Patents by Inventor Duncan Henry MacKerron
Duncan Henry MacKerron 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: 20180358586Abstract: Improved light emission in OLEDs The invention relates to an organic light-emitting diode (OLED) system comprising a multi-layered structure having a semiconducting organic layer (12) sandwiched between first and second electrodes (3a, 3b); further comprising a barrier layer (6) interposed between the semiconducting organic layer and a polymer substrate (1) having formed an random nanopillar structure thereon having a pillar height dimension between 50 and 1000 nanometer and a pitch in a range of 50-1000 nanometer.Type: ApplicationFiled: December 8, 2016Publication date: December 13, 2018Inventors: Stephan Harkema, Duncan Henry MacKerron, Sami Sabik, Rajesh Mandamparambil
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Patent number: 9711758Abstract: An organic light-emitting diode (OLED) light source includes, in order: (i) a biaxially oriented polyester film substrate including light-scattering particles (P1); (ii) optionally an organic planarising coating layer (OPC1); (iii) optionally a barrier layer (B1); (iv) an organic planarising coating layer (OPC2) including light-scattering particles (P2); (v) optionally a barrier layer (B2); and (vi) a multi-layer light-emitting assembly including a first electrode, a light-emitting organic layer and a second electrode; wherein the OLED light source includes at least one of barrier layers (B1) and (B2).Type: GrantFiled: July 24, 2015Date of Patent: July 18, 2017Assignees: DUPONT TEIJIN FILMS U.S. LIMITED PARTNERSHIP, NEDERLANDSE ORGANISATIE VOOR TOEGPAST NATUURWETENSCHAPPELIJK ONDERZOEK TNOInventors: Duncan Henry Mackerron, Stephan Harkema, Ian Keith Alexander
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Publication number: 20170162828Abstract: An organic light-emitting diode (OLED) light source includes, in order: (i) a biaxially oriented polyester film substrate including light-scattering particles (P1); (ii) optionally an organic planarising coating layer (OPC1); (iii) optionally a barrier layer (B1); (iv) an organic planarising coating layer (OPC2) including light-scattering particles (P2); (v) optionally a barrier layer (B2); and (vi) a multi-layer light-emitting assembly including a first electrode, a light-emitting organic layer and a second electrode; wherein the OLED light source includes at least one of barrier layers (B1) and (B2).Type: ApplicationFiled: July 24, 2015Publication date: June 8, 2017Applicant: DUPONT TEIJIN FILMS U.S. LIMITED PARTNERSHIPInventors: DUNCAN HENRY MACKERRON, STEPHAN HARKEMA, IAN KEITH ALEXANDER
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Patent number: 9522983Abstract: A biaxially oriented composite film includes a polyester substrate supporting one or more coatings on one or both surfaces of said substrate, wherein the polyester substrate is a biaxially oriented film; wherein the one or more coatings is/are derived from a predominantly inorganic hardcoat coating composition including inorganic particles contained in a polymerisable predominantly inorganic matrix; and wherein the biaxially oriented composite film has been annealed at a temperature Ta (° C.) above Tg where Tg<Ta?Tg+100 (° C.) for a time t after thermal equilibrium where 1 hour ?t?72 hours. A method of making the film is provided.Type: GrantFiled: May 15, 2014Date of Patent: December 20, 2016Assignee: DUPONT TEIJIN FILMS U.S. LIMITED PARTNERSHIPInventors: Robert William Eveson, Andrew Nathan Hodgson, Duncan Henry MacKerron, Katsuyuki Hashimoto
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Publication number: 20140295174Abstract: A biaxially oriented composite film includes a polyester substrate supporting one or more coatings on one or both surfaces of said substrate, wherein the polyester substrate is a biaxially oriented film; wherein the one or more coatings is/are derived from a predominantly inorganic hardcoat coating composition including inorganic particles contained in a polymerisable predominantly inorganic matrix; and wherein the biaxially oriented composite film has been annealed at a temperature Ta (° C.) above Tg where Tg<Ta?Tg+100 (° C.) for a time t after thermal equilibrium where 1 hour ?t?72 hours. A method of making the film is provided.Type: ApplicationFiled: May 15, 2014Publication date: October 2, 2014Applicant: DuPont Teijin Films U.S. Limited PartnershipInventors: Robert William Eveson, Andrew Nathan Hodgson, Duncan Henry MacKerron, Katsuyuki Hashimoto
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Patent number: 8802226Abstract: A method of preventing or minimizing the formation of haze in a biaxially oriented polyester film during the annealing of said film above its glass transition temperature, said method comprising: (a) selecting a biaxially oriented polyester film having glass transition temperature (Tg (° C.Type: GrantFiled: February 9, 2007Date of Patent: August 12, 2014Assignee: Dupont Teijin Films U.S. Limited PartnershipInventors: Robert William Eveson, Andrew Nathan Hodgson, Duncan Henry MacKerron, Katsuyuki Hashimoto
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Publication number: 20140120377Abstract: A multi-layer biaxially oriented film comprising a first layer (A) comprising an aromatic polyester (a) and a second layer (B) comprising a polyolefin (b) having a melting point of from 230 to 290° C. wherein said polyolefin is a styrene polymer, and an adhesive interlayer (C) between a layer (A) and a layer (B), wherein said adhesive interlayer (C) comprises a tie-layer material (c) selected from anhydride-modified ethylene copolymers in which the proportion of anhydride present in the copolymer is no more than 3.0% by weight of the polymer, and in which the ethylene copolymer comprises one or more additional comonomers other than styrene.Type: ApplicationFiled: June 29, 2012Publication date: May 1, 2014Applicant: DuPont Teijin Films U.S. Limited PartnershipInventors: Duncan Henry MacKerron, Takeshi Ishida, John Francis, Maurice Kieran Looney
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Patent number: 8592028Abstract: The invention relates to A bi-axially stretched breathable film comprising a polymeric mixture, said polymeric mixture comprising based on the total weight of the polymeric mixture/—at least 50% of at least one polyether block copolymer; and —from 0.5 to less than 50% of at least one polyester. The invention also relates to a method to manufacture said film, and uses of said film. The invention also relates to a method for producing a bi-axially stretched breathable film comprising at least one polyether block copolymer.Type: GrantFiled: August 25, 2006Date of Patent: November 26, 2013Assignee: DuPont Teijin Films U.S. Limited PartnershipInventors: Lucien Schosseler, Alexis Grosrenaud, Duncan Henry MacKerron, Valery Rebizant
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Patent number: 8591998Abstract: A process in which a wound roll of biaxially oriented polyester film having a glass transition temperature (Tg (° C.)) is annealed at a temperature Ta (° C.) above Tg where Tg<Ta?Tg+100 (° C.) for a time t after thermal equilibrium where 1 hour?t?72 hours and cooled, for the purpose of improving the shrinkage of said polyester film.Type: GrantFiled: February 9, 2007Date of Patent: November 26, 2013Assignee: DuPont Teijin Films U.S. Limited PartnershipInventors: Duncan Henry MacKerron, Katsuyuki Hashimoto
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Publication number: 20110209901Abstract: A method of improving the flexibility of a coated polyester substrate for an electronic device comprising a coated polyester substrate layer and an electrode layer comprising conductive material, said method comprising: (a) providing a polyester film; and (b) disposing an organic/inorganic hybrid coating on one or both surfaces of said polyester film, wherein said coating is derived from a coating composition comprising a low molecular weight reactive component selected from monomeric acrylates and/or an unsaturated oligomeric component selected from acrylates, polyether acrylates, epoxy acrylates and polyester acrylates; a solvent; and inorganic particles, and optionally further comprising a photoinitiator.Type: ApplicationFiled: August 1, 2008Publication date: September 1, 2011Applicant: DUPONT TEIJIN FILMS U.S. LIMITED PARTNERSHIPInventors: William A. MacDonald, Duncan Henry MacKerron, Robert W. Eveson, Karl Rakos
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Publication number: 20100189998Abstract: A process in which a wound roll of biaxially oriented polyester film having a glass transition temperature (Tg (° C.)) is annealed at a temperature Ta (° C.) above Tg where Tg<Ta?Tg+100 (° C.) for a time t after thermal equilibrium where 1 hour?t?72 hours and cooled, for the purpose of improving the shrinkage of said polyester film.Type: ApplicationFiled: February 9, 2007Publication date: July 29, 2010Applicant: DuPont Teijin Films U.S. Limited PartnershipInventors: Duncan Henry MacKerron, Katsuyuki Hashimoto
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Publication number: 20090117362Abstract: The invention relates to A bi-axially stretched breathable film comprising a polymeric mixture, said polymeric mixture comprising based on the total weight of the polymeric mixture/—at least 50% of at least one polyether block copolymer; and—from 0.5 to less than 50% of at least one polyester. The invention also relates to a method to manufacture said film, and uses of said film. The invention also relates to a method for producing a bi-axially stretched breathable film comprising at least one polyether block copolymer.Type: ApplicationFiled: August 25, 2006Publication date: May 7, 2009Inventors: Lucien Schosseler, Alexis Grosrenaud, Duncan Henry MacKerron, Valery Rebizant
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Publication number: 20090011228Abstract: A method of preventing or minimising the formation of haze in a biaxially oriented polyester film during the annealing of said film above its glass transition temperature, said method comprising: (a) selecting a biaxially oriented polyester film having glass transition temperature (Tg (° C.Type: ApplicationFiled: February 9, 2007Publication date: January 8, 2009Applicant: DuPont Teijim Films U.S. Limited PartnershipInventors: Robert William Eveson, Andrew Nathan Hodgson, Duncan Henry MacKerron, Katsuyuki Hashimoto
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Patent number: 7255928Abstract: The use of multilayer film structure comprising at least two unfilled layers of polymeric material substantially devoid of opacifying agent and at least two filled layers of polymeric material wherein said filled layers comprise at least 5% by weight of opacifying agent for providing improved tear-resistance in an opaque polymeric film, particularly a polyester film.Type: GrantFiled: April 25, 2002Date of Patent: August 14, 2007Assignee: DuPont Teijin Films U.S. Limited PartnershipInventors: Duncan Henry MacKerron, Julia Elizabeth Friend
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Patent number: 7078105Abstract: A conformable oriented polymeric film comprising a layer of copolyester derived from: (i) one or more diol(s); (ii) an aromatic dicarboxylic acid; and (iii) one or more aliphatic dicarboxylic acid(s) of the general formula CnH2n(COOH)2 wherein n is 2 to 8, wherein the aromatic dicarboxylic acid is present in the copolyester in an amount of from 60 to 85 mole % based on the total amount of dicarboxylic acid components in the copolyester, wherein the copolyester is a random or alternating copolyester, and wherein after deformation by subjecting and maintaining the film to 7% strain, the stress within the film immediately after deformation dissipates to a residual value of less than 60% of the original value within 10 minutes of said deformation; and use thereof as a conformable medium for signage, advertising, graphic art and other display applications or as an overlaminate for such media.Type: GrantFiled: July 10, 2002Date of Patent: July 18, 2006Assignee: DuPont Teijin Films U.S. Limited PartnershipInventor: Duncan Henry MacKerron
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Publication number: 20040209094Abstract: A conformable oriented polymeric film comprising a layer of copolyester derived from: (i) one or more diol(s); (ii) an aromatic dicarboxylic acid; and (iii) one or more aliphatic dicarboxylic acid(s) of the general formula CnH2n(COOH)2 wherein n is 2 to 8, wherein the aromatic dicarboxylic acid is present in the copolyester in an amount of from 60 to 85 mole % based on the total amount of dicarboxylic acid components in the copolyester, wherein the copolyester is a random or alternating copolyester, and wherein after deformation by subjecting and maintaining the film to 7% strain, the stress within the film immediately after deformation dissipates to a residual value of less than 60% of the original value within 10 minutes of said deformation; and use thereof as a conformable medium for signage, advertising, graphic art and other display applications or as an overlaminate for such media.Type: ApplicationFiled: June 9, 2004Publication date: October 21, 2004Inventor: Duncan Henry MacKerron