Plastic and nonmetallic article shaping or treating: processes – With printing or coating of workpiece – Coating or impregnating workpiece before molding or shaping...
Patent
1990-10-09
1992-03-17
Tentoni, Leo B.
Plastic and nonmetallic article shaping or treating: processes
With printing or coating of workpiece
Coating or impregnating workpiece before molding or shaping...
65 343, 156161, 15624412, 15624419, 156269, 264149, 264174, 26421112, 264229, 264231, 427175, 4273855, 4273897, 4274071, 4274072, 4274346, B29C 3502, B29C 4702, B29C 4728, B29C 6700
Patent
active
050966456
ABSTRACT:
Extruded thermoplastic members, particularly structural members, are reinforced by longitudinally extending pre-stressed elements, such as filaments or matting. The elements, while under tension, are drawn into an extrusion crosshead die forming the thermoplasatic member. The elements are fully imbedded within the thermoplastic material while under tension and curing of the thermoplastic material, and final curing of the tensioned reinforcing elements, if a thermosetting resin impregnated element is used, occurs while the elements are under tension, the material of the member and the elements intimately bond and the tension forces within the elements reinforce the member at the desired locations. The forming of the reinforced member is a continuous operation.
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Plastigage Corporation
Tentoni Leo B.
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