Kuhlmann
InventorAlbert Strassel
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Abstract
The present invention provides a process for treating polyvinyl fluoride surfaces to enhance adhesion of other polymers thereto comprising applying to at least one surface thereof a solution consisting essentially of a coating polymer selected from a polyurethane or an alkyl polymethacrylate and at least one aprotic polar solvent in which said polymer is soluble, and exposing said surface to a temperature of from about 120.degree. C. to 230.degree. C. for a time sufficient to evaporate said solvent. The treated polyvinyl fluoride having an adhering intermediary surface of polyurethane or alkyl polymethacrylate usefully serves as a means to secure the polyvinyl fluoride to another polymer which otherwise would not adhere to polyvinyl.
Claims9
A process for treating polyvinyl fluoride surfaces to enhance adhesion of other polymers thereto comprising applying to at least one surface thereof a solution consisting essentially of a thermoplastic coating polymer selected from a polyurethane or an alkyl polymethacrylate and at least one aprotic polar solvent in which said polymer is soluble, and exposing said surface to a temperature of from about 120.degree. C. to 230.degree. C. for a time sufficient to evaporate said solvent.
Dependencies are inferred from the claim text.