Patents by Inventor Darin L. Dotson

Darin L. Dotson 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: 20230407047
    Abstract: An composition comprises a first component and one or more calcium cis-1,2-cyclohexanedicarboxylate salts. The first component is selected from thermoplastic polymers, waxes, and mixtures thereof. 25 mol. % or more of the calcium cis-1,2-cyclohexanedicarboxylate salts present in the composition are calcium cis-1,2-cyclohexanedicarboxylate monohydrate. A method for producing a polymer composition entails mixing the composition with a polyolefin polymer, melting the resulting admixture, and letting the admixture solidify to produce a polymer composition.
    Type: Application
    Filed: August 31, 2023
    Publication date: December 21, 2023
    Inventors: Darin L. Dotson, Xiaoyou Xu, Walter Forrister, Chi-Chun Tsai
  • Patent number: 11746212
    Abstract: An additive composition comprises an antioxidant and one or more calcium cis-1,2-cyclohexanedicarboxylate salts. 25 mol. % or more of the calcium cis-1,2-cyclohexanedicarboxylate salts present in the additive composition are calcium cis-1,2-cyclohexanedicarboxylate monohydrate. 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: Grant
    Filed: September 10, 2021
    Date of Patent: September 5, 2023
    Assignee: Milliken & Company
    Inventors: Darin L. Dotson, Xiaoyou Xu, Walter Forrister, Chi-Chun Tsai
  • Publication number: 20220002519
    Abstract: An additive composition comprises an antioxidant and one or more calcium cis-1,2-cyclohexanedicarboxylate salts. 25 mol. % or more of the calcium cis-1,2-cyclohexanedicarboxylate salts present in the additive composition are calcium cis-1,2-cyclohexanedicarboxylate monohydrate. 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 10, 2021
    Publication date: January 6, 2022
    Inventors: Darin L. Dotson, Xiaoyou Xu, Walter Forrister, Chi-Chun Tsai
  • Patent number: 11118027
    Abstract: An additive composition comprises one or more calcium cis-1,2-cyclohexanedicarboxylate salts. 25 mol. % or more of the calcium cis-1,2-cyclohexanedicarboxylate salts present in the additive composition are calcium cis-1,2-cyclohexanedicarboxylate monohydrate. The additive composition has a gravimetric water content of about 20% or less. 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: Grant
    Filed: July 22, 2019
    Date of Patent: September 14, 2021
    Assignee: Milliken & Company
    Inventors: Darin L. Dotson, Xiaoyou Xu, Walter Forrister, Chi-Chun Tsai
  • Publication number: 20210198174
    Abstract: A process for making a high purity salt comprises the steps of providing an organic compound, providing a metal salt, adding the metal salt and organic compound to an aqueous medium, heating the reaction mixture to react the organic compound and the metal salt to form an organic salt, collecting the organic salt, and directly contacting the collected organic salt with a heated gas stream while agitating the collected organic salt to reduce the moisture content of the dried organic salt to about 7% or less.
    Type: Application
    Filed: December 11, 2020
    Publication date: July 1, 2021
    Inventor: Darin L. Dotson
  • Patent number: 10865177
    Abstract: A process for making a high purity salt comprises the steps of providing an organic compound, providing a metal salt, adding the metal salt and organic compound to an aqueous medium, heating the reaction mixture to react the organic compound and the metal salt to form an organic salt, collecting the organic salt, exposing the collected organic salt to microwave radiation, and exposing the collected organic salt to infrared radiation.
    Type: Grant
    Filed: June 11, 2019
    Date of Patent: December 15, 2020
    Assignee: Milliken & Company
    Inventors: Darin L. Dotson, Xiaoying Wang, Rui Liu
  • Publication number: 20200308091
    Abstract: A process for making a high purity salt comprises the steps of providing an organic compound, providing a metal salt, adding the metal salt and organic compound to an aqueous medium, heating the reaction mixture to react the organic compound and the metal salt to form an organic salt, collecting the organic salt, exposing the collected organic salt to microwave radiation, and exposing the collected organic salt to infrared radiation.
    Type: Application
    Filed: June 11, 2019
    Publication date: October 1, 2020
    Inventors: Darin L. Dotson, Xiaoying Wang, Rui Liu
  • 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
  • Publication number: 20200032031
    Abstract: An additive composition comprises one or more calcium cis-1,2-cyclohexanedicarboxylate salts. 25 mol. % or more of the calcium cis-1,2-cyclohexanedicarboxylate salts present in the additive composition are calcium cis-1,2-cyclohexanedicarboxylate monohydrate. The additive composition has a gravimetric water content of about 20% or less. 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: July 22, 2019
    Publication date: January 30, 2020
    Inventors: Darin L. Dotson, Xiaoyou Xu, Walter Forrister, Chi-Chun Tsai
  • Patent number: 9580575
    Abstract: A polyethylene article comprises crystalline polyethylene in an orthorhombic unit cell. The b-axes of the crystalline polyethylene are substantially aligned with the machine direction of the article. In particular, the Herman's index of the b-axes in the machine direction is greater than zero and greater than the Herman's indices of the b-axes in both the transverse and normal directions. The unique physical attributes exhibited by a polyethylene article having this new morphology are also described.
    Type: Grant
    Filed: September 22, 2014
    Date of Patent: February 28, 2017
    Assignee: Milliken & Company
    Inventors: Darin L. Dotson, Chi-Chun Tsai, Haihu Qin, John W. Miley, Mary Angela Cooley, Sanjeev K. Dey, Eduardo Torres, Francisco Alvarez
  • Patent number: 9200144
    Abstract: The invention provides a thermoplastic polymer composition comprising a polyolefin polymer and a nucleating agent. The nucleating agent comprises a compound conforming to the structure of Formula (I) The invention also provides a series of compounds encompassed by the structure of Formula (I).
    Type: Grant
    Filed: September 22, 2014
    Date of Patent: December 1, 2015
    Assignee: MILLIKEN & COMPANY
    Inventors: John W. Miley, Haihu Qin, Darin L. Dotson, Mary Angela Cooley, Chi-Chun Tsai, Sanjeev K. Dey, Eduardo Torres, Francisco Alvarez
  • Patent number: 9193845
    Abstract: The invention provides a compound conforming to the structure of Formula (CX) The invention also provides a thermoplastic polymer composition comprising a polyolefin polymer and a compound conforming to the structure of Formula (CX) as a nucleating agent.
    Type: Grant
    Filed: September 22, 2014
    Date of Patent: November 24, 2015
    Assignee: MILLIKEN & COMPANY
    Inventors: Haihu Qin, Darin L. Dotson, Eduardo Torres, Sanjeev K. Dey, Francisco Alvarez
  • Patent number: 9120914
    Abstract: The invention provides a compound conforming to the structure of Formula (CXX) The invention also provides a thermoplastic polymer composition comprising a polyolefin polymer and a compound conforming to the structure of Formula (CXX) as a nucleating agent.
    Type: Grant
    Filed: September 22, 2014
    Date of Patent: September 1, 2015
    Assignee: MILLIKEN & COMPANY
    Inventors: Darin L. Dotson, Mary Angela Cooley
  • Publication number: 20150094406
    Abstract: The invention provides a thermoplastic polymer composition comprising a polyolefin polymer and a nucleating agent. The nucleating agent comprises a compound conforming to the structure of Formula (I) The invention also provides a series of compounds encompassed by the structure of Formula (I).
    Type: Application
    Filed: September 22, 2014
    Publication date: April 2, 2015
    Inventors: John W. Miley, Haihu Qin, Darin L. Dotson, Mary Angela Cooley, Chi-Chun Tsai, Sanjeev K. Dey, Eduardo Torres, Francisco Alvarez
  • Publication number: 20150087758
    Abstract: The invention provides a compound conforming to the structure of Formula (CX) The invention also provides a thermoplastic polymer composition comprising a polyolefin polymer and a compound conforming to the structure of Formula (CX) as a nucleating agent.
    Type: Application
    Filed: September 22, 2014
    Publication date: March 26, 2015
    Inventors: Haihu Qin, Darin L. Dotson, Eduardo Torres, Sanjeev K. Dey, Francisco Alvarez
  • Publication number: 20150086736
    Abstract: A polyethylene article comprises crystalline polyethylene in an orthorhombic unit cell. The b-axes of the crystalline polyethylene are substantially aligned with the machine direction of the article. In particular, the Herman's index of the b-axes in the machine direction is greater than zero and greater than the Herman's indices of the b-axes in both the transverse and normal directions. The unique physical attributes exhibited by a polyethylene article having this new morphology are also described.
    Type: Application
    Filed: September 22, 2014
    Publication date: March 26, 2015
    Inventors: Darin L. Dotson, Chi-Chun Tsai, Haihu Qin, John W. Miley, Mary Angela Cooley, Sanjeev K. Dey, Eduardo Torres, Francisco Alvarez
  • Publication number: 20150087759
    Abstract: The invention provides a compound conforming to the structure of Formula (CXX) The invention also provides a thermoplastic polymer composition comprising a polyolefin polymer and a compound conforming to the structure of Formula (CXX) as a nucleating agent.
    Type: Application
    Filed: September 22, 2014
    Publication date: March 26, 2015
    Inventors: Darin L. Dotson, Mary Angela Cooley
  • Patent number: 8835542
    Abstract: A composition comprises a thermoplastic and a nucleating agent. The thermoplastic can be a polyolefin selected from the group consisting of polypropylene homopolymers, polypropylene copolymers, polyethylene, polyethylene copolymers, polybutylene, poly(4 methyl 1 pentene) and mixtures thereof. The nucleating agent can comprise a metal salt of a phenylphosphonic acid. The nucleating agent can comprise primary particles having a mean aspect ratio of about two or more. The composition can also comprise an acid scavenger, such as one or more metal salts of stearic acid. The composition can be used to produce thermoplastic articles using, for example, injection molding and thermoforming techniques.
    Type: Grant
    Filed: February 25, 2010
    Date of Patent: September 16, 2014
    Assignee: Milliken & Company
    Inventors: Daniel M. Connor, Jason D. Sprinkle, Darin L. Dotson, Daike Wang
  • Patent number: 8828288
    Abstract: Disclosed are porous, low density nanoclay composites that exhibit highly homogeneous microcellular morphology and methods for forming the nanocomposites. The nanocomposites include a three-dimensional matrix having a non-lamellar, generally isotropic cellular structure with little or no macroscopic pores. The nanocomposites also include a gel that may be a noncovalently cross-linked, thermoreversible gel. The nanocomposites may include a binder and/or fibrous reinforcement materials. The nanocomposites may be formed according to a freeze-drying process in which ice crystal growth is controlled to prevent formation of macroscopic pores in the composite materials.
    Type: Grant
    Filed: May 31, 2012
    Date of Patent: September 9, 2014
    Assignee: Milliken & Company
    Inventors: Qi Liao, Walter A. Scrivens, Philip T. Wilson, Darin L. Dotson, Hao Zhou
  • Patent number: 8779045
    Abstract: A thermoplastic polymer composition comprises a thermoplastic polymer and a nucleating agent.
    Type: Grant
    Filed: October 13, 2010
    Date of Patent: July 15, 2014
    Assignee: Milliken & Company
    Inventors: Darin L. Dotson, Robbie Willem Johan M. Hanssen, Jiannong Xu