Patent Number: 7,785,510

Title: Process of and apparatus for making a shingle, and shingle made thereby

Abstract: A process and apparatus for making a shingle, together with the shingle made thereby, is provided, in which one or more thermoplastic materials are extruded or co-extruded to form an extrudate, with the extrudate being cut into a preliminary shingle shape, which is allowed to dissipate heat, and then is delivered to a compression mold, wherein the preliminary shingle shape is compression molded to substantially its final dimensions and is then discharged from the mold and allowed to cool.

Inventors: MacKinnon; Thomas Kevin (Ann Arbor, MI), Dodd; Robert E. (Parma, MI), Kim; Joong Youn (Newtown Square, PA), Wylie; Douglas H. (Richmond Hill, CA)

Assignee: CertainTeed Corporation

International Classification: B29C 47/00 (20060101); B29C 47/06 (20060101); D01D 5/12 (20060101); B29C 45/73 (20060101)

Expiration Date: 8/31/12018