Patents by Inventor Stephen Sankey
Stephen Sankey 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: 20230340219Abstract: A breathable, heat-sealable, composite film comprising substrate layer (A), a primer coating layer (B) disposed on the substrate layer, and a heat-sealable coating layer (C) disposed on the primer coating layer is provided, wherein (i) said substrate layer (A) comprises a polyester comprising monomeric units derived from one or more diol(s) and one or more dicarboxylic acid(s); (ii) said primer coating layer (B) comprises a cross-linked sulfopolyester; and (iii) said heat-sealable coating layer (C) comprises a first copolyester.Type: ApplicationFiled: August 20, 2021Publication date: October 26, 2023Applicant: Dupont Teijin Films U.S. Limited PartnershipInventors: Stephen Sankey, David Turner, John Hobaugh, Megan Moaburn, Stephen K. Franzyshen, Stephen Jones
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Publication number: 20230278321Abstract: A thermoformable biaxially oriented coextruded polyester film comprising a copolyester base layer B, a first polyester outer layer A1 and a second polyester outer layer A2, wherein said outer layers are disposed on opposite surfaces of said base layer, and wherein: (i) said base layer B comprises a copolyester derived from terephthalic acid (TA) and a second aromatic dicarboxylic acid and one or more diol(s), wherein said second aromatic dicarboxylic acid is present in the copolyester in an amount of from about 5 to about 20 mol % of the acid fraction of the copolyester; (ii) the polyester of each of said outer layers A1 and A2 is selected from polyethylene terephthalate (PET); and (iii) the thickness of the base layer constitutes at least 90% of the total thickness of the coextruded multi-layer polyester film.Type: ApplicationFiled: May 16, 2023Publication date: September 7, 2023Applicant: DuPont Teijin Films U.S. Limited PartnershipInventors: David Turner, Stephen Sankey, Louise Taylor, Stephen Jones
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Patent number: 11701869Abstract: A thermoformable biaxially oriented coextruded polyester film comprising a copolyester base layer B, a first polyester outer layer A1 and a second polyester outer layer A2, wherein said outer layers are disposed on opposite surfaces of said base layer, and wherein: (i) said base layer B comprises a copolyester derived from terephthalic acid (TA) and a second aromatic dicarboxylic acid and one or more diol(s), wherein said second aromatic dicarboxylic acid is present in the copolyester in an amount of from about to 5 about 20 mol % of the acid fraction of the copolyester; (ii) the polyester of each of said outer layers A1 and A2 is selected from polyethylene terephthalate (PET); and (iii) the thickness of the base layer constitutes at least 90% of the total thickness of the coextruded multi-layer polyester film.Type: GrantFiled: November 13, 2018Date of Patent: July 18, 2023Assignee: DuPont Teijin Films U.S. Limited PartnershipInventors: David Turner, Stephen Sankey, Louise Taylor, Stephen Jones
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Publication number: 20220367973Abstract: Use of a copolyester film in the manufacture of a lithium-ion wet cell battery comprising an anode, a cathode and an electrolyte, wherein the copolyester film comprises a copolyester which comprises repeating units derived from a diol, a dicarboxylic acid and a poly(alkylene oxide)glycol.Type: ApplicationFiled: September 29, 2020Publication date: November 17, 2022Applicant: DuPont Teijin Films U.S. Limited PartnershipInventors: Stephen Sankey, Stephen Jones, Lucien Schosseler, Megan Todd, David Turner
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Publication number: 20220204688Abstract: A process for preparing a copolyester comprising repeating units derived from (i) at least one aliphatic glycol, (ii) at least one aromatic dicarboxylic acid, and (iii) at least one aliphatic dicarboxylic acid, wherein the aliphatic dicarboxylic acid constitutes a proportion of the acid fraction of the copolyesterType: ApplicationFiled: April 20, 2020Publication date: June 30, 2022Applicant: DuPont Teijin Films U.S. Limietd PartnershipInventors: Stephen Sankey, Stephen Jones, David Turner
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Publication number: 20210024688Abstract: An optionally oriented copolyester film comprising a copolyester which comprises repeating units derived from an aliphatic diol, an aromatic dicarboxylic acid and a poly(alkylene oxide), wherein the copolyester film further comprises lithium ions, and wherein the film has a thickness of no more than about 25 ?m. The copolyester film is suitable for use a separator in a lithium-ion rechargeable battery.Type: ApplicationFiled: March 28, 2019Publication date: January 28, 2021Applicant: DuPont Teijin Films U.S. Limited PartnershipInventors: Stephen Jones, Stephen Sankey, Lucien Schosseler, Megan Todd, David Turner
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Publication number: 20200391491Abstract: A thermoformable biaxially oriented coextruded polyester film comprising a copolyester base layer B, a first polyester outer layer A1 and a second polyester outer layer A2, wherein said outer layers are disposed on opposite surfaces of said base layer, and wherein: (i) said base layer B comprises a copolyester derived from terephthalic acid (TA) and a second aromatic dicarboxylic acid and one or more diol(s), wherein said second aromatic dicarboxylic acid is present in the copolyester in an amount of from about to 5 about 20 mol % of the acid fraction of the copolyester; (ii) the polyester of each of said outer layers A1 and A2 is selected from polyethylene terephthalate (PET); and (iii) the thickness of the base layer constitutes at least 90% of the total thickness of the coextruded multi-layer polyester film.Type: ApplicationFiled: November 13, 2018Publication date: December 17, 2020Applicant: DuPont Teijin Films U.S. Limited PartnershipInventors: David Turner, Stephen Sankey, Louise Taylor, Stephen Jones
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Patent number: 10022562Abstract: We disclose a radiotherapy apparatus with a dose verification system in which the portal image is displayed against a background of a better-quality image diagnostic image, such as a two-dimensional radiograph, an ultrasound image, or a section taken from a three-dimensional magnetic-resonance image, cone-beam CT image, or the like.Type: GrantFiled: October 9, 2015Date of Patent: July 17, 2018Assignee: ELEKTA LIMITEDInventor: Stephen Sankey
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Publication number: 20160114191Abstract: We disclose a radiotherapy apparatus with a dose verification system in which the portal image is displayed against a background of a better-quality image diagnostic image, such as a two-dimensional radiograph, an ultrasound image, or a section taken from a three-dimensional magnetic-resonance image, cone-beam CT image, or the like.Type: ApplicationFiled: October 9, 2015Publication date: April 28, 2016Inventor: Stephen Sankey
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Publication number: 20060269767Abstract: A heat-scalable, composite film said film comprising a polymeric substrate layer having a first and second surface and disposed on a surface of the substrate layer a water-soluble barrier layer, wherein (i) the substrate layer has one or more venting means therein; and (ii) the thickness of the barrier layer is from about 0.05 to about 40 ?m; a process for the manufacture thereof; and use thereof as a self-venting film in the packaging of an ovenable meal.Type: ApplicationFiled: July 16, 2004Publication date: November 30, 2006Inventors: Stephen Sankey, Ken Evans, Pierre Moussalli, Stephen Franzyshen, David Voisin
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Publication number: 20060165958Abstract: A breathable, heat-sealable, composite film comprising a perforated polymeric substrate layer having a first and second surface and disposed on a surface of the substrate layer an unperforated barrier layer wherein: (i) the thickness of the unperforated barrier layer is no more than about 12 pm; and (ii) the perforated substrate layer has a degree of perforation of from about 0.1 to about 78%, wherein the perforations have an average diameter of between 0.05 and 1.5 mm; and a process for the production thereof, suitable for use in the packaging of freshly cut plants such as flowers, vegetables, fruits and salads.Type: ApplicationFiled: July 16, 2004Publication date: July 27, 2006Inventors: Stephen Sankey, Ken Evans, Pierre Moussalli, Stephen Franzyshen, David Voisin
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Publication number: 20060065749Abstract: The use of a multilayer film to store or retrieve information, said information being correlated to the multilayer structure of the film, and said multilayer film comprising at least two different types of layer, wherein each type of layer exhibits a different optical property and wherein the multilayer film comprises a plurality of layers of each of at least two of the different types of layer; a method of storing information, a method of retrieving stored information and a method of protecting against counterfeiting or fraud, which method utilises said multilayer film.Type: ApplicationFiled: February 22, 2001Publication date: March 30, 2006Inventors: Stephen Sankey, Julia Friend
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Publication number: 20050249906Abstract: A heat-sealable polymeric film includes a substrate layer of polymeric material having on a surface thereof a heat-sealable coating layer. The layer includes a copolyester having a degree of crystallinity of at least 5%, and is less than 8 ?m in thickness. The copolyester consists essentially of repeat units of one or more aromatic dicarboxylic acids, one or more aliphatic dicarboxylic acids, and a stoichiometric amount of a glycol component consisting of one or more glycols selected from the group consisting of aliphatic glycols and cycloaliphatic glycols.Type: ApplicationFiled: June 16, 2005Publication date: November 10, 2005Inventors: Stephen Sankey, Kenneth Evans, Mark Hodgson
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Publication number: 20050106342Abstract: An open-ended tube comprising walls of a heat-sealable multi-layer polymeric film, wherein said film comprises an outer shrinkable substrate layer and an inner heat-sealable layer, wherein said substrate layer has a degree of shrinkage in the longitudinal dimension of the tube of about 0% to about 50% over the temperature range 55 to 100° C., and a degree of shrinkage in the transverse dimension of the tube of 5 to about 70% over the temperature range 55 to 100° C.; and use thereof in the manufacture of packaging for a container suitable as a receptable for a ready-prepared ovenable meal.Type: ApplicationFiled: January 21, 2003Publication date: May 19, 2005Inventors: Mark Dawes, Gary Rhoades, Stephen Sankey