Patents by Inventor Edward E. LaFleur

Edward E. LaFleur 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).

  • Polymer blends
    Patent number: 5504154
    Abstract: Polymers containing a high percentage of vinyl alcohol units may be blended with copolymers of alkyl methacrylates and unsaturated organic acids and processed into sheet, film, fiber and other objects which exhibit an useful balance of barrier and strength properties.
    Type: Grant
    Filed: May 1, 1995
    Date of Patent: April 2, 1996
    Assignee: Rohm and Haas Company
    Inventors: Robert M. Amici, Edward E. LaFleur, William J. Work
  • Polymeric blends
    Patent number: 5502106
    Abstract: Polymer blends of at least one polar polymer are prepared by admixture with a poly(vinyl alcohol) and a (meth)acrylate copolymer also containing vinyl amide and/or unsaturated acid units. The ternary compositions have attractive processing and performance properties.
    Type: Grant
    Filed: October 31, 1994
    Date of Patent: March 26, 1996
    Assignee: Rohm and Haas Company
    Inventors: Edward E. LaFleur, William J. Work, Robert M. Amici, Newman M. Bortnick, Norman L. Holy
  • Polymer blends
    Patent number: 5451635
    Abstract: Polymers containing a high percentage of vinyl alcohol units may be blended with copolymers of alkyl methacrylates and unsaturated organic acids and processed into sheet, film, fiber and other objects which exhibit an useful balance of barrier and strength properties.
    Type: Grant
    Filed: July 28, 1993
    Date of Patent: September 19, 1995
    Assignee: Rohm and Haas Company
    Inventors: Edward E. LaFleur, William J. Work
  • Melt-processed polymer blends
    Patent number: 5447669
    Abstract: Blends of starch with acrylic polymers containing at least one of copolymerized acid or amide groups may be melt-processed into useful thermoplastic articles.
    Type: Grant
    Filed: January 5, 1995
    Date of Patent: September 5, 1995
    Assignee: Rohm and Haas Company
    Inventors: Newman M. Bortnick, Roger K. Graham, Edward E. LaFleur, William J. Work, Jium-Chen Wu
  • High gas barrier co-extruded multilayer films
    Patent number: 5419967
    Abstract: By addition of methacrylate/unsaturated acid and/or vinyl amide copolymers, poly(vinyl alcohol) can be melt-processed and co-extruded with structural polymers like poly(ethylene terephthalate) to form multilayer films and objects with good adhesion between the components and good barrier properties. The films and objects can be separated and re-used by dissolution in water of the poly(vinyl alcohol)/methacrylate polymer blends and recovery of the structural polymer.
    Type: Grant
    Filed: July 23, 1993
    Date of Patent: May 30, 1995
    Assignee: Rohm and Haas Company
    Inventors: Edward E. LaFleur, William J. Work
  • Melt-processed polymer blends
    Patent number: 5403875
    Abstract: Blends of starch with acrylic polymers containing at least one of copolymerized acid or amide groups may be melt-processed into useful thermoplastic articles.
    Type: Grant
    Filed: May 12, 1994
    Date of Patent: April 4, 1995
    Assignee: Rohm and Haas Company
    Inventors: Newman M. Bortnick, Roger K. Graham, Edward E. LaFleur, William J. Work, Jiun-Chen Wu
  • Polymer blends
    Patent number: 5389724
    Abstract: Polymers containing a high percentage of vinyl alcohol units may be melt-blended with copolymers of alkyl(meth)acrylates and unsaturated organic acids. Flexible films are formed when one of the methacrylic monomers is a monoterminally (meth)acrylated oligomer or polymer of ethylene glycol or propylene glycol.
    Type: Grant
    Filed: June 20, 1994
    Date of Patent: February 14, 1995
    Assignee: Rohm and Haas Company
    Inventor: Edward E. LaFleur
  • Hot melt adhesives
    Patent number: 5378758
    Abstract: Polymers containing a high percentage of vinyl alcohol units may be blended with copolymers of alkyl methacrylates and unsaturated organic acids, the copolymers prefereably containing an adhesion-promoting functionality, the blend preferably containing low levels of a plasticizer to improve melt flow, and the blends in molten form utilized as hot melt adhesives for the bonding of wood, paper, and other celulosic articles.
    Type: Grant
    Filed: December 21, 1993
    Date of Patent: January 3, 1995
    Assignee: Rohm and Haas Company
    Inventors: Robert M. Amici, Newman M. Bortnick, Roger K. Graham, Edward E. LaFleur, William J. Work
  • Polymer blends
    Patent number: 5378759
    Abstract: Polymers containing a high percentage of vinyl alcohol units may be blended with copolymers of alkyl methacrylates and unsaturated organic acids and processed into sheet, film, fiber and other objects which exhibit an useful balance of barrier and strength properties.
    Type: Grant
    Filed: December 10, 1992
    Date of Patent: January 3, 1995
    Assignee: Rohm and Haas Company
    Inventors: Robert M. Amici, Edward E. LaFleur, William J. Work
  • Hot melt adhesives made from the blend of polyvinyl alcohol copolymers and copolymers from unsaturated monomers
    Patent number: 5362801
    Abstract: Polymers containing a high percentage of vinyl alcohol units, especially when treated to remove impurities, when blended with copolymers of alkyl (meth)acrylates, N-vinyllactams or N-vinylamides, and unsaturated acids, preferably further with a small amount of plasticizer, may be applied as hot melt adhesives to paper, wood, and other cellulosic articles.
    Type: Grant
    Filed: December 2, 1993
    Date of Patent: November 8, 1994
    Assignee: Rohm and Haas Company
    Inventors: Robert M. Amici, Newman M. Bortnick, Roger K. Graham, Edward E. LaFleur, William J. Work
  • Hot melt adhesives
    Patent number: 5362802
    Abstract: Polymers containing a high percentage of vinyl alcohol units, especially when treated to remove impurities, when blended with copolymers of alkyl (meth)acrylates, N-vinyllactams or N-vinylamides, and unsaturated acids, preferably further with a small amount of plasticizer, may be applied as hot melt adhesives to paper, wood, and other cellulosic articles.
    Type: Grant
    Filed: March 18, 1994
    Date of Patent: November 8, 1994
    Assignee: Rohm and Haas Company
    Inventors: Robert M. Amici, Newman M. Bortnick, Roger K. Graham, Edward E. LaFleur, William J. Work
  • Polymeric blends of polyvinyl alcohol copolymers with copolymers of unsaturated monomers
    Patent number: 5362803
    Abstract: Polymers containing a high percentage of vinyl alcohol units, when treated with acid to remove impurities, may be blended with low levels of copolymers of alkyl methacrylates and N-vinyllactams or N-vinylamides, optionally containing copolymerized acid, and processed into sheet, film, fiber and other objects which exhibit a useful balance of barrier and strength properties.
    Type: Grant
    Filed: July 16, 1993
    Date of Patent: November 8, 1994
    Assignee: Rohm and Haas Company
    Inventors: Edward E. LaFleur, Robert M. Amici, William J. Work
  • Fiber-forming process from polymeric blends
    Patent number: 5322892
    Abstract: A melt process for forming fibers from blends of polymers containing a high percentage of vinyl alcohol units with terpolymers of alkyl methacrylates, unsaturated acids, anhydrides or glycidyl-containing esters, and N-vinyllactams or N-vinylamides is described.
    Type: Grant
    Filed: November 25, 1992
    Date of Patent: June 21, 1994
    Assignee: Rohm and Haas Company
    Inventors: Edward E. LaFleur, Robert M. Amici, William J. Work
  • High gas barrier co-extruded multiplayer films
    Patent number: 5258230
    Abstract: By addition of methacrylate/unsaturated acid and/or vinyl amide copolymers, poly(vinyl alcohol) can be melt-processed and co-extruded with structural polymers like poly(ethylene terephthalate) to form multilayer films and objects with good adhesion between the components and good barrier properties. The films and objects can be separated and re-used by dissolution in water of the poly(vinyl alcohol)/methacrylate polymer blends and recovery of the structural polymer.
    Type: Grant
    Filed: May 4, 1992
    Date of Patent: November 2, 1993
    Assignee: Rohm and Haas Company
    Inventors: Edward E. LaFleur, William J. Work
  • Polymeric blends
    Patent number: 5189097
    Abstract: Polymers containing a high percentage of vinyl alcohol units may be blended with copolymers of alkyl methacrylates and N-vinyllactams or N-vinylamides and processed into sheet, film, fiber and other objects which exhibit an useful balance of barrier and strength properties.
    Type: Grant
    Filed: October 22, 1991
    Date of Patent: February 23, 1993
    Assignee: Rohm and Haas Company
    Inventors: Edward E. LaFleur, Robert M. Amici, William J. Work