Patents by Inventor Robert William Seymour

Robert William Seymour 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).

  • Publication number: 20220227993
    Abstract: The present disclosure relates to recyclable extrusion blow molded articles made from blends of recycled PET and copolyester compositions which comprise residues of terephthalic acid, neopentyl glycol (NPG), 1,4-cyclohexanedimethanol (CHDM), ethylene glycol (EG), and/or 2,2,4,4-tetramethyl-1,3-cyclobutanediol residues, in certain compositional ranges that are <4 mm thickness, have a high level of recycled PET content, have low haze and are recyclable in a PET stream.
    Type: Application
    Filed: May 8, 2020
    Publication date: July 21, 2022
    Applicant: Eastman Chemical Company
    Inventors: Mark Allan Treece, Michael Gage Armstrong, Robert William Seymour
  • Publication number: 20220213263
    Abstract: The present disclosure relates to recyclable molded articles made from blends of recycled PET and copolyester compositions which comprise residues of terephthalic acid, neopentyl glycol (NPG), 1,4-cyclohexanedimethanol (CHDM), ethylene glycol (EG), and/or 2,2,4,4-tetramethyl-1,3-cyclobutanediol residues, in certain compositional ranges that are thick-walled (>4 mm), have a high level of recycled PET content, have low haze and are recyclable in a PET stream.
    Type: Application
    Filed: May 8, 2020
    Publication date: July 7, 2022
    Applicant: Eastman Chemical Company
    Inventors: Mark Allan Treece, Robert William Seymour
  • Publication number: 20130041053
    Abstract: Disclosed is a process for producing copolyesters with high levels of recycled content. Scrap or post-consumer poly(ethylene terephthalate) is depolymerized by methanolysis or glycolysis to produce a purified, recycled dimethyl terephthalate which can be repolymerized with 2 or more diols. The polyesters of this invention have physical properties and an appearance that is similar to polyesters prepared from virgin monomers. In addition to dimethyl terephthalate, the polyesters can be prepared from recycled ethylene glycol recovered from depolymerization of poly(ethylene terephthalate) and/or 1,4-cyclo-hexanedimethanol prepared by hydrogenation of recycled dimethyl terephthalate or recovered from depolymerized polyester mixtures.
    Type: Application
    Filed: August 12, 2011
    Publication date: February 14, 2013
    Applicant: EASTMAN CHEMICAL COMPANY
    Inventors: Thomas Joseph Pecorini, Eric Jon Moskala, David Lange, Robert William Seymour
  • Patent number: 7834127
    Abstract: Disclosed are amorphous copolyesters having an inherent viscosity (IV) of about 0.5 to 1.1 dL/g measured at a temperature of 25° C. at 0.5 g/dL concentration in a solvent mixture of symmetric tetrachloroethane and phenol having a weight ratio of symmetric tetrachloroethane to phenol of 2:3 comprising (1) a diacid component comprising about 90 to 100 mole percent terephthalic acid residues and 0 to about 10 mole percent isophthalic acid residues; and (2) a diol component comprising about 10 to 70 mole percent 1,4-cyclohexanedimethanol residues and about 90 to 30 mole percent neopentyl glycol residues; wherein the amorphous copolyesters comprises 100 mole percent diacid component and 100 mole percent diol component. The amorphous copolyesters are useful in the manufacture or fabrication of medical devices which have improved resistance to degradation upon exposure to lipids, as a profile produced by profile extrusion and as an injection molded article.
    Type: Grant
    Filed: February 23, 2006
    Date of Patent: November 16, 2010
    Assignee: Eastman Chemical Company
    Inventors: Sam Richard Turner, Jonathan Terrill Milburn, Robert William Seymour, Kab Sik Seo
  • Patent number: 7118799
    Abstract: This invention relates to thermoplastic article having one or more decorative materials embedded therein which is obtained by applying heat and pressure to one or more laminates wherein at least one of said laminates comprises, in order, (1) an upper sheet material; (2) one or more decorative materials; and (3) a lower sheet material; wherein the upper and lower sheet materials are formed from a polyester/aromatic polycarbonate blend.
    Type: Grant
    Filed: November 22, 2002
    Date of Patent: October 10, 2006
    Assignee: Eastman Chemical Company
    Inventors: Emmett Dudley Crawford, Robert William Seymour
  • Patent number: 7026027
    Abstract: Disclosed are amorphous copolyesters having an inherent viscosity (IV) of at least about 0.5 dL/g measured at a temperature of 25° C. at 0.5 g/dL concentration in a solvent mixture of symmetric tetrachloroethane and phenol having a weight ratio of symmetric tetrachloroethane to phenol of 2:3 comprising (1) a diacid component comprising about 90 to 100 mole percent terephthalic acid residues and 0 to about 10 mole percent isophthalic acid residues; and (2) a diol component comprising about 10 to 70 mole percent 1,4-cyclohexanedimethanol residues and about 90 to 30 mole percent neopentyl glycol residues; wherein the amorphous copolyesters comprises 100 mole percent diacid component and 100 mole percent diol component. The amorphous copolyesters are useful in the manufacture or fabrication of medical devices which have improved resistance to degradation upon exposure to lipids, as a profile produced by profile extrusion and as an injection molded article.
    Type: Grant
    Filed: March 24, 2004
    Date of Patent: April 11, 2006
    Assignee: Eastman Chemical Company
    Inventors: Sam Richard Turner, Jonathan Terrill Milburn, Robert William Seymour, Kab Sik Seo
  • Patent number: 6896966
    Abstract: This invention relates to thermoplastic article having one or more decorative materials on the surface thereof which is obtained by applying heat and pressure to a laminate wherein said thermoplastic article comprises (1) one or more decorative materials; and (2) an upper or lower sheet material; wherein the upper or lower sheet material is formed from a polyester/aromatic polycarbonate blend.
    Type: Grant
    Filed: November 22, 2002
    Date of Patent: May 24, 2005
    Assignee: Eastman Chemical Company
    Inventors: Emmett Dudley Crawford, Robert William Seymour
  • Publication number: 20040101678
    Abstract: This invention relates to thermoplastic article having one or more decorative materials embedded therein which is obtained by applying heat and pressure to one or more laminates wherein at least one of said laminates comprises, in order, (1) an upper sheet material; (2) one or more decorative materials; and (3) a lower sheet material; wherein the upper and lower sheet materials are formed from a polyester/aromatic polycarbonate blend.
    Type: Application
    Filed: November 22, 2002
    Publication date: May 27, 2004
    Inventors: Emmett Dudley Crawford, Robert William Seymour
  • Publication number: 20040101687
    Abstract: This invention relates to thermoplastic article having one or more decorative materials on the surface thereof which is obtained by applying heat and pressure to a laminate wherein said thermoplastic article comprises (1) one or more decorative materials; and (2) an upper or lower sheet material; wherein the upper or lower sheet material is formed from a polyester/aromatic polycarbonate blend.
    Type: Application
    Filed: November 22, 2002
    Publication date: May 27, 2004
    Inventors: Emmett Dudley Crawford, Robert William Seymour
  • Publication number: 20030060596
    Abstract: Disclosed are amorphous copolyesters having an inherent viscosity (IV) of at least about 0.4 dL/g measured at a temperature of 25° C. at 0.25 g/dl concentration in a solvent mixture of symmetric tetrachloroethane and phenol having a weight ratio of symmetric tetrachloroethane to phenol of 2:3 comprising (1) a diacid component consisting essentially of about 90 to 100 mole percent terephthalic acid residues and 0 to about 10 mole percent isophthalic acid residues; and (2) a diol component consisting essentially of about 10 to 70 mole percent 1,4-cyclohexanedimethanol residues and about 90 to 30 mole percent neopentyl glycol residues; wherein the amorphous copolyesters comprises 100 mole percent diacid component and 100 mole percent diol component. The amorphous copolyesters are useful in the manufacture or fabrication of medical devices which have improved resistance to degradation upon exposure to lipids, as a profile produced by profile extrusion and as an injection molded article.
    Type: Application
    Filed: July 15, 2002
    Publication date: March 27, 2003
    Inventors: Sam Richard Turner, Jonathan Terrill Milburn, Robert William Seymour, Kab Sik Seo