Patents by Inventor Lee CARVELL
Lee CARVELL 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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Publication number: 20240052101Abstract: Described herein is a polyamide composition comprising two polyamides and glass fiber, wherein one of the polyamides is a polyphthalamide formed by polycondensation from various monomers: dicarboxylic acid(s) with diamine(s) and/or amino acid(s), wherein at least one monomer contains a cyclohexyl group. It was surprisingly discovered that the polyamide composition has improved warpage and/or mold shrinkage properties, excellent mechanical performance and high Tg and/or Tm. Due to the excellent performance, the polyamide composition is suitable for molding and can be desirably incorporated into mobile electronic device applications.Type: ApplicationFiled: February 25, 2022Publication date: February 15, 2024Inventors: Lindsey ANDERSON, Vijay GOPALAKRISHNAN, Lee CARVELL
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Patent number: 11794417Abstract: Described herein are polyphenylene sulfide (“PPS”) polymers having excellent transparency to infrared (“IR”) radiation. It was surprisingly discovered that PPS polymer composition including PPS polymers having a selected metal ion (Ca, K, and Mg) concentration at least 400 parts per million by weight (“ppm”), had significantly increase IR transparency, relative to corresponding PPS polymer compositions including a PPS polymer having a selected metal ion concentration less than 400 ppm. Additionally, described herein are methods for laser welding the PPS polymer compositions.Type: GrantFiled: October 14, 2019Date of Patent: October 24, 2023Assignee: SOLVAY SPECIALTY POLYMERS USA, LLCInventors: DeeDee Smith, Jiqiang Xia, William E. Sattich, Lee Carvell
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Publication number: 20230242759Abstract: Described herein are polymer compositions (PC) including a polyamide (PA) and a poly(arylene sulfide) (PASP). The polyamide (PA) is a semi-aromatic polyamide derived from the polycondensation of an aliphatic diamine, a bis(aminoalkyl)cyclohexane, terephthalic acid, and, optionally, a cyclohexanedicarboxylic acid. It was surprisingly discovered that semi-aromatic polyamides derived from the cycloaliphatic diamine bis(aminoalkyl)cyclohexane or the specific combination of the cycloaliphatic diamine bis(aminoalkyl)cyclohexane and the cycloaliphatic dicarboxylic acid cyclohexanedicarboxylic acid provided for polymer compositions (PC) having improved retention of mechanical properties (e.g. tensile modulus and tensile strength) after aging in aqueous polyol solutions. It was also surprisingly discovered that incorporation of a nucleating agent in the polymer composition (PC) provided for significantly improved tensile strength retention after aging.Type: ApplicationFiled: May 5, 2021Publication date: August 3, 2023Applicant: SOLVAY SPECIALTY POLYMERS USA, LLCInventors: Matthew R. Vincent, Lee Carvell, Stéphane Jeol, Joel Flores
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Publication number: 20230203307Abstract: Described herein are polymer compositions (PC) including a polyamide (PA) and a reactive impact modifier. As explained in detail below, the polyamide (PA) is a semi-aromatic polyamide derived from the polycondensation of an aliphatic diamine, a bis(aminoalkyl)cyclohexane, terephthalic acid, and, optionally, a cyclohexanedicarboxylic acid. It was surprisingly discovered that semi-aromatic polyamides derived from the cycloaliphatic diamine bis(aminoalkyl)cyclohexane or the specific combination of the cycloaliphatic diamine bis(aminoalkyl)cyclohexane and the cycloaliphatic dicarboxylic acid cyclohexanedicarboxylic acid provided for polymer compositions (PC) having improved retention of mechanical properties (e.g. tensile strength and flexural strength) after aging in aqueous solutions, relative to analogous polyamides free of the bis(aminoalkyl)cyclohexane and the cyclohexanedicarboxylic acid.Type: ApplicationFiled: May 6, 2021Publication date: June 29, 2023Applicant: SOLVAY SPECIALTY POLYMERS USA, LLCInventors: Matthew R. Vincent, William Hamm, Lee Carvell, Linda M. Norfolk, Joel Flores, Stéphane Jeol, David McIlroy
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Publication number: 20230183454Abstract: Described herein are electrical articles comprising a polyamide (PA). As explained in detail below, the polyamide (PA) is a semi-aromatic polyamide derived from the polycondensation of an aliphatic diamine, terephthalic acid, and a bis(aminoalkyl)cyclohexane or a cyclohexanedicarboxylic acid. It was surprisingly discovered that incorporation of the cycloaliphatic diamine bis(aminoalkyl)cyclohexane or the cycloaliphatic dicarboxylic acid cyclohexanedicarboxylic acid into the polyamide provided for polymer compositions (PC) having significantly improved comparative tracking index (“CTI”) retention after heat aging, relative to analogous polyamides derived from only the aliphatic diamine and terephthalic acid. Due at least in part to the improved CTI retention, the polyamides (PA) can be desirably incorporated into articles that, during use, are exposed to elevated temperatures and benefit from high CTI performance.Type: ApplicationFiled: May 7, 2021Publication date: June 15, 2023Applicant: SOLVAY SPECIALTY POLYMERS USA, LLCInventors: Clay Plavcan, David McIlroy, Stéphane Jeol, Lee Carvell
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Publication number: 20230174716Abstract: Described herein are polymer compositions (PC) including a polyamide and carbon fiber. As explained in detail below, the polyamide (PA) is a semi-aromatic polyamide derived from the polycondensation of an aliphatic diamine, terephthalic acid, and a bis(aminoalkyl)cyclohexane or a cyclohexanedicarboxylic acid. It was surprisingly discovered that incorporation of the cycloaliphatic diamine bis(aminoalkyl)cyclohexane or the specific combination of the cycloaliphatic diamine bis(aminoalkyl)cyclohexane and the cycloaliphatic dicarboxylic acid cyclohexanedicarboxylic acid into the polyamide provided for carbon fiber filled polymer compositions (PC) having significantly improved mechanical properties (e.g. tensile modulus and strength) at elevated temperatures, as well as significantly improved retention of mechanical properties after heat aging, relative to analogous polyamides free of the bis(aminoalkyl)cyclohexane and the cyclohexanedicarboxylic acid.Type: ApplicationFiled: May 5, 2021Publication date: June 8, 2023Applicant: SOLVAY SPECIALTY POLYMERS USA, LLCInventors: David McIlroy, Matthew R. Vincent, Lee Carvell, Linda M. Norfolk
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Publication number: 20230174720Abstract: The present invention relates to a poly(arylene sulfide) (PAS) copolymer (P) comprising: at least one block of poly(arylene sulfide) (PAS) having a weight-average molecular weight (Mw) of at least 40,000 g/mol as determined by gel permeation chromatography, and at least one block of polyorganosiloxane (POS) having a weight-average molecular weight (Mw) of at most 5,000 g/mol as determined by gel permeation chromatography, wherein the weight ratio of PAS:POS is from 95:5 to 99.5:0.5.Type: ApplicationFiled: May 4, 2021Publication date: June 8, 2023Applicant: SOLVAY SPECIALTY POLYMERS USA, LLCInventors: Kelly D. Branham, Ryan Mondschein, Joel Pollino, Stéphane Jeol, Lee Carvell, William E. Sattich
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Publication number: 20210370614Abstract: Described herein are polyphenylene sulfide (“PPS”) polymers having excellent transparency to infrared (“IR”) radiation. It was surprisingly discovered that PPS polymer composition including PPS polymers having a selected metal ion (Ca, K, and Mg) concentration at least 400 parts per million by weight (“ppm”), had significantly increase IR transparency, relative to corresponding PPS polymer compositions including a PPS polymer having a selected metal ion concentration less than 400 ppm. Additionally, described herein are methods for laser welding the PPS polymer compositions.Type: ApplicationFiled: October 14, 2019Publication date: December 2, 2021Inventors: DeeDee SMITH, Jiqiang XIA, William E. SATTICH, Lee CARVELL
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Publication number: 20210292481Abstract: The invention pertains to a powdered material (M) comprising at least one poly(arylene sulfide) polymer, in particular to a method for manufacturing a three-dimensional (3D) object, using the powdered material (M) and to 3D object obtainable by selective sintering from this powdered polymer material (M).Type: ApplicationFiled: July 12, 2019Publication date: September 23, 2021Inventors: Ryan HAMMONDS, Lee CARVELL, Jason RICH, Stéphane JEOL, William E. SATTICH
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Publication number: 20210276252Abstract: The invention pertains to a method for manufacturing a three-dimensional (3D) object, using a powdered material (M) comprising at least one poly(arylene sulfide) polymer, in particular to a 3D object obtainable by selective sintering from this powdered polymer material (M).Type: ApplicationFiled: July 12, 2019Publication date: September 9, 2021Inventors: Ryan HAMMONDS, Lee CARVELL, Jason RICH, Stéphane JEOL, William E. SATTICH, Christopher WARD
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Patent number: 10829595Abstract: Described here are polyphenylene sulfide (“PPS”) polymers having significantly improved processability. It was surprisingly found that PPS polymers, terminated with specific end-capping agents in specific amounts, had significantly improved melt stability. Because of the significantly improved melt stability, the PPS polymers can be advantageously incorporated into melt processing techniques.Type: GrantFiled: February 6, 2018Date of Patent: November 10, 2020Assignee: SOLVAY SPECIALTY POLYMERS USA, LLCInventors: Hong Chen, Peter Mushenheim, Lee Carvell, Erik Nelson, Charles R. Hoppin
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Publication number: 20190241706Abstract: Described here are polyphenylene sulfide (“PPS”) polymers having significantly improved processability. It was surprisingly found that PPS polymers, terminated with specific end-capping agents in specific amounts, had significantly improved melt stability. Because of the significantly improved melt stability, the PPS polymers can be advantageously incorporated into melt processing techniques.Type: ApplicationFiled: February 6, 2018Publication date: August 8, 2019Inventors: Hong CHEN, Peter MUSHENHEIM, Lee CARVELL, Erik NELSON, Charles R. HOPPIN
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Patent number: 9289955Abstract: The present techniques provide multi-layer plastic structures and methods for making such. The multi-layer plastic structures include an inner surface made from a polyolefin resin, and resistant to environmental stress cracking, and an outer surface that includes a styrenic copolymer. The outer surface has a kinetic coefficient of friction with itself of 0.42 and a static coefficient of friction with itself of 0.44.Type: GrantFiled: August 23, 2012Date of Patent: March 22, 2016Assignees: Chevron Phillips Chemical Company LP, Silgan Holdings, Inc.Inventors: Lee A. Carvell, Mark Wanderlich, Susan L. Banovic, James Jalutkewicz, Charles E. Rees, Michael A. Smith
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Publication number: 20120311971Abstract: The present techniques provide multi-layer plastic structures and methods for making such. The multi-layer plastic structures include an inner surface made from a polyolefin resin, and resistant to environmental stress cracking, and an outer surface that includes a styrenic copolymer. The outer surface has a kinetic coefficient of friction with itself of 0.42 and a static coefficient of friction with itself of 0.44.Type: ApplicationFiled: August 23, 2012Publication date: December 13, 2012Applicants: Silgan Holdings, Inc, Chevron Phillips Chemical Company LPInventors: Lee A. Carvell, Mark Wanderlich, Susan L. Banovic, James Jalutkewicz, Charles E. Rees, Michael A. Smith
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Patent number: 8263198Abstract: The present techniques provide multi-layer plastic structures and methods for making such. The multi-layer plastic structures include an inner surface made from a polyolefin resin, and resistant to environmental stress cracking, and an outer surface that includes a styrenic copolymer. The outer surface has a kinetic coefficient of friction with itself of 0.42 and a static coefficient of friction with itself of 0.44.Type: GrantFiled: September 26, 2007Date of Patent: September 11, 2012Assignees: Chevron Phillips Chemical Company LP, Silgan Holdings, Inc.Inventors: Lee A. Carvell, Mark Wanderlich, Susan L. Banovic, James Jalutkewicz, Charles E. Rees, Michael A. Smith
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Publication number: 20090081397Abstract: The present techniques provide multi-layer plastic structures and methods for making such. The multi-layer plastic structures include an inner surface made from a polyolefin resin, and resistant to environmental stress cracking, and an outer surface that includes a styrenic copolymer. The outer surface has a kinetic coefficient of friction with itself of 0.42 and a static coefficient of friction with itself of 0.44.Type: ApplicationFiled: September 26, 2007Publication date: March 26, 2009Inventors: Lee A. Carvell, Mark Wanderlich, Susan L. Banovic, James Jalutkewicz, Charles E. Rees, Michael A. Smith
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Patent number: 6905568Abstract: A process for reducing the haze of extrusions of clear polymeric blends containing styrene-butadiene copolymer and a polymer immiscible therewith. An assembly of extrusion layers in which a layer of clear polymeric blends containing styrene/butadiene copolymer and a polymer immiscible therewith is overlayered with layers of clear material that provides a smooth extruded surface.Type: GrantFiled: June 19, 2003Date of Patent: June 14, 2005Assignee: Phillips Petroleum CompanyInventors: Mark D. Hanes, Lee A. Carvell
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Publication number: 20040115381Abstract: Embodiments include articles without plasticizers, having improved clarity, kink resistance, flexibility, melt fracture and die lines. Manufacturing may be conducted with materials comprising polymodal tapered polymers prepared from copolymerizing at least one monovinyl aromatic monomer and at least one conjugated diene monomer followed by coupling with at least one coupling agent.Type: ApplicationFiled: December 12, 2002Publication date: June 17, 2004Applicant: Chevron Phillips Chemical Company, LPInventors: Justin L. Harris, Shawn R. Kennedy, Jianxin J. Kuang, Mark Hanes, William W. Potter, Nathan E. Stacy, Lee A. Carvell, Timothy E. Rigdon, Larry L. Nash
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Publication number: 20030215656Abstract: A process for reducing the haze of extrusions of clear polymeric blends containing styrene-butadiene copolymer and a polymer immiscible therewith. An assembly of extrusion layers in which a layer of clear polymeric blends containing styrene/butadiene copolymer and a polymer immiscible therewith is overlayered with layers of clear material that provides a smooth extruded surface.Type: ApplicationFiled: June 19, 2003Publication date: November 20, 2003Applicant: Phillips Petroleum CompanyInventors: Mark D. Hanes, Lee A. Carvell