Stock material or miscellaneous articles – Structurally defined web or sheet – Including aperture
Patent
1979-10-10
1981-05-26
Bell, James J.
Stock material or miscellaneous articles
Structurally defined web or sheet
Including aperture
156219, 15624411, 15624412, 156324, 1563031, 156298, 428137, 428156, 428240, 428246, 428247, 428283, 428284, 428286, 428287, 428297, 428298, 428302, 428303, B32B 310
Patent
active
042698847
ABSTRACT:
Reinforced thermoplastic polymer composite sheets, formable into smooth, shaped objects in a stamping process. The composite sheet is produced by laminating together (1) a first layer of thermoplastic resin containing short nonsiliceous fibers and a mineral filler such as kaolin, (2) a backing reinforcing layer comprising a long nonsiliceous fiber mat impregnated by thermoplastic resin and (3) optionally a third layer similar to said first layer. The long fiber mat is positioned within the reinforcing layer during impregnation, whereby the mat becomes encased in a resin matrix.
REFERENCES:
patent: 4044188 (1977-08-01), Segal
patent: 4118533 (1978-10-01), Hyschen et al.
patent: 4135029 (1979-01-01), Pfiffer
patent: 4178406 (1979-12-01), Russel
Dellavecchia Michael P.
Mackey Joseph E.
Steinberg Albert H.
Allied Chemical Corporation
Bell James J.
Buff Ernest D.
Negin Richard A.
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