Patents by Inventor Daniel C. Purvis II

Daniel C. Purvis II 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).

  • Non-flammable contact adhesive
    Patent number: 10988645
    Abstract: A non-flammable contact adhesive includes a solvent composed of a mixture of flammable and non-flammable components. The contact adhesive includes copolymer rubbers, tackifiers, stabilizer resins, and carbon dioxide gas.
    Type: Grant
    Filed: September 5, 2019
    Date of Patent: April 27, 2021
    Assignee: WILSONART LLC
    Inventors: Daniel C. Purvis, II, David A. Altenberg, Kenneth Pechal, Eric Kendall
  • Non-flammable contact adhesive
    Patent number: 10883025
    Abstract: A non-flammable contact adhesive includes copolymer rubbers, tackifiers, stabilizer resins, and a solvent composed of a mixture of flammable and non-flammable components.
    Type: Grant
    Filed: January 8, 2019
    Date of Patent: January 5, 2021
    Assignee: WILSONART LLC
    Inventors: Daniel C. Purvis, II, David A. Altenberg, Kenneth Pechal, Eric Kendall
  • Improving the sprayability of polychloroprene contact by shearing in microfluidizer
    Patent number: 5733961
    Abstract: Polychloroprene contact adhesive is made by mixing polychloroprene, tackifier, metallic oxide, antioxidants and organic solvent. The contact adhesive is sheared for reducing its ASTM D 1084 Saybolt viscosity by 10 percent or more. Shearing improves the sprayability of the polychloroprene contact adhesive. It makes it more uniform and reduces its viscosity.
    Type: Grant
    Filed: June 17, 1996
    Date of Patent: March 31, 1998
    Assignee: Premark RWP Holdings, INC.
    Inventors: Daniel C. Purvis II, John J. Ach, John P. Jones