Patents by Inventor Cornell Chappell, Jr.

Cornell Chappell, Jr. 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).

  • Patent number: 10301483
    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: Grant
    Filed: February 4, 2015
    Date of Patent: May 28, 2019
    Assignee: DUPONT TEIJIN FILMS U.S. LIMITED PARTNERSHIP
    Inventors: Debra S. Strickland, Julian Neal Robinson, Jackie H. Symonds, Cornell Chappell, Jr.
  • 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.
  • 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.
  • Publication number: 20140037968
    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: Application
    Filed: October 11, 2013
    Publication date: February 6, 2014
    Applicant: DuPont Teijin Films U.S. Limited Partnership
    Inventors: Chen Zhao, Cornell Chappell, JR.
  • Patent number: 8568892
    Abstract: A coated article includes a substrate having on its surface a coating that includes a polymer selected from the group consisting of hydroxypropylcellulose, poly(2-ethyl-2-oxazoline) and mixtures of these, a surfactant, colloidal silica, and a crosslinker selected from the group consisting of water-soluble titanium salts and water-soluble or water-dispersible organic crosslinkers. The coating may be formed by applying a dispersion of the coating composition in a diluent to the substrate and subsequently drying the coated substrate to evaporate the diluent.
    Type: Grant
    Filed: October 29, 2008
    Date of Patent: October 29, 2013
    Assignee: DuPont Teijin Films U.S. Limited Partnership
    Inventors: Chen Zhao, David Volsin, Cornell Chappell, Jr.
  • Patent number: 8557384
    Abstract: A coating composition comprising 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: February 18, 2009
    Date of Patent: October 15, 2013
    Assignee: DuPont Teijin Films U.S. Limited Partnership
    Inventors: Chen Zhao, Cornell Chappell, Jr.
  • Publication number: 20100297451
    Abstract: A coated article includes a substrate having on its surface a coating that includes a polymer selected from the group consisting of hydroxypropylcellulose, poly(2-ethyl-2- oxazoline) and mixtures of these, a surfactant, colloidal silica, and a crosslinker selected from the group consisting of water-soluble titanium salts and water-soluble or water-dispersible organic crosslinkers. The coating may be formed by applying a dispersion of the coating composition in a diluent to the substrate and subsequently drying the coated substrate to evaporate the diluent.
    Type: Application
    Filed: October 29, 2008
    Publication date: November 25, 2010
    Applicant: DUPONT TEIJIN FILMS US. LIMITED PARTNERSHIP
    Inventors: Chen ZHAO, David VOISINFR, Cornell CHAPPELL, JR.
  • Patent number: 6117532
    Abstract: An oriented polyester film coated on at least one surface with a coating that improves its adhesion to gelatin is disclosed. The dry coating contains one or more sulfopolyesters; one or more tetrablock copolymer resins; and one or more non-volatile polyamines. Other ingredients, such as particulate materials and surfactants, may be present in the coating. The coating is preferably applied at the interdraw stage.
    Type: Grant
    Filed: October 30, 1997
    Date of Patent: September 12, 2000
    Assignee: E. I. du Pont de Nemours and Company
    Inventors: Junaid Ahmed Siddiqui, Cornell Chappell, Jr
  • Patent number: 6060156
    Abstract: An orientated polyester film coated on at least one surface with a coating that improves its antiblocking properties is disclosed. The coating contains an organic polymer and about 0.002% to 1.5% by weight, based on the weight of the coating, of porous particles that have a pore volume of at least 0.03 mL/g and a particle size of about 0.5 .mu.m to 4.5 .mu.m.
    Type: Grant
    Filed: March 30, 1998
    Date of Patent: May 9, 2000
    Assignee: E. I. du Pont de Nemours and Company
    Inventors: Cornell Chappell, Jr., Junaid Ahmed Siddiqui
  • Patent number: 5985437
    Abstract: An oriented polyester film coated on at least one surface with a coating that improves its adhesion to water-based coatings is disclosed. The coating contains at least one sulfopolyester; at least one tetrablock copolymer resin; and at least one acrylamide/acrylic acid copolymer or salts thereof. Other ingredients, such as particulate materials and surfactants, may be present in the coating. The coating is preferably applied at the interdraw stage.
    Type: Grant
    Filed: December 4, 1997
    Date of Patent: November 16, 1999
    Assignee: E. I. du Pont de Nemours and Company
    Inventors: Cornell Chappell, Jr., Junaid A. Siddiqui