초록

A building panel and method of forming it are disclosed in which the panel includes inner and outer polymer facing sheets and a rigid foam core with the facing sheets joined securely to the core by glass fibers embedded in the facing sheets and projecting from them into the core.

대표청구항 ▼

A laminated panel comprising; an extruded, outer, thermoplastic, facing sheet having a fibrous material embedded in an interior face thereof with fibrous material projecting from such face, and a rigid foam layer contiguous to said interior face with said projecting fibrous material projecting into

A laminated panel comprising; an extruded, outer, thermoplastic, facing sheet having a fibrous material embedded in an interior face thereof with fibrous material projecting from such face, and a rigid foam layer contiguous to said interior face with said projecting fibrous material projecting into and entrapped in said foam layer to mechanically join said layer to said outer facing sheet. An extruded thermoplastic sheet having a fiberglass mat with fibers randomly oriented therein on at least one face thereof with fibers in said mat projecting both into said sheet and away from said sheet.