Low dusting additive for joint compound
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United States of America Patent
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Jun 25, 2019
Grant Date -
Dec 21, 2017
app pub date -
Jun 15, 2017
filing date -
Jun 15, 2016
priority date (Note) -
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Abstract
The present invention relates generally to wall repair compounds such as joint compounds, spackling compounds, and the like used to repair imperfections in walls or fill joints between adjacent wallboard panels. Particularly, the present invention relates to such a wall repair compound comprising a dust reduction additive (DRA) that reduces the quantity of airborne dust generated when the hardened compound is sanded. The dust reduction additive also imparts adhesion to the wall repair compounds to which it is added, for example to a joint compound. More specifically, this dust reduction additive is of sufficiently lighter shade to not impact the shade of the joint compound upon addition. In one embodiment, this invention relates to a non-foaming dust reduction additive that comprises paraffin and/or micro-crystalline wax-based emulsion.
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