Structural laminates made with novel facing sheets

Stock material or miscellaneous articles – Structurally defined web or sheet – Discontinuous or differential coating – impregnation or bond

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428285, 4283044, 4283191, 428323, 428324, 428326, 428328, B32B 326

Patent

active

050010050

ABSTRACT:
A structural laminate comprises at least one planar facing sheet comprised largely of glass fibers but not having micro-glass as a filler. The facing sheet is self adhered to a rigid thermosetting plastic foam core. The non-glass filler material is chosen from a group consisting of clay, mica, talc, limestone (calcium carbonate), gypsum (calcium sulfate), aluminum trihydrate (ATH), antimony oxide, cellulose fibers, and plastic polymer fibers. The non-glass filler material improves containment of liquid plastic thermosetting polymer, and offers economic and safety advantages.

REFERENCES:
patent: 3671355 (1972-06-01), Paymal
patent: 4049852 (1977-09-01), Smith, Jr.
patent: 4082885 (1978-04-01), Rashid et al.
patent: 4459334 (1984-07-01), Blanpied et al.
patent: 4600634 (1986-07-01), Langer

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