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
Semiconductor device
Simplified algorithm for abnormal situation prevention in load following applications including plugged line diagnostics in a dynamic process
Blow moulding machine with compressed air recycling
Hybrid interconnect scheme including aluminum metal line in low-k dielectric
Image sensor with improved color crosstalk
Methods of making a diagnostic device by interweaving hydrophobic and hydrophilic fibers, and diagnostic device therefrom
Shoe bag
  Randomly Featured Patents
Method of implementing polishing uniformity and modifying layout data
Magnetized ear piece
Methods and apparatus for canceling co-channel interference in a receiving system using spatio-temporal whitening
Low fat spread
Ornamental element mounting means
Fake fishing bait device, and methods of constructing and utilizing same
Data plotter
Wall structure
Tubular high strength low alloy steel for oil and gas wells
Switch for bus optimization