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US 2019/0055162 A1Published application
Method for production of acoustical panels
AssigneeUSG Interiors, Inc.
InventorsThomas M. Mayers, Wei Xu, Martin W. Brown
Life of this patent
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Abstract
The disclosure provides a method of decreasing the water load needed to form a fibrous panel. The process includes admixing a mineral wool, a cellulose, and a binder to provide a pre-mixed slurry, admixing a mineral filler with water to provide a mineral filler slurry, admixing the pre-mixed slurry and the mineral filler slurry to form a dispersion, flowing the dispersion onto a foraminous support wire to provide a green board, dewatering the green board to form a dewatered green board and drying the dewatered green board to provide a fibrous panel.
Claims20
A method of preparing a fibrous panel, comprising:
- admixing a mineral wool, a cellulose, and a binder with water to provide a pre-mixed slurry;
- admixing a mineral filler with water to provide a mineral filler slurry;
- introducing the pre-mixed slurry to a headbox of a forming machine;
- injecting the mineral filler slurry into the headbox and mixing with the pre-mixed slurry to form a dispersion;
- flowing the dispersion onto a moving foraminous support wire to provide a green board;
- dewatering the green board to form a dewatered green board and;
- drying the dewatered green board to provide a fibrous panel.
4 more elements
Dependencies are inferred from the claim text.