Manufacture of man-made vitreous fiber products
AssigneeRockwool International A/S
InventorsFlemming Weiss Tonder, Anders Ulf Clausen
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Abstract
A process is provided for making filled mineral fiber products which comprises applying mineral melt to a rotating fiberizing rotor and thereby throwing from the rotor as fibers and forming a substantially annular cloud of fibers, spraying binder into the annular cloud of fibers, carrying the fibers axially from the rotor towards a collector surface and collecting the fibers on the collector surface as a web. The process includes spraying into the substantially annular cloud a slurry which has specific gravity of at least 1.1, preferably at least 1.2, and which comprises a substantially stable liquid dispersion of particulate material in an aqueous binder.
Claims14
A process for making filled MMVF product comprising applying mineral melt to a rotating fiberising rotor (1) and thereby throwing the melt from the rotor (1) as fibres and forming a substantially annular cloud of the fibres, spraying binder into the annular cloud of fibres, carrying the fibres axially from the rotor (1) towards a collector surface and collecting the fibres on the collector surface as a web, characterised in that the process includes spraying into the substantially annular cloud a slurry which has specific gravity at least 1.1 and which comprises a substantially stable liquid dispersion of a particulate material in an aqueous binder.
Dependencies are inferred from the claim text.