Patents by Inventor Keith A. Keller

Keith A. Keller 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).

  • Publication number: 20240254314
    Abstract: An additive composition comprises phosphate ester anions conforming to a specified structure, aromatic carboxylate anions, optionally cycloaliphatic dicarboxylate anions, aluminum (III) cations, sodium cations, optionally calcium cations, optionally lithium cations, and optionally zinc (II) cations. The anions are present in the additive composition in specified molar percentages. The cations are also present in the additive composition in specified molar percentages.
    Type: Application
    Filed: April 2, 2024
    Publication date: August 1, 2024
    Inventors: Chi-Chun Tsai, Shane M. Waybright, Keith A. Keller
  • Patent number: 11739200
    Abstract: A 3-phenyl-3H-1-benzofuran-2-one compound is substituted with one or more acyloxy groups comprising 26 or more carbon atoms. A compound comprises two or more 3-phenyl-3H-1-benzofuran-2-one moieties and a second moiety selected from the group consisting of divalent and polyvalent C4-C60 hydrocarbon moieties. Each 3-phenyl-3H-1-benzofuran-2-one moiety is covalently bound to an open valence of the second moiety through a linking group selected from the group consisting of a carboxy group and oxyalkylene ester moieties. A composition comprises the 3-phenyl-3H-1-benzofuran-2-one compound described above or the compound described above comprising two or more 3-phenyl-3H-1-benzofuran-2-one moieties.
    Type: Grant
    Filed: February 22, 2021
    Date of Patent: August 29, 2023
    Assignee: Milliken & Company
    Inventors: Xiaoyou Xu, Keith A. Keller, Suchitra Datta, Matthew D. Meador
  • Publication number: 20210301103
    Abstract: An additive composition comprises phosphate ester anions conforming to a specified structure, aromatic carboxylate anions, optionally cycloaliphatic dicarboxylate anions, aluminum (III) cations, sodium cations, optionally calcium cations, optionally lithium cations, and optionally zinc (II) cations. The anions are present in the additive composition in specified molar percentages. The cations are also present in the additive composition in specified molar percentages.
    Type: Application
    Filed: June 14, 2021
    Publication date: September 30, 2021
    Inventors: Chi-Chun Tsai, Shane M. Waybright, Keith A. Keller
  • Publication number: 20210171747
    Abstract: A 3-phenyl-3H-1-benzofuran-2-one compound is substituted with one or more acyloxy groups comprising 26 or more carbon atoms. A compound comprises two or more 3-phenyl-3H-1-benzofuran-2-one moieties and a second moiety selected from the group consisting of divalent and polyvalent C4-C60 hydrocarbon moieties. Each 3-phenyl-3H-1-benzofuran-2-one moiety is covalently bound to an open valence of the second moiety through a linking group selected from the group consisting of a carboxy group and oxyalkylene ester moieties. A composition comprises the 3-phenyl-3H-1-benzofuran-2-one compound described above or the compound described above comprising two or more 3-phenyl-3H-1-benzofuran-2-one moieties.
    Type: Application
    Filed: February 22, 2021
    Publication date: June 10, 2021
    Inventors: Xiaoyou Xu, Keith A. Keller, Suchitra Datta, Matthew D. Meador
  • Patent number: 10954360
    Abstract: A process for extruding polypropylene comprising extruding a composition comprising a polypropylene and a second acid scavenger and less than about 10 ppm of a nucleating agent.
    Type: Grant
    Filed: May 24, 2018
    Date of Patent: March 23, 2021
    Assignee: Milliken & Company
    Inventors: Kemper D. Lake, Jr., Christopher T. Kochanowicz, Joseph J. Peterson, Clifford S. Bynum, Keith A. Keller
  • Patent number: 10947370
    Abstract: A 3-phenyl-3H-1-benzofuran-2-one compound is substituted with one or more acyloxy groups comprising 26 or more carbon atoms. A compound comprises two or more 3-phenyl-3H-1-benzofuran-2-one moieties and a second moiety selected from the group consisting of divalent and polyvalent C4-C60 hydrocarbon moieties. Each 3-phenyl-3H-1-benzofuran-2-one moiety is covalently bound to an open valence of the second moiety through a linking group selected from the group consisting of a carboxy group and oxyalkylene ester moieties. A composition comprises the 3-phenyl-3H-1-benzofuran-2-one compound described above or the compound described above comprising two or more 3-phenyl-3H-1-benzofuran-2-one moieties.
    Type: Grant
    Filed: January 16, 2019
    Date of Patent: March 16, 2021
    Assignee: Milliken & Company
    Inventors: Xiaoyou Xu, Keith A. Keller, Suchitra Datta, Matthew D. Meador
  • Publication number: 20200270435
    Abstract: A heterophasic polymer composition comprises a propylene polymer phase, an ethylene polymer phase, a compatibilizing agent comprising a fulvene moiety, and a nucleating agent. A method for modifying a heterophasic polymer composition comprises the steps of providing a compatibilizing agent, providing a nucleating agent, providing a heterophasic polymer composition comprising a propylene polymer phase and an ethylene polymer phase, mixing the compatibilizing agent, the nucleating agent, and the heterophasic polymer composition, and generating free radicals in the propylene phase and the ethylene phase. At least a portion of the compatibilizing agent then reacts with free radicals in both the propylene polymer phase and the ethylene polymer phase to form a bond with a propylene polymer in the propylene polymer phase and a bond with an ethylene polymer in the ethylene polymer phase.
    Type: Application
    Filed: February 21, 2020
    Publication date: August 27, 2020
    Inventors: Francisco Alvarez, Keith A. Keller, Clifford S. Bynum, Scott R. Trenor, Jason D. Sprinkle
  • Patent number: 10711115
    Abstract: A process for extruding polypropylene comprising extruding a composition comprising a polypropylene and a second acid scavenger and less than about 10 ppm of a nucleating agent.
    Type: Grant
    Filed: May 24, 2018
    Date of Patent: July 14, 2020
    Assignee: Milliken & Company
    Inventors: Kemper D. Lake, Jr., Christopher T. Kochanowicz, Joseph J. Peterson, Clifford S. Bynum, Keith A. Keller
  • Publication number: 20200095397
    Abstract: An additive composition comprises one or more calcium cis-1,2-cyclohexanedicarboxylate salts. The calcium 1,2-cyclohexanedicarboxylate salts have a BET specific surface area of 20 m2/g or more. A method for producing a thermoplastic polymer composition entails mixing the additive composition with a thermoplastic polymer, melting the resulting admixture, and letting the admixture solidify to produce a polymer composition.
    Type: Application
    Filed: September 26, 2019
    Publication date: March 26, 2020
    Inventors: Xiaoyou Xu, Chi-Chun Tsai, Xinfei Yu, Darin L. Dotson, Keith A. Keller, Michael J. Mannion, Daniel T. McBride
  • Patent number: 10414898
    Abstract: An additive composition comprises a plurality of granules. The granules comprise a polymer additive selected from the group consisting of clarifying agents, nucleating agents, and mixtures thereof. About 75 wt. % or more of the granules present in the additive composition have a particle size of about 0.5 mm to about 2.8 mm, and the granules have a particle hardness of less than 50 cN. A method for producing a polymer composition utilizes the above-described additive composition.
    Type: Grant
    Filed: November 15, 2017
    Date of Patent: September 17, 2019
    Assignee: Milliken & Company
    Inventors: Thomas A. Canada, K. David Lake, Jr., Keith A. Keller, Steven D. Huntley
  • Publication number: 20190225780
    Abstract: A 3-phenyl-3H-1-benzofuran-2-one compound is substituted with one or more acyloxy groups comprising 26 or more carbon atoms. A compound comprises two or more 3-phenyl-3H-1-benzofuran-2-one moieties and a second moiety selected from the group consisting of divalent and polyvalent C4-C60 hydrocarbon moieties. Each 3-phenyl-3H-1-benzofuran-2-one moiety is covalently bound to an open valence of the second moiety through a linking group selected from the group consisting of a carboxy group and oxyalkylene ester moieties. A composition comprises the 3-phenyl-3H-1-benzofuran-2-one compound described above or the compound described above comprising two or more 3-phenyl-3H-1-benzofuran-2-one moieties.
    Type: Application
    Filed: January 16, 2019
    Publication date: July 25, 2019
    Inventors: Xiaoyou Xu, Keith A. Keller, Suchitra Datta, Matthew D. Meador
  • Publication number: 20180265670
    Abstract: A process for extruding polypropylene comprising extruding a composition comprising a polypropylene and a second acid scavenger and less than about 10 ppm of a nucleating agent.
    Type: Application
    Filed: May 24, 2018
    Publication date: September 20, 2018
    Inventors: Kemper D. Lake, Jr., Christopher T. Kochanowicz, Joseph J. Peterson, Clifford S. Bynum, Keith A. Keller
  • Publication number: 20180265671
    Abstract: A biaxially oriented polypropylene film comprising at least one layer, wherein the at least one layer of the film comprises a nucleating agent, a potassium salt of a fatty acid, and a thermoplastic essentially consisting of polypropylene, wherein the content of all nucleating agents in the film is less than 10 ppm, wherein all of the thermoplastics in the layer of the film essentially consist of polypropylene.
    Type: Application
    Filed: May 24, 2018
    Publication date: September 20, 2018
    Inventors: Kemper D. Lake, JR., Christopher T. Kochanowicz, Joseph J. Peterson, Clifford S. Bynum, Keith A. Keller
  • Publication number: 20180265675
    Abstract: A process for extruding polypropylene comprising extruding a composition comprising a polypropylene and a second acid scavenger and less than about 10 ppm of a nucleating agent.
    Type: Application
    Filed: May 24, 2018
    Publication date: September 20, 2018
    Inventors: Kemper D. Lake, JR., Christopher T. Kochanowicz, Joseph J. Peterson, Clifford S. Bynum, Keith A. Keller
  • Publication number: 20180171102
    Abstract: An additive composition comprises a plurality of granules. The granules comprise a polymer additive selected from the group consisting of clarifying agents, nucleating agents, and mixtures thereof. About 75 wt. % or more of the granules present in the additive composition have a particle size of about 0.5 mm to about 2.8 mm, and the granules have a particle hardness of less than 50 cN. A method for producing a polymer composition utilizes the above-described additive composition.
    Type: Application
    Filed: November 15, 2017
    Publication date: June 21, 2018
    Inventors: Thomas A. Canada, K. David Lake, JR., Keith A. Keller, Steven D. Huntley
  • Patent number: 9994692
    Abstract: A process for extruding polypropylene comprising extruding a composition comprising a polypropylene and a second acid scavenger and less than about 10 ppm of a nucleating agent.
    Type: Grant
    Filed: November 3, 2015
    Date of Patent: June 12, 2018
    Assignee: Milliken & Company
    Inventors: Kemper D. Lake, Jr., Christopher T. Kochanowicz, Joseph J. Peterson, Clifford S. Bynum, Keith A. Keller
  • Patent number: 9994695
    Abstract: A process for extruding polypropylene comprising extruding a composition comprising a polypropylene and a second acid scavenger and less than about 10 ppm of a nucleating agent.
    Type: Grant
    Filed: November 3, 2015
    Date of Patent: June 12, 2018
    Assignee: Milliken & Company
    Inventors: Kemper D. Lake, Jr., Christopher T. Kochanowicz, Joseph J. Peterson, Clifford S. Bynum, Keith A. Keller
  • Patent number: 9982096
    Abstract: A composition comprises at least one condensed phosphorus compound. The condensed phosphorus compound is produced by reacting together in a condensation reaction a nitrogen compound and a phosphonium compound. A phosphorus-containing polymer is produced by reacting in a condensation reaction a hydroxyalkylphosphonium compound to produce an intermediate polymer and then oxidizing phosphorus atoms in the intermediate polymer to yield a polymer comprising phosphine oxide groups.
    Type: Grant
    Filed: October 22, 2014
    Date of Patent: May 29, 2018
    Assignee: Milliken & Company
    Inventors: Warren W. Gerhardt, Jason M. Spruell, Petr Valenta, Rajib Mondal, Daniel T. McBride, Keith A. Keller
  • Patent number: 9926663
    Abstract: An article comprises a textile material and a flame retardant, phosphorus-containing polymer. The flame retardant, phosphorus, containing polymer can be present in the form of a plurality of microprotuberances. The flame retardant, phosphorus, containing polymer can contain a relatively low amount of residual hydroxyalkyl groups bonded to the phosphorus atoms in the polymer. A process for producing a treated textile material is also provided.
    Type: Grant
    Filed: August 15, 2014
    Date of Patent: March 27, 2018
    Assignee: Milliken & Company
    Inventors: Petr Valenta, Rajib Mondal, James A. Rogers, Michael Todd Moore, Jason M. Spruell, Keith A. Keller, Warren W. Gerhardt, Nathan B. Emery
  • Publication number: 20180044503
    Abstract: An additive composition comprises phosphate ester anions conforming to a specified structure, aromatic carboxylate anions, optionally cycloaliphatic dicarboxylate anions, aluminum (III) cations, sodium cations, optionally calcium cations, optionally lithium cations, and optionally zinc (II) cations. The anions are present in the additive composition in specified molar percentages. The cations are also present in the additive composition in specified molar percentages.
    Type: Application
    Filed: July 31, 2017
    Publication date: February 15, 2018
    Inventors: Chi-Chun Tsai, Shane M. Waybright, Keith A. Keller