Patents by Inventor Deborah A. Tung
Deborah A. Tung 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: 7740926Abstract: A container providing effective oxygen-scavenging functionality, while having high L* color or low darkness. The container has at least one wall, wherein the wall comprises a populated area, and wherein the populated area comprises a film-forming polymer; and a population of particles comprising an effective amount of oxygen-scavenging particles, wherein the number of oxygen scavenging particles does not exceed a concentration of about (1×107 particles÷T) per cubic centimeter of polymer wherein T is the thickness of the populated area in mils; and wherein the change in the transmission Hunter L* of said wall is less than about 0.4 per mil of the container wall when compared to a control that does not contain oxygen-scavenging particles.Type: GrantFiled: July 16, 2002Date of Patent: June 22, 2010Assignee: M&G USA CorporationInventors: Deborah Tung, Edwin A. Sisson, Roy A. Leckonby
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Patent number: 7687124Abstract: A container providing effective oxygen-scavenging functionality, while having low haze. The container has at least one wall, wherein the wall comprises a populated area, and wherein the populated area comprises a film-forming polymer; and a population of particles comprising an effective amount of oxygen-scavenging particles, wherein the number of particles of said population does not exceed a concentration of about (6×107 particles÷T) per cubic centimeter of polymer wherein T is the thickness of the populated area in mils; and wherein the wall has a transmission Hunter haze of up to about 1 percent per mil of the container wall.Type: GrantFiled: July 16, 2002Date of Patent: March 30, 2010Assignee: M&G USA CorporationInventors: Deborah Tung, Edwin A. Sisson, Roy A. Leckonby
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Patent number: 7244779Abstract: A resin composition provides good optical properties when stretched and efficient oxygen-scavenging, the resin composition comprising a film-forming polyester and an effective amount of oxygen-scavenging particles, wherein the particles have a particle size distribution such that particles of less than about 25 microns in size do not exceed a concentration defined by a formula that includes the apparent density of the particles. Another resin composition comprises a film-forming polyester and from about 50 to about 2500 parts by weight of iron per million by weight of the resin, wherein the amount of iron particles having a size of less than about 20 microns does not exceed about 800 parts per million by weight of the resin. A method is also provided for incorporating high levels of oxygen-scavenging particles into a film-forming polyester resin composition with low haze when stretched.Type: GrantFiled: March 24, 2004Date of Patent: July 17, 2007Assignee: M & G USA CorporationInventors: Deborah Tung, Edwin A. Sisson, Roy A. Leckonby
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Publication number: 20070098936Abstract: A container providing effective oxygen-scavenging functionality, while having high L* color or low darkness. The container has at least one wall, wherein the wall comprises a populated area, and wherein the populated area comprises a film-forming polymer; and a population of particles comprising an effective amount of oxygen-scavenging particles, wherein the number of oxygen scavenging particles does not exceed a concentration of about (1×107 particles÷T) per cubic centimeter of polymer wherein T is the thickness of the populated area in mils; and wherein the change in the transmission Hunter L* of said wall is less than about 0.4 per mil of the container wall when compared to a control that does not contain oxygen-scavenging particles.Type: ApplicationFiled: December 18, 2006Publication date: May 3, 2007Inventors: Deborah Tung, Roy Leckonby, Edwin Sisson
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Publication number: 20070100050Abstract: A container providing effective oxygen-scavenging functionality, while having low haze. The container has at least one wall, wherein the wall comprises a populated area, and wherein the populated area comprises a film-forming polymer; and a population of particles comprising an effective amount of oxygen-scavenging particles, wherein the number of particles of said population does not exceed a concentration of about (6×107 particles÷T) per cubic centimeter of polymer wherein T is the thickness of the populated area in mils; and wherein the wall has a transmission Hunter haze of up to about 1 percent per mil of the container wall.Type: ApplicationFiled: December 18, 2006Publication date: May 3, 2007Inventors: Roy Leckonby, Deborah Tung, Edwin Sisson
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Publication number: 20040185198Abstract: A transparent article comprises a thermoplastic polymer matrix and a plurality of domains, dispersed in the thermoplastic polymer matrix and having dimensions in an axial plane of the article, each domain encompassing an oxidizable inorganic composition, wherein the shortest dimension of each domain in the axial plane of the article is up to about 45 microns, so as to substantially preclude visibility of the domains to a naked eye resulting from oxidation of the inorganic composition within the domain as well as oxidation of the inorganic composition that exceeds the domain but does not exceed up to about 45 microns. A method of production of the article is also provided.Type: ApplicationFiled: January 30, 2004Publication date: September 23, 2004Inventors: Edwin A. Sisson, Deborah Tung
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Publication number: 20040178386Abstract: A resin composition provides good optical properties when stretched and efficient oxygen-scavenging, the resin composition comprising a film-forming polyester and an effective amount of oxygen-scavenging particles, wherein the particles have a particle size distribution such that particles of less than about 25 microns in size do not exceed a concentration defined by a formula that includes the apparent density of the particles. Another resin composition comprises a film-forming polyester and from about 50 to about 2500 parts by weight of iron per million by weight of the resin, wherein the amount of iron particles having a size of less than about 20 microns does not exceed about 800 parts per million by weight of the resin. A method is also provided for incorporating high levels of oxygen-scavenging particles into a film-forming polyester resin composition with low haze when stretched.Type: ApplicationFiled: March 24, 2004Publication date: September 16, 2004Inventors: Deborah Tung, Edwin A. Sisson, Roy A. Leckonby
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Patent number: 6780916Abstract: A resin composition provides good optical properties when stretched and efficient oxygen-scavenging, the resin composition comprising a film-forming polyester and an effective amount of oxygen-scavenging particles, wherein the particles have a particle size distribution such that particles of less than about 25 microns in size do not exceed a concentration defined by a formula that includes the apparent density of the particles. Another resin composition comprises a film-forming polyester and from about 50 to about 2500 parts by weight of iron per million by weight of the resin, wherein the amount of iron particles having a size of less than about 20 microns does not exceed about 800 parts per million by weight of the resin. A method is also provided for incorporating high levels of oxygen-scavenging particles into a film-forming polyester resin composition with low haze when stretched.Type: GrantFiled: July 26, 2001Date of Patent: August 24, 2004Assignee: M & G USA CorporationInventors: Deborah Tung, Edwin A. Sisson, Roy A. Leckonby
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Publication number: 20030108702Abstract: A container providing effective oxygen-scavenging functionality, while having high L* color or low darkness. The container has at least one wall, wherein the wall comprises a populated area, and wherein the populated area comprises a film-forming polymer; and a population of particles comprising an effective amount of oxygen-scavenging particles, wherein the number of oxygen scavenging particles does not exceed a concentration of about (1×107 particles÷T) per cubic centimeter of polymer wherein T is the thickness of the populated area in mils; and wherein the change in the transmission Hunter L* of said wall is less than about 0.4 per mil of the container wall when compared to a control that does not contain oxygen-scavenging particles.Type: ApplicationFiled: July 16, 2002Publication date: June 12, 2003Inventors: Deborah Tung, Edwin A. Sisson, Roy A. Leckonby
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Publication number: 20030040564Abstract: A container providing effective oxygen-scavenging functionality, while having low haze.Type: ApplicationFiled: July 16, 2002Publication date: February 27, 2003Inventors: Deborah Tung, Edwin A. Sisson, Roy A. Leckonby
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Publication number: 20030027912Abstract: A resin composition provides good optical properties when stretched and efficient oxygen-scavenging, the resin composition comprising a film-forming polyester and an effective amount of oxygen-scavenging particles, wherein the particles have a particle size distribution such that particles of less than about 25 microns in size do not exceed a concentration defined by a formula that includes the apparent density of the particles. Another resin composition comprises a film-forming polyester and from about 50 to about 2500 parts by weight of iron per million by weight of the resin, wherein the amount of iron particles having a size of less than about 20 microns does not exceed about 800 parts per million by weight of the resin. A method is also provided for incorporating high levels of oxygen-scavenging particles into a film-forming polyester resin composition with low haze when stretched.Type: ApplicationFiled: July 26, 2001Publication date: February 6, 2003Inventors: Deborah Tung, Edwin A. Sisson, Roy A. Leckonby
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Patent number: 5361818Abstract: The present invention relates to polymeric alloys which comprise the reaction product of a mixture of:(a) a polyester resin produced from the precondensation reaction of a diol and a dicarboxylic compound, said polyester subsequently condensed and having an intrinsic viscosity from about 0.13 to about 0.35 dl/g, a glass transition temperature of at least 50.degree. C., an acid number from about 5 to 50;(b) at least one polyepoxide having at least two epoxy groups per molecule; and(c) an unvulcanized rubber.Type: GrantFiled: September 27, 1993Date of Patent: November 8, 1994Assignee: The Goodyear Tire & Rubber CompanyInventors: Deborah A. Tung, Thomas J. Segatta, John J. A. Verthe, Paul H. Sandstrom, Richard G. Bauer, Mark A. Marinko
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Patent number: 5290830Abstract: Reinforced elastomeric articles, such as tires, wherein the reinforcement is reticulated bacterial cellulose are provided. Reticulated bacterial cellulose has an average diameter of about 0.1 micron and a substantially infinite aspect ratio. The reinforced article comprises about 2 phr to 10 phr of the cellulose reinforcement.Type: GrantFiled: November 6, 1991Date of Patent: March 1, 1994Assignee: The Goodyear Tire and Rubber CompanyInventors: William C. Tung, Deborah A. Tung, Douglas D. Callander, Richard G. Bauer
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Patent number: 5268134Abstract: Hoses are often reinforced with fabric to improve their performance characteristics, such as burst strength. By utilizing the technique of this invention, hose which has a high level of burst strength can be manufactured without including continuous yarn reinforcement. This invention specifically reveals a process for manufacturing a hose which involves the steps of (1) extruding a rubber composition into the form of a tube, wherein the rubber composition contains (a) an EPDM alloy comprised of (i) standard EPDM rubber, (ii) an EPDM rubber having thermoplastic side chains grafted thereto, and (iii) dispersed thermoplastic wherein the thermoplastic is selected from the group consisting of nylons, polyesters, and polyphenylene oxides, (b) an EPDM rubber, (c) carbon black, (d) at least one curative, (e) zinc oxide, (f) a processing oil, and (g) stearic acid; (2) shaping the tube into the geometric form desired for the hose; and (3) curing the rubber composition at a temperature within the range of 130.degree. C.Type: GrantFiled: June 15, 1992Date of Patent: December 7, 1993Assignee: The Goodyear Tire & Rubber CompanyInventors: Donald J. Burlett, Kevin J. Pyle, Mark S. Sinsky, Ricahrd G. Bauer, Deborah A. Tung, Vetkav R. Parameswaran
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Patent number: 5218020Abstract: The invention relates to elastomers and articles reinforced with 5 to 30 phr Chitosan particles having a diameter of 0.5 to 75 microns. In an illustrated embodiment, the Chitosan may be modified with an oxygen reactive group or a nitrogen reactive group to make the Chitosan more reactive with an elastomer. Also provided is an economical method of incorporating very fine Chitosan particles into an elastomer matrix. In the method Chitosan is dissolved in an acid and mixed with a coagulating liquid (for coagulating latex), and the mixture of chitosan/coagulating liquid is mixed with a latex solution to provide an elastomer/chitosan composite. The elastomer/chitosan composite may be used as formed or it can be used as a masterbatch and mixed with more elastomer.Type: GrantFiled: February 12, 1992Date of Patent: June 8, 1993Assignee: The Goodyear Tire & Rubber CompanyInventors: Deborah A. Tung, Richard G. Bauer
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Patent number: 5077338Abstract: A method of preparing a fiber reinforced elastomer by forming fibers therein in-situ and an elastomer made thereby are provided. In the method, a fiber forming material, preferably a high performance polymer, is dissolved in a compatible solvent to form a solvent/polymer mixture, and the mixture is added to the elastomer during compounding or mixing. The polymer is quickly dispersed into the elastomer, and the solvent rapidly evaporates. The shear of the mixer causes elongation of the polymer into fibers. The fibers may also be oriented by the shear of the mixer.Type: GrantFiled: August 23, 1990Date of Patent: December 31, 1991Assignee: The Goodyear Tire & Rubber CompanyInventors: William C. T. Tung, Deborah A. Tung, Mellis M. Kelley, Douglas C. Callander, 1