Patents Assigned to Avonite, Inc.
  • Polycarbonate solid surface composition
    Patent number: 6696509
    Abstract: The present invention comprises a polycarbonate solid surface product through utilization of polycarbonate flakes. The polycarbonate flakes offer unique shapes and improved ultra-violet stability to the product. The polycarbonate flakes are also a source of consistent clear particulate and provide for increased mechanical properties in some areas over prior art 100% polyester products. Additional, fire retardant polycarbonate offers fire retardancy in a clear chip unlike opaque ATH filled polyester chips, or UV sensitive polyester that has been halogenated.
    Type: Grant
    Filed: January 23, 2001
    Date of Patent: February 24, 2004
    Assignee: Avonite, Inc.
    Inventor: Lon Risley
  • Filler and artificial stone made therewith
    Patent number: 5286290
    Abstract: Alumina trihydrate is dehydrated and rehydrated with a solution of dye, then dried to make colored alumina trihydrate which is distributed in a resin matrix to make solid decorative materials, such as artificial granite having excellent fire retardance.
    Type: Grant
    Filed: April 16, 1992
    Date of Patent: February 15, 1994
    Assignee: Avonite, Inc.
    Inventor: Lon F. Risley
  • Dry paint stripping method
    Patent number: 4947591
    Abstract: Paint is removed from surfaces by impacting it with particles of cured unsaturated polyester including about 10-20 weight weight percent methyl methacrylate, the particles having a low ratio of longest to shortest dimension and an average of at least about 40 facets.
    Type: Grant
    Filed: January 9, 1990
    Date of Patent: August 14, 1990
    Assignee: Avonite, Inc.
    Inventor: Lon F. Risley