Patents Assigned to DuPont Teijin Films U.S. Limited Partnership
  • Publication number: 20190085216
    Abstract: A coextruded biaxially oriented composite film comprising a polyester substrate layer and disposed on one or both surfaces thereof a strippable sacrificial layer, wherein said strippable sacrificial layer comprises an ethylene-methacrylic acid (EMAA) copolymer.
    Type: Application
    Filed: September 12, 2018
    Publication date: March 21, 2019
    Applicant: DuPont Teijin Films U.S. Limited Partnership
    Inventors: ROBERT EVESON, Karl RAKOS, Damian Peter TUFFIN, Dominic HOY
  • Patent number: 10106706
    Abstract: A coextruded biaxially oriented composite film comprising a polyester substrate layer and disposed on one or both surfaces thereof a strippable sacrificial layer, wherein said strippable sacrificial layer comprises an ethylene-methacrylic acid (EMAA) copolymer.
    Type: Grant
    Filed: March 13, 2012
    Date of Patent: October 23, 2018
    Assignee: DUPONT TEIJIN FILMS U.S. LIMITED PARTNERSHIP
    Inventors: Robert Eveson, Karl Rakos, Damian Peter Tuffin, Dominic Hoy
  • Publication number: 20180257842
    Abstract: A laminate includes the following substantially coextensive layers in the following order: (a) a non-sealable, self-supporting, thermoformable copolyester film layer having a first surface and a second surface, the second surface constituting an outermost, exposed surface of the laminate; (b) a laminating adhesive layer on the first surface of the thermoformable copolyester film layer; and (c) a self-supporting, thermoformable structural film layer having a first surface and a second surface, the first surface contacting the laminating adhesive layer.
    Type: Application
    Filed: May 16, 2018
    Publication date: September 13, 2018
    Applicant: DuPont Teijin Films U.S. Limited Partnership
    Inventors: Fenghua DENG, Peter N. NUGARA, Stephen K. FRANZYSHEN, Reps M. HASKINS
  • Patent number: 10008328
    Abstract: A stretched film includes a dispersion of at least one polyester and/or polycarbonate in a matrix of at least one polyester and/or polycarbonate different from the first polyester and/or polycarbonate, the percentage by weight of the dispersed polyester and/or polycarbonate in the dispersion being less than 50% and the dispersed polyester and/or polycarbonate being in the form of platelets. The stretched film can be used as a dielectric in a capacitor.
    Type: Grant
    Filed: April 16, 2015
    Date of Patent: June 26, 2018
    Assignee: DUPONT TEIJIN FILMS U.S. LIMITED PARTNERSHIP
    Inventors: Alexis Grosrenaud, Lucien Schosseler
  • Patent number: 10008617
    Abstract: A co-extruded multi-layer biaxially oriented polyester film comprising a primary polyester layer and a dissimilar secondary polyester layer adjacent to the primary polyester layer, wherein the primary polyester layer and the secondary polyester layer each comprise a glycidyl ester of a branched monocarboxylic acid, wherein the monocarboxylic acid has from 5 to 50 carbon atoms, and wherein said glycidyl ester is in the form of its reaction product with at least some of the end groups of the polyester; and use thereof as a component of a photovoltaic cell.
    Type: Grant
    Filed: September 23, 2014
    Date of Patent: June 26, 2018
    Assignee: DuPont Teijin Films U.S. Limited Partnership
    Inventors: Tina Wright, Rachel Little, William James Brennan, Erik Jevon Nelson, Mark Russell Hodgson, Nori Mandokoro
  • Patent number: 9982999
    Abstract: An interferometric method for profiling the topography of a sample surface comprises: (i) a first interferometric profiling step at a first magnification M1 to produce a map comprising pixels with planar (X,Y)-coordinates corresponding to the area of the sample surface, (ii) identifying pixel(s) which meet or exceed a Cut-Off Threshold, and meet or exceed a parameter NNAP; (iii) identifying pixel(s) for which no z-coordinate has been recorded; (iv) generating a Low Magnification Frame File (LMFF) which comprises the (X,Y) coordinates of the pixels derived from steps (ii) and (iii); (v) a second interferometric profiling step at a second magnification M2, wherein M2>M1, wherein only selected regions of the sample surface are analysed, said selected regions comprising the features associated with the (X,Y)-coordinates of the pixels in the Low Magnification Frame File; and further comprising a step selected from: (vi) analysing the output of the second interferometric profiling step to differentiate between a
    Type: Grant
    Filed: September 19, 2013
    Date of Patent: May 29, 2018
    Assignee: DuPont Teijin Films U.S. Limited Partnership
    Inventor: Karl Rakos
  • Publication number: 20180134937
    Abstract: A biaxially stretched thermally conductive and electrically insulating film comprising a polyester forming a matrix and a plurality of anisotropic thermally conductive particles dispersed within the matrix and A process for manufacturing said biaxially stretched polyester film in which the dimension of the anisotropic filler particles with the highest thermal conductivity is oriented out of the film plane, thus conferring on said film improved thermal conductivity properties in the direction perpendicular to the film plane.
    Type: Application
    Filed: April 27, 2016
    Publication date: May 17, 2018
    Applicant: DUPONT TEIJIN FILMS U.S. LIMITED PARTNERSHIP
    Inventors: Anna ELLETT, Marianne BAUSCH-KOENIG
  • Publication number: 20180118980
    Abstract: Peelable polymeric film, in particular, peelable polymeric film which comprises a polymeric substrate layer and a coating layer of adhesive, and which is of particular use in the manufacture of electronic devices is described. The adhesive layer is derived from an aqueous composition which comprises an aliphatic polyurethane and is switchable.
    Type: Application
    Filed: April 29, 2016
    Publication date: May 3, 2018
    Applicant: DUPONT TEIJIN FILMS U.S. LIMITED PARTNERSHIP
    Inventors: Julian N. ROBINSON, Jackie H. SYMONDS, Duncan MACKERRON, Stephen W. SANKEY, Jamie EVANS, Rachel Clare LITTLE
  • Publication number: 20180066111
    Abstract: A copolyester includes repeating units derived from an aliphatic glycol, terephthalic acid, and the monomer of formula (I): wherein n=2, 3 or 4; Z is C?O, comonomer (I) constitutes a proportion of the glycol fraction of the copolyester and is present in a range of from about 5 to about 15 mol % of the glycol fraction of the copolyester; wherein said copolyester is semi-crystalline. A process tor making the copolyester includes annealing a copolyester of formula (I) at 20-80° C. below the crystalline melting point (Tm) and above the glass transition temperature (Tg).
    Type: Application
    Filed: November 14, 2017
    Publication date: March 8, 2018
    Applicant: DuPont Teijin Films U.S. Limited Partnership
    Inventors: STEPHEN WILLIAM SANKEY, DAVID TURNER, HOWARD COLQUHOUN, STEPHEN JONES
  • Publication number: 20180053865
    Abstract: Photovoltaic cells which comprise a back plane comprising a polyester film and an adhesive coating derived from an ethylene vinyl acetate copolymer and an oxazoline crosslinking agent and methods for forming the same are described.
    Type: Application
    Filed: March 11, 2016
    Publication date: February 22, 2018
    Applicant: DUPONT TEIJIN FILMS U.S. LIMITED PARTNERSHIP
    Inventors: Robert EVESON, Robert HUTCHINGS, Julian Neal ROBINSON, Moira TAYLER
  • Publication number: 20180053866
    Abstract: The invention is concerned with photovoltaic cells, processes for the production thereof and polyester films useful in the production thereof wherein the back plane of the photovoltaic cell is a polyester film having an adhesive coating derived from a composition comprising an epoxy resin and a blocked diisocyanate.
    Type: Application
    Filed: March 18, 2016
    Publication date: February 22, 2018
    Applicant: DUPONT TEIJIN FILMS U.S. LIMITED PARTNERSHIP
    Inventors: Robert EVESON, Michael HEERAN, Robert HUTCHINGS, Simon MORTLOCK
  • Patent number: 9840590
    Abstract: A semi-crystalline biaxially oriented film comprising a copolyester which comprises repeating units derived from an aliphatic glycol, an aromatic dicarboxylic acid, and the monomer of formula (I): (I) wherein n=2, 3 or 4, Z is C?O, and wherein comonomer (I) constitutes a proportion of the glycol fraction of the copolyester and is present in an amount of at least about 4 mol % of the glycol fraction of the copolyester.
    Type: Grant
    Filed: June 17, 2014
    Date of Patent: December 12, 2017
    Assignee: DUPONT TEIJIN FILMS U.S. LIMITED PARTNERSHIP
    Inventors: Stephen William Sankey, David Turner, Howard Colquhoun, Stephen Jones
  • Publication number: 20170218152
    Abstract: A composite film includes a polyester film substrate layer and a crosslinked layer on a surface thereof, wherein the crosslinked layer includes a reaction product of a) a functionalized ethylene vinyl acetate copolymer including multiple COOH groups or multiple alcoholic OH groups per molecule; and b) an organic crosslinker including multiple reactive groups per molecule, the reactive groups being reactive with the COOH or alcoholic OH groups; wherein the adhesion strength between the substrate layer and the crosslinked layer is at least 177 g/cm (450 g/inch). A method of joining the composite film, optionally further including a heat-sealable polymer layer on the crosslinked layer, to a container or a self-supporting film, includes contacting the crosslinked layer or the heat-sealable polymer layer with the container or the self-supporting film or under heat sealing conditions.
    Type: Application
    Filed: August 3, 2015
    Publication date: August 3, 2017
    Applicant: DuPont Teijin Films U.S. Limited Partnership
    Inventors: Shengsheng LIU, Fenghua DENG
  • Patent number: 9711758
    Abstract: 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: Grant
    Filed: July 24, 2015
    Date of Patent: July 18, 2017
    Assignees: DUPONT TEIJIN FILMS U.S. LIMITED PARTNERSHIP, NEDERLANDSE ORGANISATIE VOOR TOEGPAST NATUURWETENSCHAPPELIJK ONDERZOEK TNO
    Inventors: Duncan Henry Mackerron, Stephan Harkema, Ian Keith Alexander
  • Publication number: 20170174831
    Abstract: A copolyester comprising repeating units derived from an aliphatic glycol, an aromatic dicarboxylic acid, and the monomer of formula (I): (Formula (I)) wherein n=2, 3 or 4, and wherein comonomer (I) constitutes a proportion of the glycol fraction of the copolyester; and a film, fibre or moulding composition or moulded article comprising said copolyester.
    Type: Application
    Filed: June 19, 2015
    Publication date: June 22, 2017
    Applicant: DUPONT TEIJIN FILMS U.S. LIMITED PARTNERSHIP
    Inventors: STEPHEN WILLIAM SANKEY, DAVID TURNER, HOWARD COLQUHOUN, STEPHEN JONES
  • Publication number: 20170162828
    Abstract: 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: Application
    Filed: July 24, 2015
    Publication date: June 8, 2017
    Applicant: DUPONT TEIJIN FILMS U.S. LIMITED PARTNERSHIP
    Inventors: DUNCAN HENRY MACKERRON, STEPHAN HARKEMA, IAN KEITH ALEXANDER
  • Publication number: 20170162734
    Abstract: A photovoltaic cell comprising a transparent front-plane, an opaque back-plane and an encapsulant resin wherein said back-plane comprises a polyester film comprising a base layer (B) comprising a crystallisable polyester and a heat-sealable layer (A) comprising an amorphous copolyester wherein: (i) said amorphous copolyester is derived from an aliphatic diol and a cycloaliphatic diol and at least one aromatic dicarboxylic acid (ii) said polyester film is disposed in the photovoltaic cell such that layer (A) is in contact with the encapsulant resin.
    Type: Application
    Filed: July 8, 2015
    Publication date: June 8, 2017
    Applicant: DUPONT TEIJIN FILMS U.S. LIMITED PARTNERSHIP
    Inventors: Emily PARNHAM, Simon V. MORTLOCK, Allan LOVATT, Julian N. ROBINSON, Maurice Kieran LOONEY, Paul James OLIVER
  • Patent number: 9637588
    Abstract: A film comprising a copolyester wherein said copolyester comprises repeating units derived from an aliphatic glycol, an aromatic dicarboxylic acid, and a comonomer (M) selected from the group consisting of N,N?-bis-(2-hydroxyalkyl)-bicyclo-[2,2,2]-oct-7-ene-2,3,5,6-tetracarboxylic diimide (BODI) and 2-hydroxyalkyl-2-[p-(2-hydroxyethoxycarbonyl)phenyl]-1,3-dioxo-2H-isoindole-5-carboxylate (DOIC), wherein the number of carbon atoms is the 2-hydroxyalkyl group is 2, 3 or 4, and wherein comonomer (M) constitutes a proportion of the glycol fraction of the copolyester.
    Type: Grant
    Filed: October 3, 2014
    Date of Patent: May 2, 2017
    Assignee: DuPont Teijin Films U.S. Limited Partnership
    Inventors: Stephen William Sankey, David Turner, Howard Colquhoun, Stephen Jones
  • Publication number: 20170110215
    Abstract: A reflective conductive film includes (i) a reflective polymeric substrate having a polymeric base layer and a polymeric binding layer, wherein the polymeric material of the base layer has a softening temperature TS-B, and the polymeric material of the binding layer has a softening temperature TS-HS; and (ii) a conductive layer that includes a plurality of nanowires, wherein the nanowires are bound by the polymeric matrix of the binding layer such that the nanowires are dispersed at least partially in the polymeric matrix of the binding layer, wherein the polymeric substrate is a biaxially oriented substrate, and wherein the polymeric binding layer is a copolyester.
    Type: Application
    Filed: December 23, 2016
    Publication date: April 20, 2017
    Applicant: DUPONT TEIJIN FILMS U.S. LIMITED PARTNERSHIP
    Inventors: Tina Wright, Xavier Bories-Azeau
  • Publication number: 20170081488
    Abstract: Polyester films with abrasion resistant coatings and methods for making the same are provided. The coated polyester films include a polyester film substrate having a coating on at least one side thereof, wherein the coating is derived from a coating composition that includes (i) a melamine crosslinker component and (ii) a polyurethane component derivable from at least one diisocyanate and at least one polymeric polyol.
    Type: Application
    Filed: May 21, 2015
    Publication date: March 23, 2017
    Applicant: DUPONT TEIJIN FILMS U.S. LIMITED PARTNERSHIP
    Inventors: ROBERT EVESON, ROBERT HUTCHINGS