Allied Chemical Corporation

Allied Corporation

Michael P Dellavecchia

Albert H Steinberg

Joseph E Mackey

Edward R Degginger

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 glass fibers and a mineral filler such as kaolin, (2) a backing reinforcing layer comprising a long glass mat impregnated by thermoplastic resin and (3) optionally a third layer similar to said first layer. The long glass mat is positioned within the reinforcing layer during impregnation, whereby the mat becomes encased in a resin matrix.

Fiber reinforced multi-ply stampable thermoplastic sheet

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.

A thermoplastic sheet material useful in forming multilayer composites, said sheet material being formed of at least one layer comprising polyepsiloncaprolactam and about 0.05 to 1 percent by weight, based upon the weight of the polyepsiloncaprolactam, of a dibasic carboxylic acid or anhydride or esters thereof and at least one reinforcing mat of long glass fibers encased within said layer.

Process for making composite laminated polyamide sheet material

Reinforced thermoplastic polymer composite sheets, formable into smooth, shaped objects in a stamping process. The characterizing constitutents of the composite sheet are: (1) a first layer of thermoplastic resin containing short glass fibers and a mineral filler such as kaolin, (2) a backing reinforcing layer comprising a long glass mat encased in a resin matrix and (3) optionally a third layer similar to said first layer.

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Sparta, NJ, United States of America

Michael P Dellavecchia