Plural extruder method for making a composite building panel

Details Plural extruder method for making a composite building panel Plural extruder method for making a composite building panel

1995-05-15

1996-10-15

Stemmer, Daniel

Adhesive bonding and miscellaneous chemical manufacture

Methods

Surface bonding and/or assembly therefor

15624412, 15624427, 156324, 264257, B29C 4706

Patent

active

055650562

ABSTRACT:
A glass fiber reinforced building panel is made by extruding molten first and second webs of polymer compounds through spaced die openings, positioned a glass fiber mat between the first and second webs, pressing the webs and mat together, and cooling to form a building panel. The building panel of the invention has improved fire retardance and better field cutting and sawing performance compared with conventional, unreinforced building panels.

REFERENCES:
patent: 3765998 (1973-10-01), Oswald
patent: 4302269 (1981-11-01), Steinberg
patent: 4304622 (1981-12-01), Krumm
patent: 4308702 (1982-01-01), Rajewski
patent: 4448739 (1984-05-01), Baus
patent: 4652326 (1987-03-01), Spielau
patent: 4788088 (1988-11-01), Kohl
patent: 5024714 (1991-06-01), Lemelson
patent: 5030676 (1991-07-01), Wallen

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