Resources Contact Us Home
Process for forming a composite structure of thermoplastic polymer and sheet molding compound

Image Number 2 for United States Patent #5001000.

A process for making a rigid composite structure with a thermoplastic polymer surface by:a. thermoforming a thermoplastic polymeric sheet into a three dimensional structure; the sheet has primary glass transition temperature that is at least C. greater than the molding temperature of step c. below;b. placing the thermoformed structure and a charge of sheet molding compound (SMC) in a mold andc. heating the charge and thermoformed structure under pressure in the mold to cure the SMC and to adhere the SMC to the thermoformed structure, where the molding temperature is at least C. below the primary glass transition temperature of the thermoplastic polymeric sheet;the resulting composite structure which can be finished with a paint or a layer of clear coat and color coat also is part of the invention.

  Recently Added Patents
Luggage wheel housing with wheel
Cucumber plants with a compact growing habit
Method of forming a power supply controller and structure therefor
Rules-based approach to transferring and/or viewing medical images
Method for producing an adhesive fastening element made of plastic
Resonant oscillator with start up and shut down circuitry
Position-measuring device
  Randomly Featured Patents
Block detergent containing nitrilotriacetic acid
Rotary electric machine for a permanent magnet synchronous motor
Portable electrical distribution enclosure
Multi-account cash recycling
Jewelry display rack
Aqueous coating for vinyl chloride polymer substrate
Signal device
Positive photosensitive composition, positive photosensitive lithographic printing plate and method for its treatment
Thermal printer