Method for manufacturing a mineral wool panel

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

1990-10-29

1993-10-05

Chin, Peter

Paper making and fiber liberation

Processes and products

Mineral fiber

1621683, 162169, 162175, 162178, 1621811, 1621813, 1621816, 1621818, 162183, 162208, 162212, 162217, D21H 1338

Patent

active

052501531

ABSTRACT:
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.

REFERENCES:
patent: 4587278 (1986-05-01), Dotzauer et al.

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