Patents by Inventor Roger Lee Martin

Roger Lee Martin 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).

  • Patent number: 9062200
    Abstract: Polymer blends suitable for packaging are disclosed that include one or more impact modifiers; and one or more polyethylene terephthalate homopolymers or copolymers obtained by a melt phase polymerization using a catalyst system comprising aluminum atoms in an amount, for example, from about 3 ppm to about 60 ppm and one or more alkaline earth metal atoms, alkali metal atoms, or alkali compound residues in an amount, for example, from about 1 ppm to about 25 ppm, in each case based on the weight of the one or more polyethylene terephthalate homopolymers or copolymers The polymer blends disclosed exhibit improved low temperature toughness compared with blends made using polymers prepared with conventional catalyst systems.
    Type: Grant
    Filed: August 14, 2014
    Date of Patent: June 23, 2015
    Assignee: GRUPO PETROTEMEX, S.A. DE C.V.
    Inventors: Frederick Leslie Colhoun, Mark Edward Stewart, Stephen Weinhold, Richard Dalton Peters, Roger Lee Martin
  • Publication number: 20140357797
    Abstract: Polymer blends suitable for packaging are disclosed that include one or more impact modifiers; and one or more polyethylene terephthalate homopolymers or copolymers obtained by a melt phase polymerization using a catalyst system comprising aluminum atoms in an amount, for example, from about 3 ppm to about 60 ppm and one or more alkaline earth metal atoms, alkali metal atoms, or alkali compound residues in an amount, for example, from about 1 ppm to about 25 ppm, in each case based on the weight of the one or more polyethylene terephthalate homopolymers or copolymers The polymer blends disclosed exhibit improved low temperature toughness compared with blends made using polymers prepared with conventional catalyst systems.
    Type: Application
    Filed: August 14, 2014
    Publication date: December 4, 2014
    Inventors: Frederick Leslie CALHOUN, Mark Edward STEWART, Stephen WEINHOLD, Richard Dalton PETERS, Roger LEE MARTIN
  • Patent number: 8859681
    Abstract: Polymer blends suitable for packaging are disclosed that include one or more impact modifiers; and one or more polyethylene terephthalate homopolymers or copolymers obtained by a melt phase polymerization using a catalyst system comprising aluminum atoms in an amount, for example, from about 3 ppm to about 60 ppm and one or more alkaline earth metal atoms, alkali metal atoms, or alkali compound residues in an amount, for example, from about 1 ppm to about 25 ppm, in each case based on the weight of the one or more polyethylene terephthalate homopolymers or copolymers The polymer blends disclosed exhibit improved low temperature toughness compared with blends made using polymers prepared with conventional catalyst systems.
    Type: Grant
    Filed: August 31, 2011
    Date of Patent: October 14, 2014
    Assignee: Grupo Petrotemex, S.A. de C.V.
    Inventors: Frederick Leslie Colhoun, Mark Edward Stewart, Stephen Weinhold, Richard Dalton Peters, Roger Lee Martin
  • Publication number: 20130029068
    Abstract: Extrusion blow molded (EBM) articles comprising a polyester having a dicarboxylic acid component and a glycol component. The dicarboxlyic acid component comprises at least 90 mole % terephthalic acid residues. The glycol component comprises at least 88 mole % ethylene glycol residues and 7 to 12 mole % residues of a difunctional glycol such as, for example, 1,4-cyclohexanedimethanol. Such EBM articles can exhibit reduced haze, reduced sharkskin, and/or increased compatibility in PET recycling.
    Type: Application
    Filed: July 28, 2011
    Publication date: January 31, 2013
    Applicant: EASTMAN CHEMICAL COMPANY
    Inventors: Mark Allan Treece, Thomas Joseph Pecorini, Roger Lee Martin, Bryan Steven Bishop
  • Publication number: 20110318519
    Abstract: Polymer blends suitable for packaging are disclosed that include one or more impact modifiers; and one or more polyethylene terephthalate homopolymers or copolymers obtained by a melt phase polymerization using a catalyst system comprising aluminum atoms in an amount, for example, from about 3 ppm to about 60 ppm and one or more alkaline earth metal atoms, alkali metal atoms, or alkali compound residues in an amount, for example, from about 1 ppm to about 25 ppm, in each case based on the weight of the one or more polyethylene terephthalate homopolymers or copolymers The polymer blends disclosed exhibit improved low temperature toughness compared with blends made using polymers prepared with conventional catalyst systems.
    Type: Application
    Filed: August 31, 2011
    Publication date: December 29, 2011
    Applicant: GRUPO PETROTEMEX, S.A. DE C.V.
    Inventors: Frederick Leslie COLHOUN, Mark Edward Stewart, Stephen Weinhold, Richard Dalton Peters, Roger Lee Martin
  • Patent number: 8058360
    Abstract: Polymer blends suitable for packaging are disclosed that include one or more impact modifiers; and one or more polyethylene terephthalate homopolymers or copolymers obtained by a melt phase polymerization using a catalyst system comprising aluminum atoms in an amount, for example, from about 3 ppm to about 60 ppm and one or more alkaline earth metal atoms, alkali metal atoms, or alkali compound residues in an amount, for example, from about 1 ppm to about 25 ppm, in each case based on the weight of the one or more polyethylene terephthalate homopolymers or copolymers The polymer blends disclosed exhibit improved low temperature toughness compared with blends made using polymers prepared with conventional catalyst systems.
    Type: Grant
    Filed: June 1, 2007
    Date of Patent: November 15, 2011
    Assignee: Grupo Petrotemex, S.A. De C.V.
    Inventors: Frederick Leslie Colhoun, Mark Edward Stewart, Stephen Weinhold, Richard Dalton Peters, Roger Lee Martin
  • Publication number: 20080299344
    Abstract: Polymer blends suitable for packaging are disclosed that include one or more impact modifiers; and one or more polyethylene terephthalate homopolymers or copolymers obtained by a melt phase polymerization using a catalyst system comprising aluminum atoms in an amount, for example, from about 3 ppm to about 60 ppm and one or more alkaline earth metal atoms, alkali metal atoms, or alkali compound residues in an amount, for example, from about 1 ppm to about 25 ppm, in each case based on the weight of the one or more polyethylene terephthalate homopolymers or copolymers The polymer blends disclosed exhibit improved low temperature toughness compared with blends made using polymers prepared with conventional catalyst systems.
    Type: Application
    Filed: June 1, 2007
    Publication date: December 4, 2008
    Inventors: Frederick Leslie Colhoun, Mark Edward Stewart, Stephen Weinhold, Richard Dalton Peters, Roger Lee Martin