Patent ID: 7018579
Filing Date: 2006-03-28
Classification: B29C

Abstract:
1. A method of manufacturing a plastic product having plural layers mounted to a lower extruded layer, said method utilizing the following steps, providing a rotary mold element, said rotary mold element having plural elongated cavities formed therein and including internal cooling means for application to the product being manufactured, said rotary element including internal vacuum means for application to the product being manufactured, said manufacturing method including providing heating means for application to the product being manufactured, said heating means being located externally of said rotary mold, providing extrusion means for supplying a first layer of plastic material, providing roll means for supplying a layer of long fiber strengthening material, providing second extrusion means for supplying a second layer of plastic material, said manufacturing method including providing a second rotary element having plural male protrusions formed thereon, said male protrusions mating with said elongated female cavities of said rotary mold element, and further including a catalytic bath means for treating said layer of long fiber strengthening material, said catalytic bath means being heated by heating elements, wherein said rotary mold element is provided with internal cooling means and internal vacuum means and whereby said cooling means is supplied at a first end of said rotary mold element by means of a coolant sequential valve and whereby said vacuum means is supplied at a second end of said rotary mold element by means of a vacuum sequential valve, wherein said rotary mold element includes plural cooling channels around the entire outer parts thereof and plural vacuum passages around the entire outer parts thereof and wherein said plural channels and passages are activated by means of the respective sequential valves.