Patents by Inventor Robert W. Pelz

Robert W. Pelz 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 modules glass fibers and laminate reinforced with same
    Patent number: 4101709
    Abstract: Improved, low modulus glass fibers for the production of glass fiber reinforced, high energy absorption resin laminates, said glass having a modulus of elasticity of from about 5.0 to about 6.5 .times. 10.sup.6 psi, the composition of said fibers being generally of the alkali borosilicate type, the major portion thereof comprising from about 40-65 weight percent SiO.sub.2, 24-38 weight percent B.sub.2 O.sub.3, and 5-20 weight percent alkali.A high energy absorption resin laminate comprising the combination of a plastic resin composition reinforced with said fibers.
    Type: Grant
    Filed: April 25, 1973
    Date of Patent: July 18, 1978
    Assignee: Reichhold Chemicals, Inc.
    Inventors: Tack J. Whang, Robert W. Pelz