Patents by Inventor Karen K. Webb

Karen K. Webb 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).

  • Process for restoring discharded silicone-polycarbonate parts
    Patent number: 5384159
    Abstract: A process is provided for reclaiming rejected polycarbonate articles, such as an automotive headlamp-lens having a thermoplastic acrylic primer and a defective silicone hardcoat. The silicone hardcoat can be selectively removed with an aqueous alkaline bath treatment. The treated polycarbonate article can be recovered with the thermoplastic acrylic primer remaining substantially intact; the article can be restored by treatment with a silicone hardcoat.
    Type: Grant
    Filed: September 22, 1993
    Date of Patent: January 24, 1995
    Assignee: General Electric Company
    Inventors: Gregory R. Gillette, Karen K. Webb
  • Method of preparing curable coating composition from alcohol, colloidal silica, silylacrylate and multiacrylate monomer
    Patent number: 4491508
    Abstract: UV curable coating compositions are provided based on the use of photoinitiator with the hydrolysis product of silylacrylate and aqueous colloidal silica. The UV curable silicone coating compositions also can contain polyfunctional acrylate. The UV curable hardcoat composition can be applied onto various substrates, for example, a polycarbonate substrate, and thereafter cured under UV radiation to produce adherent and abrasion resistant coated articles.
    Type: Grant
    Filed: January 21, 1983
    Date of Patent: January 1, 1985
    Assignee: General Electric Company
    Inventors: Daniel R. Olson, Karen K. Webb
  • UV Curable polysiloxane from colloidal silica, methacryloyl silane, diacrylate, resorcinol monobenzoate and photoinitiator
    Patent number: 4455205
    Abstract: UV curable coating compositions are provided based on the use of photoinitiator with the hydrolysis product of silylacrylate and aqueous colloidal silica. The UV curable silicone coating compositions also can contain polyfunctional acrylate. The UV curable hardcoat composition can be applied onto various substrates, for example, a polycarbonate substrate, and thereafter cured under UV radiation to produce adherent and abrasion resistant coated articles.
    Type: Grant
    Filed: June 1, 1981
    Date of Patent: June 19, 1984
    Assignee: General Electric Company
    Inventors: Daniel R. Olson, Karen K. Webb
  • Abrasion resistant silicone coated polycarbonate article
    Patent number: 4308317
    Abstract: A shaped, non-opaque coated polycarbonate article having improved abrasion and chemical solvent resistance comprising a polycarbonate substrate having disposed on the surface thereof a non-opaque primer layer of controlled thickness comprised of a thermoset acrylic polymer and disposed on said primer layer a non-opaque top coat comprised of a thermoset organopolysiloxane.
    Type: Grant
    Filed: January 10, 1980
    Date of Patent: December 29, 1981
    Assignee: General Electric Company
    Inventors: Daniel R. Olson, Ona V. Orkin, Karen K. Webb
  • Abrasion resistant silicone coated polycarbonate article
    Patent number: 4284685
    Abstract: A shaped, non-opaque coated polycarbonate article having improved abrasion and chemical solvent resistance comprising a polycarbonate substrate having disposed on the surface thereof a non-opaque primer layer of controlled thickness comprised of a thermoset acrylic polymer and disposed on said primer layer a non-opaque top coat comprised of a colloidal silica filled thermoset organopolysiloxane.
    Type: Grant
    Filed: January 10, 1980
    Date of Patent: August 18, 1981
    Assignee: General Electric Company
    Inventors: Daniel R. Olson, Ona V. Orkin, Karen K. Webb