Patents by Inventor Thomas J. Hyde

Thomas J. Hyde 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).

  • Filled polyamide compositions with silanes and sulfonamides
    Patent number: 4399246
    Abstract: This invention is directed to a composition of matter which is derived from 50 to 75 parts of polyamide resin with a number average molecular weight of at least 11,000, plus 25 to 50 parts of a selected mineral filler, 0.2 to 0.9 parts of aminofunctional silane, and 0.2 to 0.9 parts of a selected sulfonamide. The composition provides molded parts with significantly improved falling-weight impact resistance at no sacrifice of rigidity under a wide variety of processing conditions.
    Type: Grant
    Filed: August 6, 1982
    Date of Patent: August 16, 1983
    Assignee: E. I. Du Pont de Nemours & Co.
    Inventor: Thomas J. Hyde
  • Methacrylate polymer mix containing alkaline earth metal resinate
    Patent number: 4346183
    Abstract: The addition of an alkaline earth metal resinate to methacrylate polymer concrete mix can produce a wet concrete with good workability.
    Type: Grant
    Filed: July 29, 1981
    Date of Patent: August 24, 1982
    Assignee: E. I. Du Pont de Nemours and Company
    Inventor: Thomas J. Hyde
  • Methacrylate polymer concrete mix with reduced shrinkage during cure comprising (a) paraffinic oil and (b) C.sub.2 -C.sub.4 alkyl methacrylate
    Patent number: 4341673
    Abstract: The tendency of uncured methacrylate polymer concrete to shrink during curing is reduced by the presence of a selected paraffinic oil and a polymer of a C.sub.2 -C.sub.4 alkyl methacrylate. The oil and the polymer are present in the liquid mixture component.
    Type: Grant
    Filed: June 15, 1981
    Date of Patent: July 27, 1982
    Assignee: E. I Du Pont de Nemours and Company
    Inventor: Thomas J. Hyde