Patents Assigned to Wolfgang Klingel
  • Process for making translucent plates with light-scattering surfaces
    Patent number: 4235658
    Abstract: An extruded, hollow profile of light-transmissive thermoplastic material, especially polyvinylchloride or a polyacrylate, is coated on at least one major side with a film of compatible, cold-hardening, light-stabilized transparent liquid resin, such as a polyester or an acrylic, whose surface is being deformed by contact with an embossed pattern carrier. The film may be stained and/or reinforced by an embedded glass-fiber insert.
    Type: Grant
    Filed: August 7, 1979
    Date of Patent: November 25, 1980
    Assignee: Wolfgang Klingel
    Inventors: Hans Klingel, Wolfgang Klingel