Patents by Inventor Marcin Jan Otto

Marcin Jan Otto 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).

  • PROCESS FOR FORMING SHAPED ARTICLES COMPRISING CARBON NANOTUBES
    Publication number: 20210331926
    Abstract: A process for manufacturing shaped articles containing carbon nanotubes including the steps of supplying carbon nanotubes in an acidic liquid containing at least one acid, the at least one acid having a Hammett acidity function less than that of 100% sulfuric acid, the at least one acid having a Hammett acidity function equal or more than that of 90% sulfuric acid, and shaping the acidic liquid comprising carbon nanotubes into a shaped article.
    Type: Application
    Filed: January 24, 2018
    Publication date: October 28, 2021
    Applicant: CONYAR BV
    Inventors: Hanneke BOERSTOEL, Monique MEEUSEN-WIERTS, Ronald TER WAARBEEK, Rene LA FAILLE, Jorrit DE JONG, Hendrik MAATMAN, Marcin Jan OTTO
  • Process for spinning graphene ribbon fibers
    Patent number: 8999212
    Abstract: A graphene ribbon fiber manufacturing process, where a coagulation medium flows in the same direction as the graphene ribbon fibers. The process for spinning graphene ribbon fibers starts with unzipping carbon nanotubes to form graphene ribbons, purifying and drying the graphene ribbons and subsequent dissolving of the graphene ribbons in a suitable solvent, preferably a super acid to form a spin-dope. The spin-dope is spun such that the accrued fibers are guided into a coagulation medium, also known as anti-solvent, where the spun or accrued fibers are coagulated. The coagulated graphene ribbon fibers are stripped, neutralized and washed and wound on bobbins.
    Type: Grant
    Filed: March 17, 2011
    Date of Patent: April 7, 2015
    Assignee: Teijin Aramid B.V.
    Inventors: Bernardus Maria Koenders, Jacobus Johannes Meerman, Stephanus Maria Kamperman, Ron Folkert Waarbeek Ter, Jorrit Jong De, Angelique Antonia Theresia Hendrikus Radier, Marcin Jan Otto
  • CARBON NANOTUBES FIBER HAVING LOW RESISTIVITY, HIGH MODULUS AND/OR HIGH THERMAL CONDUCTIVITY AND A METHOD OF PREPARING SUCH FIBERS BY SPINNING USING A FIBER SPIN-DOPE
    Publication number: 20140363669
    Abstract: Carbon nanotubes (CNT) fibers having a resistivity lower than 120 ??*cm are prepared by a wet spinning process including the steps of supplying a spin-dope of carbon nanotubes to a spinneret, extruding the spin-dope through at least one spinning hole in the spinneret to form spun carbon nanotubes fibers, and coagulating the spun carbon nanotubes fibers in a coagulation medium to form coagulated carbon nanotubes fibers. The carbon nanotubes fibers are drawn at a draw ratio higher than 1.0. The carbon nanotubes have a length of at least 0.5 ?m. The carbon nanotubes fibers can further have a resistivity lower than 50 ??*cm. At the same time, the CNT fibers can have high modulus.
    Type: Application
    Filed: September 7, 2012
    Publication date: December 11, 2014
    Applicants: WILLIAM MARSH RICE UNIVERSITY, TEIJIN ARAMID B.V.
    Inventors: Marcin Jan Otto, Jorrit Jong De, Ronald Folkert Waarbeek Ter, Ronald Edward Hoogerwerf, Anson Ma, Natnael Behabtu, Dmitri Tsentalovich, Colin Young, Matteo Pasquali
  • PROCESS FOR SPINNING GRAPHENE RIBBON FIBERS
    Publication number: 20130009337
    Abstract: A graphene ribbon fiber manufacturing process, where a coagulation medium flows in the same direction as the graphene ribbon fibers. The process for spinning graphene ribbon fibers starts with unzipping carbon nanotubes to form graphene ribbons, purifying and drying the graphene ribbons and subsequent dissolving of the graphene ribbons in a suitable solvent, preferably a super acid to form a spin-dope. The spin-dope is spun such that the accrued fibers are guided into a coagulation medium, also known as anti-solvent, where the spun or accrued fibers are coagulated. The coagulated graphene ribbon fibers are stripped, neutralized and washed and wound on bobbins.
    Type: Application
    Filed: March 17, 2011
    Publication date: January 10, 2013
    Applicant: TEIJIN ARAMID B.V.
    Inventors: Bernardus Maria Koenders, Jacobus Johannes Meerman, Stephanus Maria Kamperman, Ron Folkert Waarbeek Ter, Jorrit Jong De, Angelique Antonia Theresia Hendrikus Radier, Marcin Jan Otto