Patents by Inventor Orest Adrianowycz

Orest Adrianowycz 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 of making carbon fibers derived from lignin/carbon residue
    Patent number: 9758905
    Abstract: A method of making a carbon fiber comprising esterification of a lignin precursor with an acid, acid anhydride, or acyl halide, thereby forming a reduced Tg lignin. Mixing the reduced Tg lignin with a carbon residue selected from the group of coal based raw material, petroleum based raw material and combinations thereof, thereby forming a fiber precursor mixture; and spinning the fiber precursor mixture into a fiber. A method of making a carbon fiber comprising esterification of a lignin with an acid derivative, thereby forming a reduced Tg lignin. Mixing the reduced Tg lignin with a pitch, thereby forming a fiber precursor mixture; and spinning the fiber precursor mixture into a fiber. A method of making a carbon fiber comprising lowering the Tg of a lignin material, thereby forming a reduced Tg lignin. Mixing the reduced Tg lignin with a carbon residue, thereby forming a fiber precursor mixture and spinning the fiber precursor mixture into a fiber.
    Type: Grant
    Filed: November 5, 2013
    Date of Patent: September 12, 2017
    Assignee: GrafTech International Holdings Inc.
    Inventors: Bassam Alnasleh, Ching-Feng Chang, Omer Gul, Andrew Hausner, Robert Miller, Orest Adrianowycz
  • CARBON FIBERS DERIVED FROM LIGNIN/CARBON RESIDUE
    Publication number: 20150284880
    Abstract: A method of making a carbon fiber comprising esterification of a lignin precursor with an acid, acid anhydride, or acyl halide, thereby forming a reduced Tg lignin. Mixing the reduced Tg lignin with a carbon residue selected from the group of coal based raw material, petroleum based raw material and combinations thereof, thereby forming a fiber precursor mixture; and spinning the fiber precursor mixture into a fiber. A method of making a carbon fiber comprising esterification of a lignin with an acid derivative, thereby forming a reduced Tg lignin. Mixing the reduced Tg lignin with a pitch, thereby forming a fiber precursor mixture; and spinning the fiber precursor mixture into a fiber. A method of making a carbon fiber comprising lowering the Tg of a lignin material, thereby forming a reduced Tg lignin. Mixing the reduced Tg lignin with a carbon residue, thereby forming a fiber precursor mixture and spinning the fiber precursor mixture into a fiber.
    Type: Application
    Filed: November 5, 2013
    Publication date: October 8, 2015
    Inventors: Bassam Alnasleh, Ching-Feng Chang, Omer Gul, Andrew Hausner, Robert Miller, Orest Adrianowycz