Patent 8193262 was granted and assigned to Lafarge on June, 2012 by the United States Patent and Trademark Office.
A finishing compound having acoustic properties and including in percentage by weight relative to the total weight of the product, at least 10 to 70% of water; 0.1 to 5% of a foaming agent; 0.1 to 5% of a thickening agent; 35 to 70% of a monogranular filler having a size greater than or equal to 100 μm and excluding fine fillers; 0.1 to 8% of synthetic or animal fibers; 0.5 to 35% of binder.