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).
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Patent number: 8759428Abstract: 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: GrantFiled: August 22, 2007Date of Patent: June 24, 2014Assignee: Sabic Innovative Plastics IP B.V.Inventors: Christopher L. Hein, Cristina Cojocariu, Mohd S. Salleh
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Patent number: 8617700Abstract: 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: GrantFiled: September 30, 2008Date of Patent: December 31, 2013Assignee: Sabic Innovative Plastics IP B.V.Inventors: Vandita Pai-Paranjape, Christopher L. Hein
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Publication number: 20120052314Abstract: 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: ApplicationFiled: October 31, 2011Publication date: March 1, 2012Applicant: 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
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Patent number: 8097668Abstract: 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: GrantFiled: August 27, 2007Date of Patent: January 17, 2012Assignee: Sabic Innovative Plastics IP B.V.Inventor: Christopher L. Hein
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Patent number: 8057903Abstract: 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: GrantFiled: July 31, 2002Date of Patent: November 15, 2011Assignee: 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
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Publication number: 20100080972Abstract: 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: ApplicationFiled: September 30, 2008Publication date: April 1, 2010Applicant: SABIC Innovative Plastics IP B.V.Inventors: Vandita PAI-PARANJAPE, Christopher L. HEIN
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Publication number: 20090062424Abstract: 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: ApplicationFiled: August 27, 2007Publication date: March 5, 2009Applicant: General Electric CompanyInventor: Christopher L. Hein
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Publication number: 20090054586Abstract: 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: ApplicationFiled: August 22, 2007Publication date: February 26, 2009Applicant: General Electric CompanyInventors: Christopher L. Hein, Cristina Cojocariu, Mohd Shamsul Mohd Salleh
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Publication number: 20030176541Abstract: 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: ApplicationFiled: March 3, 2003Publication date: September 18, 2003Inventors: Matthew R. Pixton, Olivier Seyvet, Dominique Daniel Arnould, Peter H. Th. Vollenberg, Paul Honigfort, Christopher L. Hein
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Publication number: 20030175488Abstract: 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: ApplicationFiled: July 31, 2002Publication date: September 18, 2003Applicant: General Electric CompanyInventors: 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
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Publication number: 20030146536Abstract: 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: ApplicationFiled: November 20, 2002Publication date: August 7, 2003Applicant: General Electric CompanyInventors: Nicolas J. Sunderland, Sandeep Dhawan, Christopher L. Hein