Molding material consisting of resin coated reinforcing fibers in a molten mass of resin and fibers is prepared at a molding site for controlled supply to a molding machine. A conveying device, such as a pair of pinch rollers, serves to pull fibers from supply spools through guide orifices of a coating...http://www.google.com/patents/US6676864?utm_source=gb-gplus-sharePatent US6676864 - Resin and fiber compounding process for molding operations
