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National Gypsum Properties Llc patents


Recent patent applications related to National Gypsum Properties Llc. National Gypsum Properties Llc is listed as an Agent/Assignee. Note: National Gypsum Properties Llc may have other listings under different names/spellings. We're not affiliated with National Gypsum Properties Llc, we're just tracking patents.

ARCHIVE: New 2018 2017 2016 2015 2014 2013 2012 2011 2010 2009 | Company Directory "N" | National Gypsum Properties Llc-related inventors


Sound damping wallboard and method of forming a sound damping wallboard

A sound damping wallboard and methods of forming a sound damping wallboard are disclosed. The sound damping wallboard includes a gypsum layer having a first side with a first gypsum surface, a first encasing layer at least partially covering the first gypsum surface to form a first encasing layer portion, and a sound damping layer on the first side covering at least part of the first encasing layer portion.. ... National Gypsum Properties Llc

Liquid gypsum set accelerator

A liquid accelerator composition for accelerating the setting reaction of calcium sulfate hemihydrate and water and methods of forming a liquid gypsum accelerator are provided. The liquid accelerator composition includes a liquid media in which calcium sulfate dihydrate is less than fully soluble and a ground product of a mill grinding of a mixture comprising calcium sulfate dihydrate.. ... National Gypsum Properties Llc

System for making gypsum board using a liquid gypsum set accelerator

Systems and methods for making gypsum board using a liquid gypsum set accelerator. Stucco and water are mixed to form a gypsum slurry, such as in a pin mixer. ... National Gypsum Properties Llc

Sound damping wallboard and method of forming a sound damping wallboard

A sound damping wallboard and methods of forming a sound damping wallboard are disclosed. The sound damping wallboard includes a gypsum layer having a first side with a first gypsum surface, a first encasing layer at least partially covering the first gypsum surface to form a first encasing layer portion, and a sound damping layer on the first side covering at least part of the first encasing layer portion.. ... National Gypsum Properties Llc








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