Patents by Inventor Peter R. Saunders

Peter R. Saunders 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).

  • Low moisture absorption abrasive bristle of polybutylene terephthalate
    Patent number: 4585464
    Abstract: A bristle material is disclosed having improved stiffness comprised of a thermoplastic matrix comprising polybutylene terephthalate and containing an abrasive filler.
    Type: Grant
    Filed: May 20, 1985
    Date of Patent: April 29, 1986
    Assignee: Allied Corporation
    Inventors: John C. Haylock, Peter R. Saunders, Garland L. Turner, Ian C. Twilley
  • Nylon comfort fiber containing poly(N,N-dimethylacrylamide)
    Patent number: 4558097
    Abstract: This invention is a nylon fiber useful for improved comfort for wearers of apparel fabric made therefrom comprising (a) from about 5 to 15 percent by weight of poly (N,N-dimethylacrylamide) having a molecular weight which in a 25% aqueous solution gives a viscosity of from about 20 to 1 000 centipoise (0.02 to 1.0 Pa.s) at 25.degree. C. and (b) correspondingly from about 85 to 95% by weight nylon.
    Type: Grant
    Filed: May 11, 1984
    Date of Patent: December 10, 1985
    Assignee: Allied Corporation
    Inventors: Robert A. Lofquist, Ian C. Twilley, Peter R. Saunders
  • Low moisture absorption bristle of nylon and polyester
    Patent number: 4507361
    Abstract: A bristle material is disclosed having improved stiffness, and comprised of a thermoplastic matrix comprising a blend of nylon and polyester and containing an abrasive filler.
    Type: Grant
    Filed: July 18, 1983
    Date of Patent: March 26, 1985
    Assignee: Allied Corporation
    Inventors: Ian C. Twilley, Garland L. Turner, Peter R. Saunders, John C. Haylock
  • Nylon comfort fiber containing poly(N,N-dimethylacrylamide)
    Patent number: 4458053
    Abstract: This invention is a nylon fiber useful for improved comfort for wearers of apparel fabric made therefrom comprising (a) from about 5 to 15 percent by weight of poly (N,N-dimethylacrylamide) having a molecular weight which in a 25% aqueous solution gives a viscosity of from about 20 to 1 000 centipoise (0.02 to 1.0 Pa.s) at 25.degree. C. and (b) correspondingly from about 85 to 95% by weight nylon.
    Type: Grant
    Filed: October 31, 1983
    Date of Patent: July 3, 1984
    Assignee: Allied Corporation
    Inventors: Robert A. Lofquist, Ian C. Twilley, Peter R. Saunders
  • Method of preparation of fluorocarbon compounds
    Patent number: 4329489
    Abstract: Preparation of a fluorocarbon compound used to make a soil-resistant yarn is improved by removing most of the impurities from the fluoro-carbon compound mass with heat and vacuum after the final washing step and then adding an emulsifier to the fluorocarbon compound mass so that the mass can be handled as a liquid concentrate rather than a tacky solid.
    Type: Grant
    Filed: May 19, 1980
    Date of Patent: May 11, 1982
    Assignee: Allied Chemical Corporation
    Inventors: Peter R. Saunders, Raymond J. Biron
  • Substituted thioureas to inhibit ozone fading of dyed polyamides
    Patent number: 4105404
    Abstract: When from about 0.5% to about 5% of N,N'-disubstituted thioureas are coated on nylon fiber, improved dyefastness is achieved compared to an untreated dyed nylon fiber when this fiber is exposed to ozone.
    Type: Grant
    Filed: October 1, 1973
    Date of Patent: August 8, 1978
    Assignee: Allied Chemical Corporation
    Inventors: Robert A. Lofquist, Peter R. Saunders