Patents by Inventor ALAIN PREFONTAINE

ALAIN PREFONTAINE 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: 10494508
    Abstract: A method produces a molded part from carbon containing carbon fibers in an amount of less than 20% by weight. The method includes comminuting waste parts or scrap parts formed from a carbon fiber-reinforced synthetic material, a carbon fiber reinforced carbon or a carbon fiber reinforced concrete. A mixture is produced from the comminuted product, a binder such as pitch, a carbon material such as coke and optionally one or more additives, wherein the mixture contains less than 20% by weight of fibers. The mixture is molded into a molded part and the molded part is carbonized. Optionally, the molded carbonized part is impregnated with an impregnating agent. Finally and optionally, the molded carbonized part or the molded part impregnated part is graphitized.
    Type: Grant
    Filed: April 29, 2016
    Date of Patent: December 3, 2019
    Assignee: Showa Denko Carbon Germany GmbH
    Inventors: Martin Christ, Oswin Oettinger, Reiner Bode, Alain Prefontaine, Georg Schwaiger
  • Publication number: 20160237248
    Abstract: A method produces a molded part from carbon containing carbon fibers in an amount of less than 20% by weight. The method includes comminuting waste parts or scrap parts formed from a carbon fiber-reinforced synthetic material, a carbon fiber reinforced carbon or a carbon fiber reinforced concrete. A mixture is produced from the comminuted product, a binder such as pitch, a carbon material such as coke and optionally one or more additives, wherein the mixture contains less than 20% by weight of fibers. The mixture is molded into a molded part and the molded part is carbonized. Optionally, the molded carbonized part is impregnated with an impregnating agent. Finally and optionally, the molded carbonized part or the molded part impregnated part is graphitized.
    Type: Application
    Filed: April 29, 2016
    Publication date: August 18, 2016
    Inventors: MARTIN CHRIST, OSWIN OETTINGER, REINER BODE, ALAIN PREFONTAINE, GEORG SCHWAIGER
  • Patent number: 9352967
    Abstract: A method produces a molded part from carbon containing carbon fibers in an amount of less than 20% by weight. The method includes comminuting waste parts or scrap parts formed from a carbon fiber-reinforced synthetic material, a carbon fiber reinforced carbon or a carbon fiber reinforced concrete. A mixture is produced from the comminuted product, a binder such as pitch, a carbon material such as coke and optionally one or more additives, wherein the mixture contains less than 20% by weight of fibers. The mixture is molded into a molded part and the molded part is carbonized. Optionally, the molded carbonized part is impregnated with an impregnating agent. Finally and optionally, the molded carbonized part or the molded part impregnated part is graphitized.
    Type: Grant
    Filed: August 10, 2012
    Date of Patent: May 31, 2016
    Assignee: SGL Carbon SE
    Inventors: Martin Christ, Oswin Öttinger, Reiner Bode, Alain Prefontaine, Georg Schwaiger
  • Publication number: 20130199412
    Abstract: A method produces a molded part from carbon containing carbon fibers in an amount of less than 20% by weight. The method includes comminuting waste parts or scrap parts formed from a carbon fiber-reinforced synthetic material, a carbon fiber reinforced carbon or a carbon fiber reinforced concrete. A mixture is produced from the comminuted product, a binder such as pitch, a carbon material such as coke and optionally one or more additives, wherein the mixture contains less than 20% by weight of fibers. The mixture is molded into a molded part and the molded part is carbonized. Optionally, the molded carbonized part is impregnated with an impregnating agent. Finally and optionally, the molded carbonized part or the molded part impregnated part is graphitized.
    Type: Application
    Filed: August 10, 2012
    Publication date: August 8, 2013
    Applicant: SGL CARBON SE
    Inventors: MARTIN CHRIST, OSWIN ÖTTINGER, REINER BODE, ALAIN PREFONTAINE, GEORG SCHWAIGER