Patents by Inventor Christopher Robert MASON

Christopher Robert MASON 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).

  • Or relating to curing agents
    Patent number: 11939421
    Abstract: A curative system comprising a combination of adipic acid dihydrazide and/or isophthalic dihydrazide and a clathrate in which the guest compound of the clathrate comprises an imidazole, an imidazoline or diazabicycloalkanes (DBCA).
    Type: Grant
    Filed: August 30, 2019
    Date of Patent: March 26, 2024
    Assignee: HEXCEL COMPOSITES LIMITED
    Inventors: Christopher Robert Mason, Nicholas Verge
  • Curatives
    Patent number: 11879052
    Abstract: The host compound in a clathrate is an amino or hydroxyl containing aromatic phosphorous compound, clathrates containing a resin curative and their use in curable resin compositions to produce moulded articles particularly fibre reinforced articles.
    Type: Grant
    Filed: April 17, 2020
    Date of Patent: January 23, 2024
    Assignee: HEXCEL COMPOSITES LIMITED
    Inventor: Christopher Robert Mason
  • Curative composition and a resin composition containing the curative composition
    Patent number: 11702516
    Abstract: This invention relates to a curative composition and its use in curing epoxy resins and prepregs, adhesives and moulded materials derived therefrom. The curative composition comprises a clathrate comprising a host component and a guest component, the host comprising a carboxylic acid or ester compounds as defined or phenolphthalin and the guest comprising an imidazole or imidazoline component.
    Type: Grant
    Filed: December 20, 2018
    Date of Patent: July 18, 2023
    Assignee: HEXCEL COMPOSITES LIMITED
    Inventors: David Allan Tilbrook, Christopher Robert Mason, Martin Richard Simmons
  • IMPROVEMENTS IN OR RELATING TO CURATIVES
    Publication number: 20230167272
    Abstract: The host compound in a clathrate is an amino or hydroxyl containing aromatic phosphorous compound, clathrates containing a resin curative and their use in curable resin compositions to produce moulded articles particularly fibre reinforced articles.
    Type: Application
    Filed: April 17, 2020
    Publication date: June 1, 2023
    Applicant: HEXCEL COMPOSITES LIMITED
    Inventor: Christopher Robert MASON
  • IMPROVEMENTS IN OR RELATING TO CURING AGENTS
    Publication number: 20210198420
    Abstract: A curative system comprising a combination of adipic acid dihydrazide and/or isophthalic dihydrazide and a clathrate in which the guest compound of the clathrate comprises an imidazole, an imidazoline or diazabicycloalkanes (DBCA).
    Type: Application
    Filed: August 30, 2019
    Publication date: July 1, 2021
    Applicant: HEXCEL COMPOSITES LIMITED
    Inventors: Christopher Robert MASON, Nicholas VERGE
  • A CURATIVE COMPOSITION AND A RESIN COMPOSITION CONTAINING THE CURATIVE COMPOSITION
    Publication number: 20200385536
    Abstract: This invention relates to a curative composition and its use in curing epoxy resins and prepregs, adhesives and moulded materials derived therefrom. The curative composition comprises a clathrate comprising a host component and a guest component, the host comprising a carboxylic acid or ester compounds as defined or phenolphthalin and the guest comprising an imidazole or imidazoline component.
    Type: Application
    Filed: December 20, 2018
    Publication date: December 10, 2020
    Applicant: HEXCEL COMPOSITES LIMITED
    Inventors: David Allan TILBROOK, Christopher Robert MASON, Martin Richard SIMMONS