Method for manufacturing a mineral wool panel

Details Method for manufacturing a mineral wool panel Method for manufacturing a mineral wool panel

D - Textiles, Paper

21

H

18/1016, 92/11,

D21H 13/40 (2006.01) C04B 24/38 (2006.01) C04B 26/04 (2006.01) D21H 17/20 (2006.01) D21H 17/28 (2006.01) D21H 23/04 (2006.01) D21J 1/06 (2006.01) D21J 1/20 (2006.01)

Patent

CA 2013566

The manufacture of sag-resistant, lightweight structural mineral panels on a foraminous support wire is accomplished by forming a dilute aqueous dispersion of mineral fiber and/or aggregate and an anionically stabilized latex binder, coupling the binder solids onto the mineral fiber materials by adding a small amount of a flocculant such as a cationic polyacrylamide, and passing the slurry onto a first flooded section of the support wire to form an open, entangled, structural mass having water in interstitial spaces of the entangled mass. Water is stripped from the mass and the mass dried without collapse of the open structure by passing heated dry air through the open entangled structure.

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