Patents by Inventor David P. Parkes

David P. Parkes 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).

  • Patent number: 5397645
    Abstract: A reaction mixture for preparation of a fire resistant composition comprising an epoxy resin, a curing agent for said resin and a boron compound which is not a curing agent for the epoxy resin, the reaction mixture being translucent such that the reaction mixture cures to a translucent reaction product. The invention further provides a method of producing a fire resistant laminate in which the cured reaction product of a boron compound containing epoxy resin is used as an interlayer between two translucent panes and to a translucent fire resistant laminate.
    Type: Grant
    Filed: February 19, 1992
    Date of Patent: March 14, 1995
    Assignee: Pilkington PLC
    Inventors: Karikath S. Varma, David P. Parkes