Patents by Inventor Edwin B. Townsend
Edwin B. Townsend 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: 7452919Abstract: A method of manufacturing an improved clarity, low haze, low melt flow rate homopolymer polypropylene and thermoformed parts therefrom using an additive package such that the additive package alone provides the improved qualities, and process adjustments at the thermoforming stage are not required. The additive package does not contain a phosphite antioxidant, and the homopolymer polypropylene is either virgin material or virgin material mixed with at least 25 percent reground homopolymer polypropylene of the improved formulation described herein and combined with the improved clarity additive package.Type: GrantFiled: May 27, 2004Date of Patent: November 18, 2008Assignee: Sunoco, Inc. (R&M)Inventors: Thomas Gallagher, Edwin B. Townsend, IV
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Patent number: 6992146Abstract: A process is provided for the production of a very low melt viscosity (high melt flow index) polymer resin, suitable for use in spunbond or meltblown processing. According to the process of the current invention, a high melt viscosity (low melt flow index) resin is subjected to post-reactor molecular weight alteration by extrusion with a chemical prodegradant. The process produces a very low melt viscosity resin that can be used in spunbond or meltblown processing without further treatment to reduce the average molecular weight of the resin. Further, the very low melt viscosity resins produced according to the process of the current invention contain very little or no residual prodegradant.Type: GrantFiled: November 29, 2004Date of Patent: January 31, 2006Assignee: Sunoco Inc. (R&M)Inventors: Kimberly Miller McLoughlin, Edwin B. Townsend, IV, John A. Boettger, Gary R. Tarr, Theodore Gabor
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Patent number: 6979708Abstract: Synthetic hydrotalcites of the general formula [M2+1?xM3+x(OH)2]x+[An?x/n.mH2O]x? where M2+ is a divalent cation, M3+ is a trivalent cation and An? is an organic anion selected from straight chain carboxylates of C16-C18 acids, carboxylates of aromatic acids, carboxylates of acrylic acid, unsaturated carboxylates of methacrylic acid and unsaturated carboxylates of vinylacetic acid are disclosed, along with methods of synthesis and uses.Type: GrantFiled: August 23, 2001Date of Patent: December 27, 2005Assignee: Sunoco, Inc. (R&M)Inventors: Masaki Fujii, George R. Gallaher, Jr., Sehyun Kim, Steven J. Monaco, Edwin B. Townsend, IV, Gwendolyn Hawk, Thomas S. Brima
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Patent number: 6855777Abstract: A process is provided for the production of a very low melt viscosity (high melt flow index) polymer resin, suitable for use in meltblown processing. According to the process of the current invention, a high melt viscosity (low melt flow index) resin is subjected to post-reactor molecular weight alteration by extrusion with a chemical prodegradant. The process produces a very low melt viscosity resin that can be used in meltblown processing without further treatment to reduce the average molecular weight of the resin. Further, the very low melt viscosity resins produced according to the process of the current invention contain very little or no residual prodegradant.Type: GrantFiled: August 22, 2002Date of Patent: February 15, 2005Assignee: Sunoco, Inc. (R&M)Inventors: Kimberly M. McLoughlin, Edwin B. Townsend, IV, John A. Boettger, Gary R. Tarr, Theodore Gabor
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Patent number: 6846870Abstract: Synthetic hydrotalcites of the general formula [M2+1-xM3+x(OH)2]x+[An?x/n·mH2O]x? where M2+ is a divalent cation, M3+ is a trivalent cation and An? is an organic anion selected from straight chain carboxylates of C16-C18 acids, carboxylates of aromatic acids, carboxylates of acrylic acid, unsaturated carboxylates of methacrylic acid, unsaturated carboxylates of vinylacetic acid and C2 and higher organic acids containing heteroatoms such as nitrogen, phosphorous, sulfur and halogens are disclosed, along with methods of synthesis and uses.Type: GrantFiled: January 11, 2002Date of Patent: January 25, 2005Assignee: Sunoco, Inc. (R&M)Inventors: Gwendolyn Hawk, Masaki Fujii, George R. Gallaher, Jr., Sehyun Kim, Edwin B. Townsend, IV, Thomas S. Brima
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Publication number: 20040236001Abstract: Method of manufacturing inorganic polymer hybrids with improved mechanical properties and even dispersion of the inorganic material in the hybrids. Nanoscale exfoliation of inorganic materials having layered structures is induced, and said inorganic materials are combined with an emulsion comprising one or more molten polymers. The method provides nanoscale dispersion of inorganic material throughout the emulsion of one or more polymers without the use of compatibilizers.Type: ApplicationFiled: January 11, 2002Publication date: November 25, 2004Inventors: Thomas S. Brima, Masaki Fujii, Seyhun Kim, George R. Gallaher, Edwin B. Townsend, Kimberly M. McLoughlin
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Patent number: 6812273Abstract: Method of manufacturing inorganic polymer hybrids with improved mechanical properties and even dispersion of the inorganic material in the hybrids. Nanoscale exfoliation of inorganic materials having layered structures is induced, and said inorganic materials are combined with an emulsion comprising one or more molten polymers. The method provides nanoscale dispersion of inorganic material throughout the emulsion of one or more polymers without the use of compatibilizers.Type: GrantFiled: January 11, 2002Date of Patent: November 2, 2004Assignee: Sunoco, Inc.Inventors: Thomas S. Brima, Masaki Fujii, Seyhun Kim, George R. Gallaher, Jr., Edwin B. Townsend, IV, Kimberly M. McLoughlin
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Patent number: 6787066Abstract: The present invention is a stabilizing system for improving the melt viscosity of polyolefin resin during fiber processing. The addition of a liquid phosphite melt processing stabilizer to polypropylene homopolymer powder improves processing stability during spinning. The present invention covers spraying the liquid phosphite onto the powder along with octadecyl 3,5-di-tert-butyl-4-hydroxyhydrocinnamate which is applied via mineral oil solution in a steamer.Type: GrantFiled: November 16, 2001Date of Patent: September 7, 2004Assignee: Sunoco Inc (R&M)Inventors: Kimberly Miller McLoughlin, Edwin B. Townsend, Victor M. DiNardo
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Publication number: 20040171724Abstract: The present invention provides polyolefin household articles exhibiting enhanced stain resistance. The household articles according to the current invention include housewares, such as bowls, cups, containers and utensils, as well as, components for household appliances such as: dishwashers, washing machines and refrigerators. The household articles according to the current invention comprise a polypropylene homopolymer or impact copolymer having enhanced resistance to staining on contact with food or other articles soiled with food. The articles according to the current invention attained enhanced stain resistance through a combination of control of the properties of the propylene polymers and balance of additives.Type: ApplicationFiled: September 29, 2003Publication date: September 2, 2004Inventors: Steven D. Seip, Edwin B. Townsend, Sehyun Kim, Leslie A. Bockman
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Patent number: 6777470Abstract: The present invention provides additive packages for polyolefins The additive packages of the present invention comprise at least one non-phenolic antioxidant and a hindered amine light stabilizer. The additive packages may contain other additives as needed, and may optionally include an acid scavenger. Articles made from the resultant polymers, such as radiator surge tanks, exhibit enhanced stain and discoloration resistance upon exposure to high temperatures and harsh chemicals such as those experienced in “under the hood” spaces of modern automobiles.Type: GrantFiled: May 29, 2001Date of Patent: August 17, 2004Assignee: Sunoco, Inc. (R&M)Inventors: Steven David Seip, Sharon Edwards Thompson, Edwin B. Townsend, IV
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Publication number: 20040039130Abstract: A process is provided for the production of a very low melt viscosity (high melt flow index) polymer resin, suitable for use in meltblown processing. According to the process of the current invention, a high melt viscosity (low melt flow index) resin is subjected to post-reactor molecular weight alteration by extrusion with a chemical prodegradant. The process produces a very low melt viscosity resin that can be used in meltblown processing without further treatment to reduce the average molecular weight of the resin. Further, the very low melt viscosity resins produced according to the process of the current invention contain very little or no residual prodegradant.Type: ApplicationFiled: August 22, 2002Publication date: February 26, 2004Inventors: Kimberly M. McLoughlin, Edwin B. Townsend, John A. Boettger, Gary R. Tarr, Theodore Gabor
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Publication number: 20030114699Abstract: Synthetic hydrotalcites of the general formulaType: ApplicationFiled: January 11, 2002Publication date: June 19, 2003Applicant: Aristech Chemical CorporationInventors: Thomas S. Brima, Masaki Fujii, George R. Gallaher, Sehyun Kim, Edwin B. Townsend, Gwendolyn Hawk
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Publication number: 20030102462Abstract: The present invention is a stabilizing system for improving the melt viscosity of polyolefin resin during fiber processing. The addition of a liquid phosphite melt processing stabilizer to polypropylene homopolymer powder improves processing stability during spinning. The present invention covers spraying the liquid phosphite onto the powder along with octadecyl 3,5-di-tert-butyl-4-hydroxyhydrocinnamate which is applied via mineral oil solution in a steamer.Type: ApplicationFiled: November 16, 2001Publication date: June 5, 2003Inventors: Kimberly Miller McLoughlin, Edwin B. Townsend, Victor M. DiNardo
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Publication number: 20030078445Abstract: Synthetic hydrotalcites of the general formulaType: ApplicationFiled: August 23, 2001Publication date: April 24, 2003Inventors: Masaki Fujii, George R. Gallaher, Sehyun Kim, Steven J. Monaco, Edwin B. Townsend, Thomas S. Brima, Gwendolyn Hawk
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Publication number: 20030060543Abstract: The present invention provides additive packages for polyolefins The additive packages of the present invention comprise at least one non-phenolic antioxidant and a hindered amine light stabilizer. The additive packages may contain other additives as needed, and may optionally include an acid scavenger. Articles made from the resultant polymers, such as radiator surge tanks, exhibit enhanced stain and discoloration resistance upon exposure to high temperatures and harsh chemicals such as those experienced in “under the hood” spaces of modem automobiles.Type: ApplicationFiled: May 29, 2001Publication date: March 27, 2003Inventors: Steven David Seip, Sharon Edwards Thompson, Edwin B. Townsend