Stock material or miscellaneous articles – Structurally defined web or sheet – Laterally noncoextensive components
Patent
1986-10-24
1988-03-08
Van Balen, William J.
Stock material or miscellaneous articles
Structurally defined web or sheet
Laterally noncoextensive components
156212, 264321, 428285, 428287, 4283099, 4283166, B32B 300, B32B 3100
Patent
active
047299177
ABSTRACT:
The specification discloses a method for thermoforming three dimensionally contoured parts from a laminate comprising a stiff thermoformable polystyrene foam core to either side of which is laminated a porous, nonextendable rigidifying material and a fabric material. The porous, nonextendable rigidifying material is arranged so as to be subjected to two dimensional contouring but so as not to extend into areas of the laminate which will be subject to severe three dimensional contouring.
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Rozek Harry J.
Symdra Andrew J.
Sackner Products Inc.
Van Balen William J.
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