Method and laminate for thermoforming automobile headliners and like three dimensional objects
AssigneeSackner Products, Inc.
InventorsAndrew J. Symdra, Harry J. Rozek
Life of this patent
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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.
Claims58
A method for forming three dimensionally contoured parts such as automobile headliners comprising:
- thermoforming a laminate of a relatively stiff, thermoformable foam core, a porous, nonextendable material laminated thereto and a fabric laminated to and covering said porous, nonextendable layer, wherein said porous, nonextendable layer is arranged so as to be subject to two dimensional contouring in said thermoforming process, is arranged so as not to extend into areas of the laminate which will be subject to severe three dimensional contour formation, and is sufficiently porous to have better sound absorbing properties than a polymeric film material or a material such as kraft paper.
A thermoformable laminate comprising:
- a relatively stiff, thermoformable foam core, a porous, nonextendable material laminated thereto and a fabric laminated to and covering said porous, nonextendable layer, wherein said porous, nonextendable layer is arranged so as to be subject to two dimensional contouring in a thermoforming process, and is arranged so as not to extend into areas of the laminate which will be subject to severe three dimensional contour formation, and is sufficiently porous to have better sound absorbing properties than a polymeric film material or a material such as kraft paper.
Dependencies are inferred from the claim text.