Patents Assigned to DuPont Teijin Films U.S. Limited Partnership
  • Patent number: 9522983
    Abstract: 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: Grant
    Filed: May 15, 2014
    Date of Patent: December 20, 2016
    Assignee: DUPONT TEIJIN FILMS U.S. LIMITED PARTNERSHIP
    Inventors: Robert William Eveson, Andrew Nathan Hodgson, Duncan Henry MacKerron, Katsuyuki Hashimoto
  • Publication number: 20160333196
    Abstract: An antistatic polyester film includes a self-supporting polyester substrate film bearing on at least one surface thereof an antistatic layer including a) one or more antistatic polymers comprising repeat units according to formula (I) wherein R1 and R2 are each independently H or CH3, R3 is an alkylene group having a carbon number in a range from 2 to 10, R4 and R5 are each independently a saturated hydrocarbon group having a carbon number in a range from 1 to 5, R6 is an alkylene group having a carbon number in a range from 2 to 5, n is an integer in a range from 0 to 40, m is an integer in a range from 1 to 40, and Y? is a halogen ion, nitrate ion, sulfate ion, alkylsulfate ion, sulfonate ion, alkylsulfonate ion or dihydrogen phosphate ion; b) one or more nonpolymeric cationic antistatic agents; and c) one or more crosslinkers.
    Type: Application
    Filed: February 4, 2015
    Publication date: November 17, 2016
    Applicant: DUPONT TEIJIN FILMS U.S. LIMITED PARTNERSHIP
    Inventors: Debra S. STRICKLAND, Julian Neal ROBINSON, Jackie H. SYMONDS, Cornell CHAPPELL, JR.
  • Publication number: 20160251476
    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: Application
    Filed: October 3, 2014
    Publication date: September 1, 2016
    Applicant: Dupont Teijin Films U.S. Limited Partnership
    Inventors: Stephen William SANKEY, David TURNER, Howard COLQUHOUN, Stephen JONES
  • Patent number: 9422399
    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, Z is S(?O)2, and wherein comonomer (I) constitutes a proportion of the glycol fraction of the copolyester; and films, fibers, molding compositions or molded articles comprising said copolyester.
    Type: Grant
    Filed: June 17, 2014
    Date of Patent: August 23, 2016
    Assignee: DUPONT TEIJIN FILMS U.S. LIMITED PARTNERSHIP
    Inventors: Stephen William Sankey, David Turner, Howard Colquhoun, Stephen Jones
  • Patent number: 9416225
    Abstract: A biaxially oriented polyester film including polyethylene terephthalate (PET) and at least one hydrolysis stabilizer selected from a glycidyl ester of a branched monocarboxylic acid, wherein the monocarboxylic acid has from 5 to 50 carbon atoms, wherein the hydrolysis stabilizer is present in the film in the form of its reaction product with at least some of the end-groups of the polyester; a process for making the same; and use of the film as a layer in a photovoltaic cell.
    Type: Grant
    Filed: September 8, 2010
    Date of Patent: August 16, 2016
    Assignee: DUPONT TEIJIN FILMS U.S. LIMITED PARTNERSHIP
    Inventors: William J. Brennan, Simon V. Mortlock, Allan Lovatt, David Phillips, David R. Turner
  • Publication number: 20160233349
    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: Application
    Filed: September 23, 2014
    Publication date: August 11, 2016
    Applicant: 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: 9393763
    Abstract: A sealed container containing a foodstuff or beverage has a lid that includes a heat-sealable, composite film that includes a polymeric substrate layer having a first and second surface, a primer layer that includes PVdC disposed on the first surface, and a heat-sealable polymeric layer extrusion coated on the primer layer. The heat-sealable polymeric layer is 12 ?m thick or less and includes a copolymer having repeating monomeric units of ethylene and at least a second type of repeating monomeric unit having the formula [—CH2C(R1)(X)—] wherein: X is selected from —COOR2 and —OC(O)CH3; R1 =H or methyl; and R2 is H, C1-10 alkyl or a counterion M.
    Type: Grant
    Filed: July 13, 2006
    Date of Patent: July 19, 2016
    Assignee: DUPONT TEIJIN FILMS U.S. LIMITED PARTNERSHIP
    Inventors: David Voisin, Fenghua Deng
  • Publication number: 20160137790
    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?0, 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: Application
    Filed: June 17, 2014
    Publication date: May 19, 2016
    Applicant: DuPont Teijin Films U.S. Limited Partnership
    Inventors: STEPHEN WILLIAM SANKEY, DAVID TURNER, HOWARD COLQUHOUN, STEPHEN JONES
  • Publication number: 20160130399
    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, Z is S(?O)2, and wherein comonomer (I) constitutes a proportion of the glycol fraction of the copolyester; and films, fibres, moulding compositions or moulded articles comprising said copolyester.
    Type: Application
    Filed: June 17, 2014
    Publication date: May 12, 2016
    Applicant: DuPont Teijin Films U.S. Limited Partnership
    Inventors: Stephen William SANKEY, David TURNER, Howard COLQUHOUN, Stephen JONES
  • Patent number: 9333692
    Abstract: A biaxially oriented polyester film comprising polyester and at least one hydrolysis stabilizer selected from a glycidyl ester of a branched monocarboxylic acid, wherein the monocarboxylic acid has from 5 to 50 carbon atoms, wherein said hydrolysis stabilizer is present in the film in the form of its reaction product with at least some of the end-groups of said polyester, and wherein said reaction product is obtained by the reaction of the hydrolysis stabilizer with the end-groups of the polyester in the presence of a metal cation selected from the group consisting of Group I and Group II metal cations.
    Type: Grant
    Filed: March 7, 2012
    Date of Patent: May 10, 2016
    Assignee: DUPONT TEIJIN FILMS U.S. LIMITED PARTNERSHIP
    Inventors: William J. Brennan, Simon Vernon Mortlock, William Bryden Goldie, Emma Ashford, Kirstin Jayne Forsyth, David R. Turner, Allan Lovatt
  • Publication number: 20160122475
    Abstract: A polyester film comprising a copolyester which comprises repeating units derived from an aliphatic glycol, an aromatic dicarboxylic acid, and the monomer of formula (I): wherein n=2, 3 or 4, and wherein comonomer (I) constitutes a proportion of the glycol fraction of the copolyester.
    Type: Application
    Filed: June 5, 2014
    Publication date: May 5, 2016
    Applicant: DuPont Teijin Films U.S. Limited Partnership
    Inventors: STEPHEN WILLIAM SANKEY, DAVID TURNER, HOWARD COLQUHOUN, STEPHEN MEEHAN
  • Publication number: 20160075114
    Abstract: A transparent conductive film includes (i) a polymeric substrate that includes a polyester base layer and a polyester 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, wherein TS-HS is at least 5° C. below TS-B; 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; and wherein the polymeric substrate is a biaxially oriented polyester substrate.
    Type: Application
    Filed: November 24, 2015
    Publication date: March 17, 2016
    Applicant: DuPont Teijin Films U.S. Limited Partnership
    Inventors: Xavier G.P. Bories-Azeau, Tina Wright
  • Patent number: 9269493
    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: July 7, 2014
    Date of Patent: February 23, 2016
    Assignee: DUPONT TEIJIN FILMS U.S. LIMITED PARTNERSHIP
    Inventors: Alexis Grosrenaud, Lucien Schosseler
  • Patent number: 9199438
    Abstract: A process for the manufacture of a transparent conductive film comprising: (i) a polymeric substrate comprising 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 comprising a plurality of nanowires, wherein said 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, said process comprising the steps of providing a polymeric substrate comprising a polymeric base layer and a polymeric binding layer; disposing said nanowires on the exposed surface of the binding layer; and heating the composite film to a temperature T1 wherein T1 is equal to or greater than TS-HS, and T1 is at least about 5° C. below TS-B; and transparent conductive films derived from said process.
    Type: Grant
    Filed: May 11, 2010
    Date of Patent: December 1, 2015
    Assignee: DuPont Teijin Films U.S. Limited Partnership
    Inventors: Xavier G. P. Bories-Azeau, Tina Wright
  • Patent number: 9126389
    Abstract: Articles comprising multilayer coextruded films having polyester and polyamide layers adhered with a copolymer of polyester and a sulfonic acid or its derivative, having high oxygen barrier properties and temperature resistance that are capable of being heated to 425° F. in a conventional oven are disclosed. The articles are packages, such as bags, pouches, and casings that are particularly useful for packaging and cooking foodstuffs such as meat, poultry, seafood and the like.
    Type: Grant
    Filed: June 21, 2005
    Date of Patent: September 8, 2015
    Assignee: DUPONT TEIJIN FILMS U.S. LIMITED PARTNERSHIP
    Inventor: Michael Joseph Brown
  • Publication number: 20150241210
    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: Application
    Filed: September 19, 2013
    Publication date: August 27, 2015
    Applicant: DUPONT TEIJIN FILMS U.S. LIMITED PARTNERSHIP
    Inventor: Karl RAKOS
  • Patent number: 9110229
    Abstract: A coating composition including an alkali metal silicate, a wetting agent, and a hydrophilic antifog agent forms an antifog coating on a substrate. The coating may be applied to the surface of a film from an aqueous dispersion of the ingredients, followed by drying to form a composite film.
    Type: Grant
    Filed: October 11, 2013
    Date of Patent: August 18, 2015
    Assignee: DUPONT TEIJIN FILMS U.S. LIMITED PARTNERSHIP
    Inventors: Chen Zhao, Cornell Chappell, Jr.
  • Patent number: 9096724
    Abstract: A copolyester comprising repeating units derived from an aliphatic glycol, naphthalene-dicarboxylic acid, and the monomer of formula (I) wherein n=2, 3 or 4, and films, fibres, moulding compositions and moulded articles made therefrom.
    Type: Grant
    Filed: December 18, 2012
    Date of Patent: August 4, 2015
    Assignee: DUPONT TEIJIN FILMS U.S. LIMITED PARTNERSHIP
    Inventors: Stephen William Sankey, William A. Macdonald, David Turner, Howard Colquhoun, Stephen Meehan
  • Patent number: 9074052
    Abstract: A copolyester comprising repeating units derived from an aliphatic glycol, terephthalic acid, and the monomer of formula (I): wherein n=2, 3 or 4, and films, fibres, moulding compositions and moulded articles made therefrom.
    Type: Grant
    Filed: December 18, 2012
    Date of Patent: July 7, 2015
    Assignee: DUPONT TEIJIN FILMS U.S. LIMITED PARTNERSHIP
    Inventors: Stephen William Sankey, William A. MacDonald, David Turner, Howard Colquhoun, Stephen Meehan
  • Patent number: 9073674
    Abstract: A multilayer film suitable for sealing containers such as used for food packaging, and methods of making the film, are described. The film is particularly suitable for sealing containers made from polylactic acid (PLA). The multilayer film includes: a) a substrate that includes a polymeric base layer; and b) on the substrate, a heatseal layer containing a PLA homopolymer or copolymer. The heatseal layer further includes dispersed therein an adhesion promoter, or alternatively the substrate further includes the adhesion promoter in a layer on a surface of the polymeric base layer between and adjacent the base layer and the heatseal layer. An antifog agent may also be included in the heatseal layer or on the surface of the heatseal layer opposite the substrate.
    Type: Grant
    Filed: July 31, 2013
    Date of Patent: July 7, 2015
    Assignee: DUPONT TEIJIN FILMS U.S. LIMITED PARTNERSHIP
    Inventor: Fenghua Deng