Patents by Inventor Bradley R. Fenbert

Bradley R. Fenbert 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).

  • Prepreg with variable cure rate resin composition
    Patent number: 10668647
    Abstract: A prepreg comprising a layer of impregnated reinforcing fibers comprising at least one layer of reinforcing fibers impregnated by a resin composition comprising at least a thermosetting resin, a curing agent and an accelerator, such that the accelerator has a gradient concentration which is more concentrated in the resin composition in the vicinity of the reinforcing fibers than further away. The resin composition comprising a first resin composition impregnates the reinforcing fibers to provide a layer of impregnated reinforcing fibers and a surface layer comprising a second resin composition is formed on the layer of impregnated reinforcing fibers, wherein the first resin composition has at least one peak exotherm occurring at a time earlier than and/or at a temperature lower than any peak exotherm of the second resin composition.
    Type: Grant
    Filed: September 27, 2016
    Date of Patent: June 2, 2020
    Assignee: TORAY INDUSTRIES, INC.
    Inventors: Felix N. Nguyen, Alfred P. Haro, Bradley R. Fenbert
  • PREPREG WITH VARIABLE CURE RATE RESIN COMPOSITION
    Publication number: 20180290339
    Abstract: A prepreg comprising a layer of impregnated reinforcing fibers comprising at least one layer of reinforcing fibers impregnated by a resin composition comprising at least a thermosetting resin, a curing agent and an accelerator, such that the accelerator has a gradient concentration which is more concentrated in the resin composition in the vicinity of the reinforcing fibers than further away. The resin composition comprising a first resin composition impregnates the reinforcing fibers to provide a layer of impregnated reinforcing fibers and a surface layer comprising a second resin composition is formed on the layer of impregnated reinforcing fibers, wherein the first resin composition has at least one peak exotherm occurring at a time earlier than and/or at a temperature lower than any peak exotherm of the second resin composition.
    Type: Application
    Filed: September 27, 2016
    Publication date: October 11, 2018
    Applicant: TORAY INDUSTRIES, INC.
    Inventors: Felix N. Nguyen, Alfred P. Haro, Bradley R. Fenbert