Patents by Inventor Nathan Heldenbrand

Nathan Heldenbrand 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).

  • Compositions and methods for gel spinning of polyamides
    Patent number: 11078601
    Abstract: A composition for forming a fiber includes at least one polyamide and caprolactam. The at least one polyamide has a number average molecular weight between 38,000 Da and 100,000 Da. The polyamide is at least partially dissolved in the caprolactam. The caprolactam comprises between 20 wt. % and 90 wt. % of the composition.
    Type: Grant
    Filed: February 13, 2018
    Date of Patent: August 3, 2021
    Assignee: AdvanSix Resins & Chemicals LLC
    Inventors: Terry Chern, Nathan Heldenbrand, Yue Hu, John A. Young, David J. Loy, James A. Kweeder
  • COMPOSITIONS AND METHODS FOR GEL SPINNING OF POLYAMIDES
    Publication number: 20190382921
    Abstract: A composition for forming a fiber includes at least one polyamide and caprolactam. The at least one polyamide has a number average molecular weight between 38,000 Da and 100,000 Da. The polyamide is at least partially dissolved in the caprolactam. The caprolactam comprises between 20 wt. % and 90 wt. % of the composition.
    Type: Application
    Filed: February 13, 2018
    Publication date: December 19, 2019
    Inventors: Terry Chern, Nathan Heldenbrand, Yue HU, John A. Young, David J. Loy, James A. Kweeder