Thermoplastic polyolefin composite structure

A three dimensional thermoplastic polyolefin composite useful as an exterior auto or truck body part consisting essentially of the following components:

• 1. a multilayer coating consisting essentially of
• a. a 10-125 micron thick layer of a glossy clear thermoplastic finish formed from a clear coating composition bonded firmly to
• b. a 5-75 micron thick layer of a thermoplastic pigment containing paint firmly bonded to
• c. a 1-25 micron thick size layer of a thermoplastic chlorinated polyolefin containing 15-50% by weight chlorine;
• said multilayer coating formed by applying a layer of a clear coating composition to a polymeric film, applying a paint layer to the layer of clear coating composition and then applying a layer of the thermoplastic chlorinated polyolefin to the paint layer and curing the multilayer coating;
• said multilayer being firmly bonded by lamination to
• 2. a 250-1250 micron thick layer of a flexible extruded sheet of a thermoplastic polyolefin having a flexural modulus of about 175-2100 MPa and a melt flow rate of about 0.5-2.0 g/10 min.;
• wherein the chlorinated polyolefin layer of the multilayer coating is in contact with the sheet of thermoplastic polyolefin and the polymeric sheet is removed after lamination to leave a smooth glossy surface on the clear layer and the resulting flexible sheet having the multilayer coating is thermoformed into a three dimensional structure that is bonded to
• 3. a 500-25,000 micron thick rigid layer of a thermoplastic polyolefin resin having a modulus of about 175-2100 MPa and a melt flow rate of about 4.0-8.0 g/10 min. formed by injection molding said resin to the flexible sheet having a three dimensional structure;
• wherein layers a. and b. of the multilayer form the exterior surface of the composite and have a gloss of at least 60 measured at 20.degree. and a distinctness of image of at least 60.