Patents by Inventor Christopher L. Hein

Christopher L. Hein 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: 8759428
    Abstract: A polycarbonate composition is disclosed comprising a polycarbonate resin, a 3-hydroxychromone dye, and an ultraviolet absorber selected from the group consisting of cyanoacrylates, malonates, and oxanilides. The combination of the 3-hydroxychromone dye and ultraviolet absorber results in a composition with good color retention and strong initial fluorescent emission intensity.
    Type: Grant
    Filed: August 22, 2007
    Date of Patent: June 24, 2014
    Assignee: Sabic Innovative Plastics IP B.V.
    Inventors: Christopher L. Hein, Cristina Cojocariu, Mohd S. Salleh
  • Patent number: 8617700
    Abstract: Disclosed herein is an article and thermoplastic composition comprising a polysiloxane-polycarbonate, optionally, a polycarbonate, and an X-ray contrast agent comprising X-ray scattering atoms having an atomic number of greater than or equal to 22, wherein a 3.2 mm thick article molded from the thermoplastic composition has a notched Izod impact strength of greater than or equal to about 620 J/m, when measured at a temperature of 0° C. according to ASTM D256-04, and has an Equivalent Al Thickness of greater than 0.51 mm, when irradiated with 50 kV X-ray radiation, and wherein melt volume rates determined under a load of 1.2 kg at 300° C. (ASTM D1238-04), a melt volume rate measured at a dwell time of 18 minutes increases relative to that measured at 6 minutes by less than or equal to 31%. A method of improving contrast in a polycarbonate composition, and specific articles are also disclosed.
    Type: Grant
    Filed: September 30, 2008
    Date of Patent: December 31, 2013
    Assignee: Sabic Innovative Plastics IP B.V.
    Inventors: Vandita Pai-Paranjape, Christopher L. Hein
  • Publication number: 20120052314
    Abstract: Multilayer articles comprising a coating layer comprising resorcinol arylate chain members bound to a support substrate via an optional intermediate tie layer. Adhesion between the layers of the multilayer article is enhanced by modifying at least a part of a surface of at least one of the layers in the multilayer article by a technique selected from at least one of: surface adhesive treatment, surface corona treatment, flame treatment, plasma surface treatment, vacuum deposition treatment, ionization radiation, chemical surface treatment, surface abrasion treatment, and surface texturing treating.
    Type: Application
    Filed: October 31, 2011
    Publication date: March 1, 2012
    Applicant: SABIC Innovative Plastics IP B.V.
    Inventors: Himanshu Asthana, Safwat Tadros, Paul Sybert, Christopher L. Hein, Edward Kung, David Rosendale, Xiangyang Li, Luca Saggese, Erich O. Teutsch, Glen Tryson, Hua Wang, Hongyi Zhou, Chris Hartshorn, Axel Grimm, Theodorus J.M. Timmerman, Jeroen Vervoort, Hendrik Cornelus Jacobus de Nooijer, Gert Boven, Beth Brister, Enamul Haque
  • Patent number: 8097668
    Abstract: A colorimetric composition is disclosed comprising a polycarbonate resin, a dye, and a thiopropionate. The composition undergoes an irreversible color shift to a darker color upon exposure to sunlight or UV radiation. Processes for producing and/or using such a colorimetric composition are also disclosed.
    Type: Grant
    Filed: August 27, 2007
    Date of Patent: January 17, 2012
    Assignee: Sabic Innovative Plastics IP B.V.
    Inventor: Christopher L. Hein
  • Patent number: 8057903
    Abstract: Multilayer articles comprising a coating layer comprising resorcinol arylate chain members bound to a support substrate via an optional intermediate tie layer. Adhesion between the layers of the multilayer article is enhanced by modifying at least a part of a surface of at least one of the layers in the multilayer article by a technique selected from at least one of: surface adhesive treatment, surface corona treatment, flame treatment, plasma surface treatment, vacuum deposition treatment, ionization radiation, chemical surface treatment, surface abrasion treatment, and surface texturing treating.
    Type: Grant
    Filed: July 31, 2002
    Date of Patent: November 15, 2011
    Assignee: Sabic Innovative Plastics IP B.V.
    Inventors: Himanshu Asthana, Safwat Tadros, Paul Sybert, Christopher L. Hein, Edward Kung, David Rosendale, Xiangyang Li, Luca Saggese, Erich O. Teutsch, Glen Tryson, Hua Wang, Hongyi Zhou, Chris Hartshorn, Axel Grimm, Theodorus J. M. Timmerman, Jeroen Vervoort, Hendrik Cornelus Jacobus De Nooijer, Gert Boven, Beth Brister, Enamul Haque
  • Publication number: 20100080972
    Abstract: Disclosed herein is an article and thermoplastic composition comprising a polysiloxane-polycarbonate, optionally, a polycarbonate, and an X-ray contrast agent comprising X-ray scattering atoms having an atomic number of greater than or equal to 22, wherein an article molded from the thermoplastic composition and having a thickness of 3.2 mm has a notched Izod impact (NII) strength of greater than or equal to about 620 J/m, when measured at a temperature of 0° C. according to ASTM D256-04, or a notched Izod impact strength of greater than or equal to about 409 J/m, when measured at a temperature of ?30° C. according to ASTM D256-04, wherein an article molded from the thermoplastic composition and having a thickness of 3.2 mm has an Equivalent Al Thickness of greater than 0.51 mm, when irradiated with 50 kV X-ray radiation, and wherein for melt volume rates of the thermoplastic composition determined under a load of 1.2 kg at a temperature of 300° C.
    Type: Application
    Filed: September 30, 2008
    Publication date: April 1, 2010
    Applicant: SABIC Innovative Plastics IP B.V.
    Inventors: Vandita PAI-PARANJAPE, Christopher L. HEIN
  • Publication number: 20090062424
    Abstract: A colorimetric composition is disclosed comprising a polycarbonate resin, a dye, and a thiopropionate. The composition undergoes an irreversible color shift to a darker color upon exposure to sunlight or UV radiation. Processes for producing and/or using such a colorimetric composition are also disclosed.
    Type: Application
    Filed: August 27, 2007
    Publication date: March 5, 2009
    Applicant: General Electric Company
    Inventor: Christopher L. Hein
  • Publication number: 20090054586
    Abstract: A polycarbonate composition is disclosed comprising a polycarbonate resin, a 3-hydroxychromone dye, and an ultraviolet absorber selected from the group consisting of cyanoacrylates, malonates, and oxanilides. The combination of the 3-hydroxychromone dye and ultraviolet absorber results in a composition with good color retention and strong initial fluorescent emission intensity.
    Type: Application
    Filed: August 22, 2007
    Publication date: February 26, 2009
    Applicant: General Electric Company
    Inventors: Christopher L. Hein, Cristina Cojocariu, Mohd Shamsul Mohd Salleh
  • Publication number: 20030176541
    Abstract: A molding composition has a bulk resin component formed from: a) 5 to 93 percent by weight of cycloaliphatic polyester resin such as poly(1,4-cyclohexane-dimethanol-1,4-dicarboxylate having a melt viscosity of at least 6000 poise; b) 5 to 93 percent by weight of an acrylate polymer or co-polymer; and c) 2 to 30 percent by weight of an impact modifier with a a shell comprising a repeating units derived from a C1-12 alkyl(meth)acrylate and a rubbery core having weatherability properties. The composition may further include a polycarbonate polymer or a styrene-acrylonitrile polymer as a phase compatabilizer as well as other conventional additives such as pigments, mineral fillers, antioxidants and the like. The composition has improved ductility, impact strength and weatherability.
    Type: Application
    Filed: March 3, 2003
    Publication date: September 18, 2003
    Inventors: Matthew R. Pixton, Olivier Seyvet, Dominique Daniel Arnould, Peter H. Th. Vollenberg, Paul Honigfort, Christopher L. Hein
  • Publication number: 20030175488
    Abstract: Multilayer articles comprising a coating layer comprising resorcinol arylate chain members bound to a support substrate via an optional intermediate tie layer. Adhesion between the layers of the multilayer article is enhanced by modifying at least a part of a surface of at least one of the layers in the multilayer article by a technique selected from at least one of: surface adhesive treatment, surface corona treatment, flame treatment, plasma surface treatment, vacuum deposition treatment, ionization radiation, chemical surface treatment, surface abrasion treatment, and surface texturing treating.
    Type: Application
    Filed: July 31, 2002
    Publication date: September 18, 2003
    Applicant: General Electric Company
    Inventors: Himanshu Asthana, Safwat Tadros, Paul Sybert, Christopher L. Hein, Edward Kung, David Rosendale, Xiangyang Li, Luca Saggese, Erich O. Teutsch, Glen Tryson, Hua Wang, Hongyi Zhou, Chris Hartshorn, Axel Grimm, Theodorus J.M. Timmerman, Jeroen Vervoort, Hendrik Cornelus Jacobus De Nooijer, Gert Boven, Beth Brister, Enamul Haque
  • Publication number: 20030146536
    Abstract: The use of a sulfonated polyester ionomer in a polyamide or polyester resin blend results in articles having enhanced dyeability, as demonstrated by an enhanced dye pick-up of at least 25% over resin blends without such sulfonated polyester ionomer.
    Type: Application
    Filed: November 20, 2002
    Publication date: August 7, 2003
    Applicant: General Electric Company
    Inventors: Nicolas J. Sunderland, Sandeep Dhawan, Christopher L. Hein