Patents Assigned to ARKEMAN INC.
  • Acrylic process aid for vinyl foam extrusion
    Patent number: 10442926
    Abstract: The present invention relates to an acrylic process aid useful in vinyl foam extrusion. The process aid is an acrylic copolymer containing from 50 to 79 weight percent of methyl methacrylate monomer units and has a Tg of less than 90° C., preferably less than 70° C., and more preferably less than 65° C. PVC and CPVC foams containing this acrylic process aid fuse faster at the same temperature, or fuse in the same time at lower temperatures than foam formulations currently used.
    Type: Grant
    Filed: September 23, 2010
    Date of Patent: October 15, 2019
    Assignee: ARKEMAN INC.
    Inventor: Paul R. Lavallee
  • ACRYLIC PROCESS AID FOR VINYL FOAM EXTRUSION
    Publication number: 20120189837
    Abstract: The present invention relates to an acrylic process aid useful in vinyl foam extrusion. The process aid is an acrylic copolymer containing from 50 to 79 weight percent of methyl methacrylate monomer units and has a Tg of less than 90° C., preferably less than 70° C., and more preferably less than 65° C. PVC and CPVC foams containing this acrylic process aid fuse faster at the same temperature, or fuse in the same time at lower temperatures than foam formulations currently used.
    Type: Application
    Filed: September 23, 2010
    Publication date: July 26, 2012
    Applicant: ARKEMAN INC.
    Inventor: Paul R. Lavallee