Patents by Inventor John Michael Scoarste

John Michael Scoarste 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).

  • Compositions of polycondensed branched polyester polymers and aromatic polycarbonates, and the closed cell polymer foams made therefrom
    Patent number: 6214897
    Abstract: A foamable polyester composition comprising a combination of blowing agent and mixed polymer composition comprising: a) a semi-crystalline polyester composition comprising a polycondensed branched polyester polymer, and b) an aromatic polycarbonate polymer. The foamable composition has a high extrusion melt strength, and can pulled across a die without ripping, to form a continuous thermoformable closed cell polyester sheet. The foamed sheets have a uniform, fine, and closed cell morphology; and simultaneously are less dense but have a higher impact strength than comparable closed cell polymers made in only with linear polyesters as the polyester component or without the aromatic polycarbonate.
    Type: Grant
    Filed: November 22, 1999
    Date of Patent: April 10, 2001
    Assignee: Shell Oil Company
    Inventors: Deborah Ann Snell Tung, Kevin Rollick, John Michael Scoarste, Walter Francis Johnston
  • Compositions of polycondensed branched polyester polymers and aromatic polycarbonates, and the closed cell polymer foams made therefrom
    Patent number: 6100307
    Abstract: A foamable polyester composition comprising a combination of blowing agent and mixed polymer composition comprising:a) a semi-crystalline polyester composition comprising a polycondensed branched polyester polymer, andb) an aromatic polycarbonate polymer.The foamable composition has a high extrusion melt strength, and can pulled across a die without ripping, to form a continuous thermoformable closed cell polyester sheet. The foamed sheets have a uniform, fine, and closed cell morphology; and simultaneously are less dense but have a higher impact strength than comparable closed cell polymers made in only with linear polyesters as the polyester component or without the aromatic polycarbonate.
    Type: Grant
    Filed: March 17, 1998
    Date of Patent: August 8, 2000
    Assignee: Shell Oil Company
    Inventors: Deborah Ann Snell Tung, Kevin Rollick, John Michael Scoarste, Walter Francis Johnston
  • Compositions of polycondensed branched polyester polymers and aromatic polycarbonates, and the closed cell polymer foams made therefrom
    Patent number: 6080824
    Abstract: A foamable polyester composition comprising a combination of blowing agent and mixed polymer composition comprising:a) a semi-crystalline polyester composition comprising a polycondensed branched polyester polymer, andb) an aromatic polycarbonate polymer.The foamable composition has a high extrusion melt strength, and can pulled across a die without ripping, to form a continuous thermoformable closed cell polyester sheet. The foamed sheets have a uniform, fine, and closed cell morphology; and simultaneously are less dense but have a higher impact strength than comparable closed cell polymers made in only with linear polyesters as the polyester component or without the aromatic polycarbonate.
    Type: Grant
    Filed: July 26, 1999
    Date of Patent: June 27, 2000
    Assignee: Shell Oil Company
    Inventors: Deborah Ann Snell Tung, Kevin Rollick, John Michael Scoarste, Walter Francis Johnston
  • Compositions of polycondensed branched polyester polymers and aromatic polycarbonates, and the closed cell polymer foams made therefrom
    Patent number: 6025405
    Abstract: A foamable polyester composition comprising a combination of blowing agent and mixed polymer composition comprising:a) a semi-crystalline polyester composition comprising a polycondensed branched polyester polymer, andb) an aromatic polycarbonate polymer.The foamable composition has a high extrusion melt strength, and can pulled across a die without ripping, to form a continuous thermoformable closed cell polyester sheet. The foamed sheets have a uniform, fine, and closed cell morphology; and simultaneously are less dense but have a higher impact strength than comparable closed cell polymers made in only with linear polyesters as the polyester component or without the aromatic polycarbonate.
    Type: Grant
    Filed: July 26, 1999
    Date of Patent: February 15, 2000
    Assignee: Shell Oil Company
    Inventors: Deborah Ann Snell Tung, Kevin Rollick, John Michael Scoarste, Walter Francis Johnston