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Water borne pressure sensitive adhesive compositions derived from copolymers of higher vinyl esters

  • US 6,426,151 B1
  • Filed: 02/03/1999
  • Issued: 07/30/2002
  • Est. Priority Date: 11/12/1996
  • Status: Expired due to Term
First Claim
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1. In a process for forming a laminate comprised of a flexible plasticized polyvinyl chloride film bonded to a substrate by means of a water based, acrylic emulsion adhesive comprised of a copolymer having polymerized units of C1-12 alkyl acrylates or C1-12 alkyl methacrylates wherein said process comprises the steps of coating said water based acrylic emulsion onto the flexible plasticized polyvinyl chloride film or onto the substrate, drying the resulting film and then laminating the flexible plasticized polyvinyl chloride film to the substrate, the improvement for enhancing adhesion and resistance to plasticizer migration from the flexible plasticized polyvinyl chloride film which comprises:

  • utilizing a water based, acrylic emulsion adhesive which incorporates a copolymer comprising polymerized units of C1-12 alkyl acrylates or C1-12 alkyl methacrylates and polymerized units of a vinyl C8-13 ester of a neo-acid obtained from a feedstock of propylene oligomers.

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