초록 ▼

A thermoformable laminate including a rigid thermoplastic foam sheet and a fiber reinforcing layer adhered to each of two opposite faces of the rigid thermoplastic foam sheet is heated to the thermoforming softening temperature of the rigid thermoplastic foam sheet, and shaped and compressed to form

A thermoformable laminate including a rigid thermoplastic foam sheet and a fiber reinforcing layer adhered to each of two opposite faces of the rigid thermoplastic foam sheet is heated to the thermoforming softening temperature of the rigid thermoplastic foam sheet, and shaped and compressed to form a headliner having varying thicknesses, including a major portion of the headliner which is relatively thin and highly compressed, and at least one relatively thick, lightly compressed or non-compressed impact absorption area. The thermoformable laminate and method make it possible to form a headliner with integral impact absorption areas from a laminate of uniform thickness and density, using a single thermoforming operation.

대표청구항 ▼

1. A thermoformable laminate comprising:a rigid thermoplastic foam sheet, and a fiber reinforcing layer adhered to each of two opposite faces of the rigid thermoplastic foam sheet, wherein the rigid thermoplastic foam sheet is doped with carbon black at a concentration of from about 0.0000081 to abo

1. A thermoformable laminate comprising:a rigid thermoplastic foam sheet, and a fiber reinforcing layer adhered to each of two opposite faces of the rigid thermoplastic foam sheet, wherein the rigid thermoplastic foam sheet is doped with carbon black at a concentration of from about 0.0000081 to about 0.0081% by weight.