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).
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Patent number: 10301483Abstract: 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: GrantFiled: February 4, 2015Date of Patent: May 28, 2019Assignee: DUPONT TEIJIN FILMS U.S. LIMITED PARTNERSHIPInventors: Debra S. Strickland, Julian Neal Robinson, Jackie H. Symonds, Cornell Chappell, Jr.
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Publication number: 20160333196Abstract: 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: ApplicationFiled: February 4, 2015Publication date: November 17, 2016Applicant: DUPONT TEIJIN FILMS U.S. LIMITED PARTNERSHIPInventors: Debra S. STRICKLAND, Julian Neal ROBINSON, Jackie H. SYMONDS, Cornell CHAPPELL, JR.
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Patent number: 9110229Abstract: 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: GrantFiled: October 11, 2013Date of Patent: August 18, 2015Assignee: DUPONT TEIJIN FILMS U.S. LIMITED PARTNERSHIPInventors: Chen Zhao, Cornell Chappell, Jr.
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Publication number: 20140037968Abstract: 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: ApplicationFiled: October 11, 2013Publication date: February 6, 2014Applicant: DuPont Teijin Films U.S. Limited PartnershipInventors: Chen Zhao, Cornell Chappell, JR.
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Patent number: 8568892Abstract: 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: GrantFiled: October 29, 2008Date of Patent: October 29, 2013Assignee: DuPont Teijin Films U.S. Limited PartnershipInventors: Chen Zhao, David Volsin, Cornell Chappell, Jr.
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Patent number: 8557384Abstract: 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: GrantFiled: February 18, 2009Date of Patent: October 15, 2013Assignee: DuPont Teijin Films U.S. Limited PartnershipInventors: Chen Zhao, Cornell Chappell, Jr.
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Publication number: 20100297451Abstract: 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: ApplicationFiled: October 29, 2008Publication date: November 25, 2010Applicant: DUPONT TEIJIN FILMS US. LIMITED PARTNERSHIPInventors: Chen ZHAO, David VOISINFR, Cornell CHAPPELL, JR.
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Patent number: 6117532Abstract: 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: GrantFiled: October 30, 1997Date of Patent: September 12, 2000Assignee: E. I. du Pont de Nemours and CompanyInventors: Junaid Ahmed Siddiqui, Cornell Chappell, Jr
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Patent number: 6060156Abstract: 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: GrantFiled: March 30, 1998Date of Patent: May 9, 2000Assignee: E. I. du Pont de Nemours and CompanyInventors: Cornell Chappell, Jr., Junaid Ahmed Siddiqui
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Patent number: 5985437Abstract: 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: GrantFiled: December 4, 1997Date of Patent: November 16, 1999Assignee: E. I. du Pont de Nemours and CompanyInventors: Cornell Chappell, Jr., Junaid A. Siddiqui