Patents by Inventor Alfred Gerald Edwards

Alfred Gerald Edwards 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).

  • Curable resin compositions
    Patent number: 4108822
    Abstract: Aralkylene-phenol resins may be cured by reaction with 5 - 90% of condensates of formaldehyde and a nitrogen containing compound, e.g. melamine to give cured products having high temperature strength and/or a high comparative tracking index.
    Type: Grant
    Filed: August 13, 1975
    Date of Patent: August 22, 1978
    Assignee: Albright & Wilson Ltd.
    Inventors: Alfred Gerald Edwards, Glyn Islwyn Harris
  • Resin compositions
    Patent number: 4020035
    Abstract: Compositions of at least 50% by weight of a resin having repeat units of formula ##STR1## WHEREIN Ar.sup.x is a divalent or trivalent aromatic hydrocarbyl group, optionally substituted, Ar is a phenol residue, and n is 0 or 1 and up to 50% (based on the total weight of resins) of a phenol/aldehyde novolac or resole resin can be cured to form thermoset resins useful in mouldings, laminates, cements and coatings.
    Type: Grant
    Filed: September 16, 1974
    Date of Patent: April 26, 1977
    Assignee: Albright & Wilson Limited
    Inventors: Alfred Gerald Edwards, Glyn Islwyn Harris
  • Cured aromatic resins
    Patent number: 3936510
    Abstract: Cured aromatic resin compositions in which the resin is obtained by reacting (A) the reaction product of a mononuclear aralkyl halide and/or aralkyl ether with a molar excess of a phenol with 1-3 hydroxyl groups attached to the aromatic nucleus with (B) an epoxy compound containing at least two epoxy groups per molecule.
    Type: Grant
    Filed: July 19, 1974
    Date of Patent: February 3, 1976
    Assignee: Albright & Wilson Limited
    Inventors: Glyn Islwyn Harris, Alfred Gerald Edwards