Patents by Inventor Carl M. Lentz

Carl M. Lentz 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: 10907054
    Abstract: Ruptureable, dual reagent mono-capsules are disclosed that have a pre-formed capsule having a core composition, which includes a first reagent, encapsulated within a polymer wall, and a shell connected to an exterior surface of the polymer wall by a surfactant. The shell is made from a second reagent that is chemically bonded to the surfactant by a chemical electrostatic interaction. Upon rupture of the polymer wall of the mono-capsule, the first reagent and the second reagent chemically react with one another to form a reaction product.
    Type: Grant
    Filed: February 1, 2019
    Date of Patent: February 2, 2021
    Assignee: Microtek Laboratories, INC.
    Inventors: Carl M. Lentz, Kayla L. M. Ryan
  • Publication number: 20200146378
    Abstract: Microcapsules or macrocapsules have a core composition that includes a phase change material (PCM) encapsulated within a polymer wall with an outer shell having a siloxane tethered to an exterior surface of the polymer wall by a surfactant. The siloxane may form a crystalline or a sol-gel outer shell. Methods of making such capsules and textile fabrics and clothing incorporating such capsules include treating pre-formed capsules with a surfactant solution followed by treating with a compound containing a siloxane functional group. The surfactant connects or tethers the siloxane to the exterior surface of the polymer wall and the siloxane forms an outer shell of the capsules.
    Type: Application
    Filed: January 20, 2020
    Publication date: May 14, 2020
    Applicant: MICROTEK LABORATORIES, INC.
    Inventors: Kayla L. M. Ryan, Carl M. Lentz
  • Patent number: 10561182
    Abstract: Microcapsules or macrocapsules have a core composition that includes a phase changing material (PCM) encapsulated within a polymer wall with an outer shell having a siloxane tethered to an exterior surface of the polymer wall by a surfactant. The siloxane may form a crystalline or a sol-gel outer shell. Methods of making such capsules and textile fabrics and clothing incorporating such capsules include treating pre-formed capsules with a surfactant solution followed by treating with a compound containing a siloxane functional group. The surfactant connects or tethers the siloxane to the exterior surface of the polymer wall and the siloxane forms an outer shell of the capsules.
    Type: Grant
    Filed: February 27, 2018
    Date of Patent: February 18, 2020
    Assignee: Microtek Laboratories, INC.
    Inventors: Kayla L. M. Ryan, Carl M. Lentz
  • Patent number: 10487252
    Abstract: Thermal cooling gel and cold packs enclosing such thermal cooling gel have an aqueous gel of 1% to 10% wt/wt of cellulose, 0.5 g/L to 2 g/L of an ice nucleating protein, and a biocide. The enthalpy of the thermal cooling gel is in a range of 250 J/g to 330 J/g.
    Type: Grant
    Filed: January 23, 2019
    Date of Patent: November 26, 2019
    Assignee: Microtek Laboratories, INC.
    Inventors: Madison B Schweke, Jessica P Davis, Carl M Lentz
  • Patent number: 10401232
    Abstract: Visual and electronically readable temperature indicators and methods of making the same have an electric circuit with a microchip and a bridge within the circuit, and a facing material over the electric circuit. The bridge includes either a single layer or multiple layers that include a conductive material, a phase change material having a pre-selected melt temperature, a binder, a first colorant that is soluble in the phase change material and/or a second colorant that is a special effect pigment. In operation, at temperatures below the pre-selected melt temperature, the bridge is electrically conductive, and at a temperature at or above the pre-selected melt temperature, the phase change material melts and dilutes the conductive material, so that the bridge is electrically non-conductive, and a color change occurs that is visible to the user through the facing material such as through a transparent window or in an absorbent material.
    Type: Grant
    Filed: January 25, 2017
    Date of Patent: September 3, 2019
    Assignee: KLT Technology, Inc.
    Inventors: Steve Yeager, Justine Gaston, Carl M. Lentz, Randall Lane
  • Publication number: 20190225853
    Abstract: Thermal cooling gel and cold packs enclosing such thermal cooling gel have an aqueous gel of 1% to 10% wt/wt of cellulose, 0.5 g/L to 2 g/L of an ice nucleating protein, and a biocide. The enthalpy of the thermal cooling gel is in a range of 250 J/g to 330 J/g.
    Type: Application
    Filed: January 23, 2019
    Publication date: July 25, 2019
    Inventors: Madison B. Schweke, Jessica P. Davis, Carl M. Lentz
  • Patent number: 10345159
    Abstract: Visually and electronically readable temperature indicators have an electric circuit having a microchip and a bridge within the circuit and a porous substrate in direct contact with the bridge. The porous substrate has a first end protruding beyond a perimeter of the bridge with a temperature sensitive composition of a pre-selected melt temperature as a dry coating thereon. The bridge is formed of a conductive material and a binder. At a temperature at or above the pre-selected melt temperature, the temperature sensitive composition melts, migrates along the porous substrate to a position in contact with the bridge, thereby rendering the bridge electrically non-conductive or less conductive than an originally conductive state of the bridge, and provides a visible indication that the pre-selected melt temperature has been reached.
    Type: Grant
    Filed: March 20, 2018
    Date of Patent: July 9, 2019
    Assignee: KLT Technology, INC.
    Inventors: Steven L. Yeager, Jason M. Romine, Carl M. Lentz, Thomas Randall Lane, Robin A. Snyder
  • Patent number: 10335758
    Abstract: Rupturable, dual reagent mono-capsules are disclosed that have a core composition, which includes a carboxylic acid, encapsulated within a phenolic resin-containing polymer wall that ruptures upon exposure to alkaline conditions over a period of time, and a shell connected to an exterior surface of the polymer wall by a surfactant. The shell is made from a mineral containing a metal that is chemically bonded to the surfactant by a chemical electrostatic interaction. Upon rupture of the polymer wall of the mono-capsule, the carboxylic acid and the mineral containing the metal chemically react with one another to form a reaction product that seals a rupture in the capsule and/or seals a feature of a surface upon which the capsules are disposed.
    Type: Grant
    Filed: October 24, 2018
    Date of Patent: July 2, 2019
    Assignee: Microtek Laboratories, INC.
    Inventors: Kayla L. M. Ryan, Carl M. Lentz
  • Patent number: 10316199
    Abstract: Microcapsules are disclosed that have a core composition encapsulated within a polymer wall, and an inorganic shell connected to an exterior surface of the polymer wall by a surfactant. The inorganic shell has a cation attracted to the surfactant and an anion or anion equivalent chemically bonded to the cation to form the shell or has the metal portion of a metal-containing compound attracted to the surfactant to form the shell. The shell may comprise a Ca, Mg, or Ag metal compound. The shell may be a graphene oxide-metal compound.
    Type: Grant
    Filed: July 11, 2017
    Date of Patent: June 11, 2019
    Assignee: Microtek Laboratories Inc.
    Inventors: Carl M Lentz, Kayla L. M. Ryan
  • Publication number: 20190161626
    Abstract: Ruptureable, dual reagent mono-capsules are disclosed that have a pre-formed capsule having a core composition, which includes a first reagent, encapsulated within a polymer wall, and a shell connected to an exterior surface of the polymer wall by a surfactant. The shell is made from a second reagent that is chemically bonded to the surfactant by a chemical electrostatic interaction. Upon rupture of the polymer wall of the mono-capsule, the first reagent and the second reagent chemically react with one another to form a reaction product.
    Type: Application
    Filed: February 1, 2019
    Publication date: May 30, 2019
    Applicant: Microtek Laboratories, INC.
    Inventors: Carl M. Lentz, Kayla L.M. Ryan
  • Patent number: 10287470
    Abstract: A microcapsule or microcapsule having a polymer wall comprising a melamine formaldehyde reacted with a crosslinking agent to form a unit cell according to a general formula (II) and/or the polymer wall has a FT-IR Spectrum as shown in FIG. 4. The crosslinking agent is a mixture of a reaction product of a cyclic urea (U) and a multifunctional aldehyde (A), and at least one crosslinker selected from the following group: a reaction products of (i) an aminotriazine and at least one aldehyde selected from the group consisting of aliphatic monoaldehydes and multifunctional aliphatic aldehydes, (ii) urea and/or cyclic ureas and formaldehyde, or (iii) phenols and aliphatic monoaldehydes, or from alkoxycarbonylaminotriazines, or multifunctional isocyanates, epoxides, aziridines, and carbodiimides.
    Type: Grant
    Filed: May 29, 2018
    Date of Patent: May 14, 2019
    Assignee: Microtek Laboratories, INC.
    Inventors: Carl M. Lentz, David R. Virgallito, Jerry K. Lawson
  • Publication number: 20190078006
    Abstract: Methods for producing a dimensionally stable phase change material (PCM), and dimensionally stable PCMs are disclosed. The methods include providing a porous base material, mixing a phase change material having a polar functional group with a substance that increases the polar attraction of the phase change material for the porous base material to form a mixture thereof; and, thereafter, mixing the mixture with the porous base material until a selected saturation of phase change material in the porous base material is reached. The methods may include filtering the porous base material after the selected saturation is reached to form a cake of dimensionally stable PCM and, thereafter, reducing the size of the dimensionally stable PCM to an average mean particle size of about 10 to about 50 ?m, or more preferably 20 to 30 ?m.
    Type: Application
    Filed: November 6, 2018
    Publication date: March 14, 2019
    Applicant: MICROTEK LABORATORIES, INC.
    Inventors: Carl M. Lentz, Teresa T. Virgallito, Jerry K. Lawson
  • Patent number: 10221323
    Abstract: Ruptureable, dual reagent mono-capsules are disclosed that have a core composition, which includes a first reagent, encapsulated within a polymer wall, and a shell connected to an exterior surface of the polymer wall by a surfactant. The shell is made from a second reagent that is chemically bonded to the surfactant by a chemical electrostatic interaction. Upon rupture of the polymer wall of the mono-capsule, the first reagent and the second reagent chemically react with one another to form a reaction product.
    Type: Grant
    Filed: July 11, 2017
    Date of Patent: March 5, 2019
    Assignee: Microtek Laboratories, INC.
    Inventors: Carl M Lentz, Kayla L. M. Ryan
  • Publication number: 20190054441
    Abstract: Rupturable, dual reagent mono-capsules are disclosed that have a core composition, which includes a carboxylic acid, encapsulated within a phenolic resin-containing polymer wall that ruptures upon exposure to alkaline conditions over a period of time, and a shell connected to an exterior surface of the polymer wall by a surfactant. The shell is made from a mineral containing a metal that is chemically bonded to the surfactant by a chemical electrostatic interaction. Upon rupture of the polymer wall of the mono-capsule, the carboxylic acid and the mineral containing the metal chemically react with one another to form a reaction product that seals a rupture in the capsule and/or seals a feature of a surface upon which the capsules are disposed.
    Type: Application
    Filed: October 24, 2018
    Publication date: February 21, 2019
    Applicant: Microtek Laboratories, Inc.
    Inventors: Kayla L. M. Ryan, Carl M. Lentz
  • Patent number: 10125297
    Abstract: Methods for producing a dimensionally stable phase change material (PCM), and dimensionally stable PCMs are disclosed. The methods include providing a porous base material, mixing a phase change material having a polar functional group with a substance that increases the polar attraction of the phase change material for the porous base material to form a mixture thereof; and, thereafter, mixing the mixture with the porous base material until a selected saturation of phase change material in the porous base material is reached. The methods may include filtering the porous base material after the selected saturation is reached to form a cake of dimensionally stable PCM and, thereafter, reducing the size of the dimensionally stable PCM to an average mean particle size of about 10 to about 50 ?m, or more preferably 20 to 30 ?m.
    Type: Grant
    Filed: January 19, 2016
    Date of Patent: November 13, 2018
    Assignee: Microtek Laboratories, INC.
    Inventors: Carl M. Lentz, Teresa T. Virgallito, Jerry K. Lawson
  • Publication number: 20180273820
    Abstract: A microcapsule or microcapsule having a polymer wall comprising a melamine formaldehyde reacted with a crosslinking agent to form a unit cell according to a general formula (II) and/or the polymer wall has a FT-IR Spectrum as shown in FIG. 4. The crosslinking agent is a mixture of a reaction product of a cyclic urea (U) and a multifunctional aldehyde (A), and at least one crosslinker selected from the following group: a reaction products of (i) an aminotriazine and at least one aldehyde selected from the group consisting of aliphatic monoaldehydes and multifunctional aliphatic aldehydes, (ii) urea and/or cyclic ureas and formaldehyde, or (iii) phenols and aliphatic monoaldehydes, or from alkoxycarbonylaminotriazines, or multifunctional isocyanates, epoxides, aziridines, and carbodiimides.
    Type: Application
    Filed: May 29, 2018
    Publication date: September 27, 2018
    Inventors: Carl M. Lentz, David R. Virgallito, Jerry K. Lawson
  • Publication number: 20180242665
    Abstract: Microcapsules or macrocapsules have a core composition that includes a phase changing material (PCM) encapsulated within a polymer wall with an outer shell having a siloxane tethered to an exterior surface of the polymer wall by a surfactant. The siloxane may form a crystalline or a sol-gel outer shell. Methods of making such capsules and textile fabrics and clothing incorporating such capsules include treating pre-formed capsules with a surfactant solution followed by treating with a compound containing a siloxane functional group. The surfactant connects or tethers the siloxane to the exterior surface of the polymer wall and the siloxane forms an outer shell of the capsules.
    Type: Application
    Filed: February 27, 2018
    Publication date: August 30, 2018
    Applicant: MICROTEK LABORATORIES, INC
    Inventors: Kayla L. M. Ryan, Carl M. Lentz
  • Patent number: 10005059
    Abstract: Methods for producing microcapsules begin by preparing an emulsion of a surfactant, core material, and water, followed by the addition of a crosslinking agent and a melamine formaldehyde prepolymer, which is subsequently polymerized. The crosslinking agent is added before the melamine formaldehyde prepolymer, with a first addition or a second addition of a melamine formaldehyde prepolymer, or is divided for addition with both a first addition and a second addition of melamine formaldehyde prepolymer.
    Type: Grant
    Filed: August 18, 2016
    Date of Patent: June 26, 2018
    Assignee: Microtek Laboratories, INC
    Inventors: Carl M. Lentz, David R. Virgallito, Jerry K. Lawson
  • Publication number: 20180009996
    Abstract: Microcapsules are disclosed that have a core composition encapsulated within a polymer wall, and an inorganic shell connected to an exterior surface of the polymer wall by a surfactant. The inorganic shell has a cation attracted to the surfactant and an anion or anion equivalent chemically bonded to the cation to form the shell or has the metal portion of a metal-containing compound attracted to the surfactant to form the shell. The shell may comprise a Ca, Mg, or Ag metal compound. The shell may be a graphene oxide-metal compound.
    Type: Application
    Filed: July 11, 2017
    Publication date: January 11, 2018
    Inventors: Carl M LENTZ, Kayla L. M. RYAN
  • Publication number: 20180010013
    Abstract: Ruptureable, dual reagent mono-capsules are disclosed that have a core composition, which includes a first reagent, encapsulated within a polymer wall, and a shell connected to an exterior surface of the polymer wall by a surfactant. The shell is made from a second reagent that is chemically bonded to the surfactant by a chemical electrostatic interaction. Upon rupture of the polymer wall of the mono-capsule, the first reagent and the second reagent chemically react with one another to form a reaction product.
    Type: Application
    Filed: July 11, 2017
    Publication date: January 11, 2018
    Inventors: Carl M. LENTZ, Kayla L. M. RYAN