Patents by Inventor Paul R. Lavallee

Paul R. Lavallee has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Acrylic process aid for vinyl foam extrusion
    Patent number: 11168206
    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 5, 2019
    Date of Patent: November 9, 2021
    Assignee: Arkema Inc.
    Inventor: Paul R. Lavallee
  • ACRYLIC PROCESS AID FOR VINYL FOAM EXTRUSION
    Publication number: 20190390050
    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 5, 2019
    Publication date: December 26, 2019
    Inventor: Paul R. Lavallee
  • 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
  • Poly vinyl chloride foam promoters
    Patent number: 9670331
    Abstract: The density of rigid foamed articles made by the thermal decomposition of a blowing agent in a vinyl chloride polymer is reduced by the use of a tin based blowing agent activator(s). The tin based activator also reduces the activation temperature of a chemical blowing agent, allowing for more optimal evolution of gas during plastic processing. Dibutyl tin oxide or tin maleates are superior activators of vinyl chloride polymer blowing agents.
    Type: Grant
    Filed: September 16, 2009
    Date of Patent: June 6, 2017
    Assignee: PMC ORGANOMETALLIX, INC.
    Inventor: Paul R. Lavallee
  • Acrylic copolymer for use in highly filled composites
    Patent number: 9587100
    Abstract: The invention relates to an acrylic copolymer additive useful as a process aid in highly filled polyvinyl chloride (PVC) and chlorinated polyvinyl chloride (CPVC) composites. The acrylic additive is especially useful in highly filled PVC flooring tiles, rolled flooring, pipe and siding. The acrylic copolymer additive contains from 50 to 79 weight percent of methyl methacrylate monomer units, and has a Tg of less than 90° C.
    Type: Grant
    Filed: December 23, 2013
    Date of Patent: March 7, 2017
    Assignee: Arkema Inc.
    Inventors: Paul R. Lavallee, Mark L. Lavach, Rong Maria Hu
  • ACRYLIC COPOLYMER FOR USE IN HIGHLY FillED COMPOSITES
    Publication number: 20140107279
    Abstract: The invention relates to an acrylic copolymer additive useful as a process aid in highly filled polyvinyl chloride (PVC) and chlorinated polyvinyl chloride (CPVC) composites. The acrylic additive is especially useful in highly filled PVC flooring tiles, rolled flooring, pipe and siding. The acrylic copolymer additive contains from 50 to 79 weight percent of methyl methacrylate monomer units, and has a Tg of less than 90° C.
    Type: Application
    Filed: December 23, 2013
    Publication date: April 17, 2014
    Applicant: Arkema Inc.
    Inventors: Paul R. LAVALLEE, Mark L. LAVACH, Rong Maria HU
  • Acrylic copolymer for use in highly filled composites
    Patent number: 8629211
    Abstract: The invention relates to an acrylic copolymer additive useful as a process aid in highly filled polyvinyl chloride (PVC) and chlorinated polyvinyl chloride (CPVC) composites. The acrylic additive is especially useful in highly filled PVC flooring tiles, rolled flooring, pipe and siding. The acrylic copolymer additive contains from 50 to 79 weight percent of methyl methacrylate monomer units, and has a Tg of less than 90° C.
    Type: Grant
    Filed: December 19, 2012
    Date of Patent: January 14, 2014
    Assignee: Arkema Inc.
    Inventors: Paul R. Lavallee, Mark L. Lavach, Rong Maria Hu
  • ACRYLIC COPOLYMER FOR USE IN HIGHLY FILLED COMPOSITES
    Publication number: 20130122227
    Abstract: The invention relates to an acrylic copolymer additive useful as a process aid in highly filled polyvinyl chloride (PVC) and chlorinated polyvinyl chloride (CPVC) composites. The acrylic additive is especially useful in highly filled PVC flooring tiles, rolled flooring, pipe and siding. The acrylic copolymer additive contains from 50 to 79 weight percent of methyl methacrylate monomer units, and has a Tg of less than 90° C.
    Type: Application
    Filed: December 19, 2012
    Publication date: May 16, 2013
    Applicant: Arkema Inc.
    Inventors: Paul R. Lavallee, Mark L. Lavach, Rong M. Hu
  • Acrylic copolymer for use in highly filled composites
    Patent number: 8367764
    Abstract: The invention relates to an acrylic copolymer additive useful as a process aid in highly filled polyvinyl chloride (PVC) and chlorinated polyvinyl chloride (CPVC) composites. The acrylic additive is especially useful in highly filled PVC flooring tiles, rolled flooring, pipe and siding. The acrylic copolymer additive contains from 50 to 79 weight percent of methyl methacrylate monomer units, and has a Tg of less than 90° C.
    Type: Grant
    Filed: January 9, 2008
    Date of Patent: February 5, 2013
    Assignee: Arkema Inc.
    Inventors: Paul R. Lavallee, Mark L. Lavach, Rong M. Hu
  • 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
  • POLY VINYL CHLORIDE FOAM PROMOTERS
    Publication number: 20110172320
    Abstract: The density of rigid foamed articles made by the thermal decomposition of a blowing agent in a vinyl chloride polymer is reduced by the use of a tin based blowing agent activator(s). The tin based activator also reduces the activation temperature of a chemical blowing agent, allowing for more optimal evolution of gas during plastic processing. Dibutyl tin oxide or tin maleates are superior activators of vinyl chloride polymer blowing agents.
    Type: Application
    Filed: September 16, 2009
    Publication date: July 14, 2011
    Applicant: Arkema Inc.
    Inventor: Paul R. Lavallee
  • ACRYLIC COPOLYMER FOR USE IN HIGHLY FILLED COMPOSITES
    Publication number: 20090111915
    Abstract: The invention relates to an acrylic copolymer additive useful as a process aid in highly filled polyvinyl chloride (PVC) and chlorinated polyvinyl chloride (CPVC) composites. The acrylic additive is especially useful in highly filled PVC flooring tiles, rolled flooring, pipe and siding. The acrylic copolymer additive contains from 50 to 79 weight percent of methyl methacrylate monomer units, and has a Tg of less than 90° C.
    Type: Application
    Filed: January 9, 2008
    Publication date: April 30, 2009
    Applicant: Arkema Inc.
    Inventors: Paul R. Lavallee, Mark L. Lavach, Rong M. Hu