B - Operations – Transporting – 28 – B
Patent
B - Operations, Transporting
28
B
B28B 1/52 (2006.01) B28B 5/02 (2006.01) B28B 17/02 (2006.01) B28B 19/00 (2006.01) B32B 13/02 (2006.01) C04B 28/14 (2006.01) C04B 40/00 (2006.01) C04B 41/50 (2006.01)
Patent
CA 2049693
A method and apparatus for producing gypsum board. The method includes the steps of mixing a predetermined amount of fibers, absorbent, and water to form a mixture of wetted, loose fibers, mixing the wetted fibers with predetermined amount of dry calcined gypsum, forming the mixture into a matt having a substantially uniform consistency and compressing the matt to form a board composed of bonded fibers and gypsum. The resulting board has a smooth exterior and can be a homogeneous or a multilayer board.
Bhagwat Suda G.
Eisses James
Melzer Gerhard M.
Schafer Karl K.
Scriba Jorg
Carl Schenck Ag
Louisiana-Pacific Corporation
Ogilvy Renault Llp/s.e.n.c.r.l.,s.r.l.
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