Composite sheets with layers possessing different properties are provided which can be compression molded to produce molded panels with smooth glossy surfaces. A fiber free outer layer is laminated to a bulk layer comprising fiber mat compounded with thermoplastic resin filled with chopped fibers. The...http://www.google.es/patents/US4716072?utm_source=gb-gplus-sharePatente US4716072 - Multilayer composite structure for smooth surfaces
Multilayer composite structure for smooth surfaces
