Patents by Inventor Franz Marz

Franz Marz 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).

  • Fluoroelastomers having low temperature characteristics and solvent resistance
    Patent number: 6864336
    Abstract: The present invention is based on quad-fluoropolymer suitable for the preparation of a fluoroelastomer. The fluoropolymer comprises repeating units derived from 10 to 40 mol % of tetrafluoroethylene, 40 to 65 mol % of vinylidene fluoride, 1 to 30 mol % of a perfluorinated vinyl ether of the formula CF2?CFOCF2CF2CF2OCF3, 1 to 20 mol % of perfluoromethyl vinylether.
    Type: Grant
    Filed: September 11, 2003
    Date of Patent: March 8, 2005
    Assignee: 3M Innovative Properties Company
    Inventors: Harald Kaspar, Klaus Hintzer, Guy van Gool, Franz März, Allan T. Worm, Tatsuo Fukushi
  • Process for making a fluoropolymer having nitrile end groups
    Patent number: 6825300
    Abstract: The present invention discloses a process for making a fluoropolymer having nitrile endgroups. The process comprises a free radical polymerization of one or more fluorinated monomers in the presence of a nitrile group containing salt or a nitrile group containing pseudohalogen compound.
    Type: Grant
    Filed: November 14, 2003
    Date of Patent: November 30, 2004
    Assignee: 3M Innovative Properties Company
    Inventors: Werner M. A. Grootaert, Klaus Hintzer, Kai Helmut Lochhaas, Gernot Löhr, Franz März
  • Process for producing fluoropolymers having a reduced amount of polar end groups
    Patent number: 6812310
    Abstract: A fluoropolymer having a reduced amount of polar end groups. The fluoropolymer is produced by free radical polymerization of fluorinated monomers and the initiation of the polymerization is carried out in the presence of a chloride salt. Polar end groups include hydroxy groups and ionized or ionizable end groups. Examples of ionized or ionizable end groups include acid groups and salts thereof such as sulfonic acid and salts thereof, —CH2—OSO3H groups, sulfates and carbonyl containing end groups such as carboxylic and carboxylate groups. Due to the presence of chloride salt at the initiation of the free radical polymerization, CF2Cl end groups are formed instead of the polar end groups. As a result, a fluoropolymer is obtained that has improved processibility and heat resistance.
    Type: Grant
    Filed: June 2, 2003
    Date of Patent: November 2, 2004
    Assignee: 3M Innovative Properties Company
    Inventors: Werner M. A. Grootaert, Klaus Hintzer, Bernhard Hirsch, Harald Kaspar, Gernot Löhr, Franz März, Guy Van Gool
  • Fluoroelastomers having low temperature characteristics and solvent resistance
    Publication number: 20040127661
    Abstract: The present invention is based on quad-fluoropolymer suitable for the preparation of a fluoroelastomer. The fluoropolymer comprises repeating units derived from 10 to 40 mol % of tetrafluoroethylene, 40 to 65 mol % of vinylidene fluoride, 1 to 30 mol % of a perfluorinated vinyl ether of the formula CF2═CFOCF2CF2CF2OCF3, 1 to 20 mol % of perfluoromethyl vinylether.
    Type: Application
    Filed: September 11, 2003
    Publication date: July 1, 2004
    Inventors: Harald Kaspar, Klaus Hintzer, Guy van Gool, Franz Marz, Allan T. Worm, Tatsuo Fukushi
  • Process for making a fluoropolymer having nitrile and groups
    Publication number: 20040106754
    Abstract: The present invention discloses a process for making a fluoropolymer having nitrile endgroups. The process comprises a free radical polymerization of one or more fluorinated monomers in the presence of a nitrile group containing salt or a nitrile group containing pseudohalogen compound.
    Type: Application
    Filed: November 14, 2003
    Publication date: June 3, 2004
    Applicant: 3M Innovative Properties Company
    Inventors: Werner M.A. Grootaert, Klaus Hintzer, Kai Helmut Lochhaas, Gernot Lohr, Franz Marz
  • Polymers containing perfluorovinyl ethers and applications for such polymers
    Patent number: 6737489
    Abstract: A fluorochemical composition for rendering a fibrous substrate oil and/or water repellent which comprises a solution or dispersion of a fluoropolymer having a partially or fully fluorinated backbone and comprising one or more repeating units corresponding to the general formula: wherein Rf represents a perfluorinated organic group having a chain length of at least 2 atoms and having at least one carbon atom and optional auxiliary components.
    Type: Grant
    Filed: May 21, 2001
    Date of Patent: May 18, 2004
    Assignee: 3M Innovative Properties Company
    Inventors: Jeffrey G. Linert, E. Steven McAlister, Lian S. Tan, Richard S. Buckanin, Naiyong Jing, Frans A. Audenaert, Thomas J. Blong, John C. Clark, Linda G. Coté, Harald Kaspar, Franz März
  • Perfluoroelastomers having a low glass transition temperature and method of making them
    Patent number: 6730760
    Abstract: A method of making a curable fluoroelastomer is disclosed. The method comprises the steps of preemulsifying at least one perfluorovinylether in water, and copolymerizing the preemulsified perfluorovinylether with a gaseous fluorinated monomer in the presence of a cure site monomer. The method provides a fluoroelastomer having a glass transition temperature of less than −10° C. Also disclosed is a fluoroelastomer that consists essentially of a perfluorovinylether of formula (I) as defined below, a cure site component, perfluoromethylvinylether, and tetrafluoroethylene and/or chlorotrifluoroethylene.
    Type: Grant
    Filed: December 11, 2001
    Date of Patent: May 4, 2004
    Assignee: 3M Innovative Properties Company
    Inventors: Werner M. A. Grootaert, Klaus Hintzer, Franz März, Guy Van Gool, Allan T. Worm, Erik D. Hare
  • Aqueous emulsion polymerization process for the manufacturing of fluoropolymers
    Patent number: 6677414
    Abstract: Emulsion polymerization of liquid fluorinated monomers which have a boiling point above 50° C. and low water-solubility is markedly more efficient if the monomer is pre-emulsified with a nontelogenic fluorinated emulsifier in water.
    Type: Grant
    Filed: December 11, 2001
    Date of Patent: January 13, 2004
    Assignee: 3M Innovative Properties Company
    Inventors: Klaus Hintzer, Gernot Löhr, Franz März
  • Process for producing fluoropolymers having a reduced amount of polar end groups
    Publication number: 20030236370
    Abstract: A fluoropolymer having a reduced amount of polar end groups. The fluoropolymer is produced by free radical polymerization of fluorinated monomers and the initiation of the polymerization is carried out in the presence of a chloride salt. Polar end groups include hydroxy groups and ionized or ionizable end groups. Examples of ionized or ionizable end groups include acid groups and salts thereof such as sulfonic acid and salts thereof, —CH2—OSO3H groups, sulfates and carbonyl containing end groups such as carboxylic and carboxylate groups. Due to the presence of chloride salt at the initiation of the free radical polymerization, CF2Cl end groups are formed instead of the polar end groups. As a result, a fluoropolymer is obtained that has improved processibility and heat resistance.
    Type: Application
    Filed: June 2, 2003
    Publication date: December 25, 2003
    Applicant: 3M Innovative Properties Company
    Inventors: Werner M.A. Grootaert, Klaus Hintzer, Bernhard Hirsch, Harald Kaspar, Gernot Lohr, Franz Marz, Guy Van Gool
  • Polymers containing perfluorovinyl ethers and applications for such polymers
    Publication number: 20030139521
    Abstract: A fluorochemical composition for rendering a fibrous substrate oil and/or water repellent which comprises a solution or dispersion of a fluoropolymer having a partially or fully fluorinated backbone and comprising one or more repeating units corresponding to the general formula: 1
    Type: Application
    Filed: May 21, 2001
    Publication date: July 24, 2003
    Inventors: Jeffrey G. Linert, E. Steven McAlister, Lian S. Tan, Richard S. Buckanin, Naiyong Jing, Frans A. Audenaert, Thomas J. Blong, John C. Clark, Linda G. Cote, Harald Kaspar, Franz Marz
  • Aqueous emulsion polymerization process for the manufacturing of fluoropolymers
    Publication number: 20030032748
    Abstract: Emulsion polymerization of liquid fluorinated monomers which have a boiling point above 50° C. and low water-solubility is markedly more efficient if the monomer is pre-emulsified with a nontelogenic fluorinated emulsifier in water.
    Type: Application
    Filed: December 11, 2001
    Publication date: February 13, 2003
    Inventors: Klaus Hintzer, Gernot Lohr, Franz Marz
  • Perfluoroelastomers having a low glass transition temperature and method of making them
    Publication number: 20020198345
    Abstract: A method of making a curable fluoroelastomer is disclosed.
    Type: Application
    Filed: December 11, 2001
    Publication date: December 26, 2002
    Inventors: Werner M.A. Grootaert, Klaus Hintzer, Franz Marz, Guy Van Gool, Allan T Worm, Erik D Hare