Patents by Inventor Kai H. Lochhaas

Kai H. Lochhaas 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: 11155661
    Abstract: A method of making a copolymer is disclosed. The method includes copolymerizing components including tetrafluoroethylene and a compound represented by formula CF2?CF—O—(CF2)a—SO2X, wherein “a” is a number from 1 to 4, and X is —NZH, —NZ—SO2—(CF2)1-6—SO2X?, or —OZ, wherein Z is independently a hydrogen, an alkali metal cation, or a quaternary ammonium cation, and wherein X? is independently —NZH or —OZ. The components include at least 60 mole % of tetrafluoroethylene based on the total amount of components. A copolymer prepared by the method is also provided. A method of making a membrane using the copolymer is also provided. The present disclosure also provides a polymer electrolyte membrane that includes a copolymer made by the method and a membrane electrode assembly that includes such a polymer electrolyte membrane.
    Type: Grant
    Filed: September 22, 2016
    Date of Patent: October 26, 2021
    Assignee: 3M Innovative Properties Company
    Inventors: Gregg D. Dahlke, Denis Duchesne, Klaus Hintzer, Markus E. Hirschberg, Kai H. Lochhaas, Arne Thaler, Tilman C. Zipplies
  • Patent number: 11111326
    Abstract: Described herein is a peroxide curable, highly fluorinated elastomer derived from tetrafluoroethylene, a perfluoro ether monomer, and a compound selected from at least one of a highly fluorinated bisolefin ether and an iodine-containing perfluorinated ether.
    Type: Grant
    Filed: November 26, 2014
    Date of Patent: September 7, 2021
    Assignee: 3M Innovative Properties Company
    Inventors: Klaus Hintzer, Florian D. Jochum, Harald Kaspar, Kai H. Lochhaas, Tilman C. Zipplies
  • Patent number: 10844152
    Abstract: A copolymer having tetrafluoroethylene units and units independently represented by formula (I) in a range from 0.02 to 2 mole percent, based on the total amount of the copolymer. Rf is a linear or branched perfluoroalkyl group having from 1 to 8 carbon atoms and optionally interrupted by one or more —0— groups, n is independently from 1 to 6, and z is 0, 1, or 2. The copolymer has a melt flow index in a range from 20 grams per 10 minutes to 40 grams per 10 minutes. The copolymer can be extruded to make articles, such as insulated cables. A method of making the copolymer is also disclosed.
    Type: Grant
    Filed: February 12, 2016
    Date of Patent: November 24, 2020
    Assignee: 3M Innovative Properties Company
    Inventors: Klaus Hintzer, Harald Kaspar, Kai H. Lochhaas, Jens Schrooten, Tilman C. Zipplies, Denis Duchesne
  • Publication number: 20200291144
    Abstract: Described herein is a polymer comprising: interpolymerized units of (i) a fluorinated terminal alkene monomer and (ii) a tertiary amine-containing fluorinated monomer comprising at least one of a vinyl amine, a substituted vinyl amine, an allyl amine, a substituted allyl amine, and combinations thereof, wherein the polymer can be amorphous or semi-crystalline with a melting point no greater than 325° C. Dispersions thereof and methods of making and using the same are also described.
    Type: Application
    Filed: June 2, 2020
    Publication date: September 17, 2020
    Inventors: Michael J. Bulinski, Michael G. Costello, Denis Duchesne, Klaus Hintzer, William M. Lamanna, Kai H. Lochhaas, Michael J. Parent, Sean M. Smith
  • Patent number: 10766990
    Abstract: A copolymer having tetrafluoroethylene units, hexafluoropropylene units, and units independently represented by formula in a range from 0.02 to 2 mole percent, based on the total amount of the copolymer. Rf is a linear or branched perfluoroalkyl group having from 1 to 8 carbon atoms and optionally interrupted by one or more —O— groups, n is from 1 to 6, and m is 0 or 1. The copolymer has a melt flow index in a range from 25 grams per 10 minutes to 35 grams per 10 minutes and has up to 50 unstable end groups per 106 carbon atoms. The copolymer can be extruded to make articles, such as insulated cables. A method of making the copolymer is also disclosed.
    Type: Grant
    Filed: February 12, 2016
    Date of Patent: September 8, 2020
    Assignee: 3M Innovative Properties Company
    Inventors: Denis Duchesne, Klaus Hintzer, Harald Kaspar, Kai H. Lochhaas, Per M. Nelson, Jens C. Schrooten, Karl D. Weilandt, Tilman C. Zipplies
  • Patent number: 10751262
    Abstract: The invention relates to a curable dental composition comprising a cationically hardenable compound (A) comprising at least two aziridine moieties, a starter (B) being suitable to cure the hardenable compound (A), polymeric particles as filler component (C), the polymeric particles having a maximum particle size of 150 ?m or below and the component(s) the polymeric particles are made of being based on fluoropolymers comprising more than 99% monomer repeating units of tetra fluoro ethylene. The invention also relates to the use of such composition for producing a dental impression material or a dental retraction material.
    Type: Grant
    Filed: December 8, 2015
    Date of Patent: August 25, 2020
    Assignee: 3M INNOVATIVE PROPERTIES COMPANY
    Inventors: Andreas R. Maurer, Hendrik Grupp, Joachim W. Zech, Arne Thaler, Kai H. Lochhaas, Klaus Hintzer, Christoph Schulte
  • Patent number: 10730980
    Abstract: A copolymer having tetrafluoroethylene units, hexafluoropropylene units, and units independently represented by formula in a range from 0.02 to 2 mole percent, based on the total amount of the copolymer. Rf is a linear or branched perfluoroalkyl group having from 1 to 8 carbon atoms and optionally interrupted by one or more —O— groups, z is 1 or 2, each n is independently from 1 to 6, and m is 0 or 1. The copolymer has a melt flow index in a range from 25 grams per 10 minutes to 35 grams per 10 minutes and has a combined number of unstable end groups and —CF2H end groups in a range from 25 per 106 carbon atoms up to 120 per 106 carbon atoms. The copolymer can be extruded to make articles, such as insulated cables. A method of making the copolymer is also disclosed.
    Type: Grant
    Filed: February 12, 2016
    Date of Patent: August 4, 2020
    Assignee: 3M Innovative Properties Company
    Inventors: Denis Duchesne, Klaus Hintzer, Harald Kaspar, Kai H. Lochhaas, Per M. Nelson, Jens C. Schrooten, Karl D. Weilandt, Tilman C. Zipplies
  • Patent number: 10717795
    Abstract: A copolymer having tetrafluoroethylene units, hexafluoropropylene units, and units independently represented by formula in a range from 0.001 to 2 mole percent, based on the total amount of the copolymer. In these units, a is 0 or 1, each b is independently from 1 to 4, c is 0 to 4, d is 0 or 1, and e is 1 to 6. In the —SO2X groups, X is independently —F, —NH2, —OH, or —OZ, wherein Z is independently a metallic cation or a quaternary ammonium cation. The copolymer has a melt flow index in a range from 20 grams per 10 minutes to 40 grams per 10 minutes. The copolymer can be extruded to make articles, such as insulated cables. A method of making the copolymer is also disclosed.
    Type: Grant
    Filed: February 12, 2016
    Date of Patent: July 21, 2020
    Assignee: 3M Innovative Properties Company
    Inventors: Denis Duchesne, Klaus Hintzer, Harald Kaspar, Kai H. Lochhaas, Jens Schrooten, Tilman C. Zipplies
  • Patent number: 10703833
    Abstract: Described herein is a polymer comprising: interpolymerized units of (i) a fluorinated terminal alkene monomer and (ii) a tertiary amine-containing fluorinated monomer comprising at least one of a vinyl amine, a substituted vinyl amine, an allyl amine, a substituted allyl amine, and combinations thereof; wherein the polymer can be amorphous or semi-crystalline with a melting point no greater than 325° C. Dispersions thereof and methods of making and using the same are also described.
    Type: Grant
    Filed: December 13, 2016
    Date of Patent: July 7, 2020
    Assignee: 3M Innovative Properties Company
    Inventors: Michael J. Bulinski, Michael G. Costello, Denis Duchesne, Klaus Hintzer, William M. Lamanna, Kai H. Lochhaas, Michael J. Parent, Sean M. Smith
  • Patent number: 10676555
    Abstract: A copolymer having tetrafluoroethylene units and units independently represented by formula (I) in a range from 0.02 to 2 mole percent, based on the total amount of the copolymer. Rf is a linear or branched perfluoroalkyl group having from 1 to 8 carbon atoms and optionally interrupted by one or more —O— groups, each n is independently from 1 to 6, m is 0 or 1, and z is 0, 1, or 2. The copolymer has a melt flow index in a range from 20 grams per 10 minutes to 40 grams per 10 minutes and has in a range from 2 to 200 —SO2X groups per 106 carbon atoms and up to 100 unstable end groups per 106 carbon atoms. The copolymer can be extruded to make articles, such as insulated cables. A method of making the copolymer is also disclosed.
    Type: Grant
    Filed: February 12, 2016
    Date of Patent: June 9, 2020
    Assignee: 3M Innovative Properties Company
    Inventors: Denis Duchesne, Klaus Hintzer, Harald Kaspar, Kai H. Lochhaas, Jens Schrooten, Tilman C. Zipplies
  • Publication number: 20200055971
    Abstract: Described herein is a peroxide curable, partially fluorinated polymer derived from: (a) comonomers comprising: (i) 5-28 wt. % of tetrafluoroethylene; (ii) 30-70 wt. % of vinylidene fluoride; and (iii) a monomer selected from 10-45 wt. % of hexafluoropropylene and 10-40 wt, % of a perfluoro ether monomer of the formula Rf-0-(CF2)n—CF?CF2 wherein n is 1 or 0, and Rf represents a perfluoroalkyl residue which may or may not be interrupted by one or more than one oxygen atoms; (b) 0.01-2 wt % of a perfluorinated iodinated vinyl ether based on the total amount of comonomer, wherein the perfluorinated iodinated vinyl ether has the formula: F2C?CF—(CF2)m(0)o—(CF2)n—O—(CF2)p—I where m is 0 or 1; n is an integer of 0-5: o is 0 or 1: and p is an integer of 1-5, wherein when n is 0, o is 0; and (c) 0.01-2 wt % of a chain transfer agent based on the total amount of comonomers wherein the chain transfer agent consists of a diiodo-fluoroalkane and a diiodo-methane.
    Type: Application
    Filed: November 3, 2017
    Publication date: February 20, 2020
    Inventors: Klaus Hintzer, Florian D. Jochum, Harald Kaspar, Kai H. Lochhaas, Tilman C. Zipplies
  • Patent number: 10557031
    Abstract: A composition includes an amorphous fluoropolymer having at least one of: a segment represented by formula I: —CF(Rf)—(CX2)n—(CX2CXR)m—O—R?fOk—(CXR?CX2)p—(CX2)q—CF(R?f)— (I); or a terminal segment represented by formula III: Rf—CF(I)—(CX2)n—(CX2CXR)m—O—R?fOk—(CXR?CX2)p—(CX2)q—CF(R?f)— (III), and fluoroplastic particles having a mean particle size of less than 500 nanometers. Each X is independently F, H, or Cl; Rf and R?f are each independently F or a monovalent perfluoroalkyl having 1 to 3 carbon atoms; R is F or a partially fluorinated or perfluorinated alkyl having 1 to 3 carbon atoms; R?f is a divalent fluoroalkylene having 1 to 8 carbon atoms or a divalent fluorinated alkylene ether having 1 to 20 carbon atoms and at least one ether linkage; k is 0 or 1; and n, m, p, and q are each independently an integer from 0 to 5, with the proviso that when k is 0, n+m is at least 1 and p+q is at least 1. A method of making the composition is also provided.
    Type: Grant
    Filed: October 19, 2016
    Date of Patent: February 11, 2020
    Assignee: 3M Innovative Properties Company
    Inventors: Tamon Aoki, Allen M. Sohlo, Yuta Suzuki, Kai H. Lochhaas, Florian D. Jochum, Klaus Hintzer, Tilman C. Zipplies
  • Patent number: 10227484
    Abstract: Described herein is a composition comprising (i) a hydrofluorothermoplastic polymer, wherein the hydrofluorothermoplastic polymer is derived from: (a) 50-85 mol % tetrafluoroethene; (b) 2-15 mol % hexafluoropropene; (c) 10-35 mol % vinylidene fluoride; and (d) 0.1 to 5 mol % of a bromine-containing monomer; and (ii) a perhalogenated thermoplastic polymer. Such compositions can be used in multilayer constructions in, for example, fuel hose applications.
    Type: Grant
    Filed: August 13, 2015
    Date of Patent: March 12, 2019
    Assignee: 3M Innovative Properties Company
    Inventors: Lisa P. Chen, Klaus Hintzer, Harald Kaspar, Kai H. Lochhaas, Mark W. Muggli, Jens Schrooten, Allen M. Sohlo, Helmut Traunspurger, Karl D. Weilandt, Tilman C. Zipplies
  • Patent number: 10208223
    Abstract: A fluoropolymer coating composition is described comprising an aqueous liquid medium, fluoropolymer particles dispersed in the aqueous liquid medium, and at least one aziridine compound. The aziridine compound comprises at least two aziridine groups (i.e. polyaziridine) or at least one aziridine group and at least one alkoxy silane group. In another embodiment, an article is described comprising a substrate wherein a surface of the substrate comprises a coating comprising fluoropolymer particles; and a reaction product of at least one aziridine compound comprising at least two aziridine groups or at least one aziridine group and at least one alkoxy silane group. The coating can be utilized as a primer for bonding a non-fluorinated substrate to a fluoropolymer film and/or the coating can be used as an (e.g. outer exposed) surface layer. In some embodiments, the article may be the (e.g. backside) film of a photovoltaic module.
    Type: Grant
    Filed: April 13, 2018
    Date of Patent: February 19, 2019
    Assignee: 3M Innovative Properties Company
    Inventors: Naiyong Jing, Kai H. Lochhaas, Kevin M. Hamer, Thomas J. Blong, Timothy D. Fletcher, Zhigang Yu, Michael Juergens
  • Publication number: 20180319908
    Abstract: Described herein is a polymer comprising: interpolymerized units of (i) a fluorinated terminal alkene monomer and (ii) a tertiary amine-containing fluorinated monomer comprising at least one of a vinyl amine, a substituted vinyl amine, an allyl amine, a substituted allyl amine, and combinations thereof; wherein the polymer can be amorphous or semi-crystalline with a melting point no greater than 325C. Dispersions thereof and methods of making and using the same are also described.
    Type: Application
    Filed: December 13, 2016
    Publication date: November 8, 2018
    Inventors: Michael J. Bulinski, Michael G. Costello, Denis Duchesne, Klaus Hintzer, William M. Lamanna, Kai H. Lochhaas, Michael J. Parent, Sean M. Smith
  • Publication number: 20180312678
    Abstract: A composition includes an amorphous fluoropolymer having at least one of: a segment represented by formula I: —CF(Rf)—(CX2)n—(CX2CXR)m—O—R?fOk—(CXR?CX2)p—(CX2)q—CF(R?f)— (I); or a terminal segment represented by formula III: Rf—CF(I)—(CX2)n—(CX2CXR)m—O—R?fOk—(CXR?CX2)p—(CX2)q—CF(R?f)— (III), and fluoroplastic particles having a mean particle size of less than 500 nanometers. Each X is independently F, H, or Cl; Rf and R?f are each independently F or a monovalent perfluoroalkyl having 1 to 3 carbon atoms; R is F or a partially fluorinated or perfluorinated alkyl having 1 to 3 carbon atoms; R?f is a divalent fluoroalkylene having 1 to 8 carbon atoms or a divalent fluorinated alkylene ether having 1 to 20 carbon atoms and at least one ether linkage; k is 0 or 1; and n, m, p, and q are each independently an integer from 0 to 5, with the proviso that when k is 0, n+m is at least 1 and p+q is at least 1. A method of making the composition is also provided.
    Type: Application
    Filed: October 19, 2016
    Publication date: November 1, 2018
    Inventors: Tamon Aoki, Allen M. Sohlo, Yuta Suzuki, Kai H. Lochhaas, Florian D. Jochum, Klaus Hintzer, Tilman C. Zipplies
  • Patent number: 10087322
    Abstract: Described herein is a composition comprising a fluorothermoplastic polymer, wherein the fluorothermoplastic polymer is derived from: (a) 60-85 mol % tetrafluoroethene; (b) 2-12 mol % hexafluoropropene; (c) 10-30 mol % vinylidene fluoride; (d) 0.2 to 5 mol % of a bromine-containing monomer. Such compositions can be used in multilayer constructions in, for example, fuel hose applications.
    Type: Grant
    Filed: August 11, 2015
    Date of Patent: October 2, 2018
    Assignee: 3M Innovative Properties Company
    Inventors: Lisa P. Chen, Klaus Hintzer, Harald Kaspar, Kai H. Lochhaas, Mark W. Muggli, Jens Schrooten, Allen M. Sohlo, Helmut Traunspurger, Karl D. Weilandt, Tilman C. Zipplies
  • Publication number: 20180273663
    Abstract: A method of making a copolymer is disclosed. The method includes copolymerizing components including tetrafluoroethylene and a compound represented by formula CF2?CF—O—(CF2)a—SO2—X, wherein “a” is a number from 1 to 4, and X is —NZH, —NZ—SO2—(CF2)1-6—SO2X?, or —OZ, wherein Z is independently a hydrogen, an alkali metal cation, or a quaternary ammonium cation, and wherein X is independently —NZH or —OZ. The components include at least 60 mole % of tetrafluoroethylene based on the total amount of components. A copolymer prepared by the method is also provided. A method of making a membrane using the copolymer is also provided. The present disclosure also provides a polymer electrolyte membrane that includes a copolymer made by the method and a membrane electrode assembly that includes such a polymer electrolyte membrane.
    Type: Application
    Filed: September 22, 2016
    Publication date: September 27, 2018
    Inventors: Gregg D. Dahlke, Denis Duchesne, Klaus Hintzer, Markus E. Hirschberg, Kai H. Lochhaas, Arne Thaler, Tilman C. Zipplies
  • Publication number: 20180237654
    Abstract: A fluoropolymer coating composition is described comprising an aqueous liquid medium, fluoropolymer particles dispersed in the aqueous liquid medium, and at least one aziridine compound. The aziridine compound comprises at least two aziridine groups (i.e. polyaziridine) or at least one aziridine group and at least one alkoxy silane group. In another embodiment, an article is described comprising a substrate wherein a surface of the substrate comprises a coating comprising fluoropolymer particles; and a reaction product of at least one aziridine compound comprising at least two aziridine groups or at least one aziridine group and at least one alkoxy silane group. The coating can be utilized as a primer for bonding a non-fluorinated substrate to a fluoropolymer film and/or the coating can be used as an (e.g. outer exposed) surface layer. In some embodiments, the article may be the (e.g. backside) film of a photovoltaic module.
    Type: Application
    Filed: April 13, 2018
    Publication date: August 23, 2018
    Inventors: Naiyong Jing, Kai H. Lochhaas, Kevin M. Hamer, Thomas J. Blong, Timothy D. Fletcher, Zhigang Yu, Michael Juergens
  • Patent number: 9982091
    Abstract: Described herein is a peroxide curable, highly fluorinated elastomer derived from (a) a fluorinated di-iodo ether compound of the following formula I: Rf—CF(I)—(CX2)n—(CX2CXR)m—O—R?f-Ok—(CXR?CX2)p—(CX2)q—CF(I)—R?f wherein X is independently selected from F, H, and Cl; Rf and R?f are independently selected from F and a monovalent perfluoroalkane having 1-3 carbons; R is F, or a partially fluorinated or perfluorinated alkane comprising 1-3 carbons; R?f is a divalent fluoroalkylene having 1-5 carbons or a divalent fluorinated alkylene ether having 1-8 carbons and at least one ether linkage; k is 0 or 1; and n, m, and p are independently selected from an integer from 0-5, with the proviso that when k is 0, n+m is at least 1 and p+q is at least 1; and (b) a fluorinated monomer.
    Type: Grant
    Filed: March 3, 2015
    Date of Patent: May 29, 2018
    Assignee: 3M Innovative Properties Company
    Inventors: Klaus Hintzer, Florian D. Jochum, Harald Kaspar, Kai H. Lochhaas, Tilman C. Zipplies, Tatsuo Fukushi