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From: US Fed News Service, Including US State News
Date: 20060916
Author:
ALEXANDRIA, Va., Sept. 16 -- Stephen Crane of Stanwood, Wash., has developed a method for forming a multi-layer composite structure. According to the U.S. Patent & Trademark Office: "A thermoplastic multi-layer composite structure is disclosed and consist in a first embodiment of a co-extruded acrylic polypropylene outer skin and high melt strength polypropylene substrate which is attached to a first surface of a polypropylene foam core. An inner polypropylene skin can be provided and is attached to a second surface of the foam core. The foam core can either be constructed from an ...
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