Patents by Inventor Jens C. Schrooten

Jens C. Schrooten 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).

  • Tetrafluoroethylene/hexafluoropropylene copolymers including perfluoroalkoxyalkyl pendant groups and methods of making and using the same
    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
  • Tetrafluoroethylene/hexafluoropropylene copolymers including perfluoroalkoxyalkyl pendant groups
    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
  • TETRAFLUOROETHYLENE/HEXAFLUOROPROPYLENE COPOLYMERS INCLUDING PERFLUOROALKOXYALKYL PENDANT GROUPS AND METHODS OF MAKING AND USING THE SAME
    Publication number: 20180066090
    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: Application
    Filed: February 12, 2016
    Publication date: March 8, 2018
    Inventors: Denis Duchesne, Klaus Hintzer, Harald Kaspar, Kai H. Lochhaas, Per M. Nelson, Jens C. Schrooten, Karl D. Weilandt, Tilman C. Zipplies
  • TETRAFLUOROETHYLENE/HEXAFLUOROPROPYLENE COPOLYMERS INCLUDING PERFLUOROALKOXYALKYL PENDANT GROUPS
    Publication number: 20180030184
    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: Application
    Filed: February 12, 2016
    Publication date: February 1, 2018
    Inventors: Denis Duchesne, Klaus Hintzer, Harald Kaspar, Kai H. Lochhaas, Per M. Nelson, Jens C. Schrooten, Karl D. Weilandt, Tilman C. Zipplies