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Koppers Performance Chemicals Inc patents


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

ARCHIVE: New 2018 2017 2016 2015 2014 2013 2012 2011 2010 2009 | Company Directory "K" | Koppers Performance Chemicals Inc-related inventors


Micronized wood preservative formulations

The present invention provides wood preservative compositions comprising micronized particles. In one embodiment, the composition comprises dispersions of micronized metal or metal compounds. In another embodiment, the wood preservative composition comprises an inorganic component comprising a metal or metal compound and organic biocide. When the composition comprises an inorganic component... Koppers Performance Chemicals Inc

Methods for improved copper penetration in wood

The present invention is directed to amine soluble, or solid copper triazole based wood preservative formulations containing certain types of quaternary ammonium compounds, or nonionic sufactants, and the use of these quaternary ammonium compound-, or nonionic surfactant-containing formulations to pressure treat and preserve wood. The addition of the quaternary ammonium... Koppers Performance Chemicals Inc

Wood treatment for dimensional stabilization

A process is provided for treating wood products including lumber, plywood and other engineered wood products comprising the steps of contacting a composition comprising a polypropylene glycol, a high molecular weight polyethylene glycol, a polyether polyol having low solubility in water, or a polytetrahydrofuran, or hydrophobic polyether polyol, with the... Koppers Performance Chemicals Inc

Methods of conferring fire retardancy to wood and fire-retardant wood products

A process is provided for treating wood products including lumber, plywood and other engineered wood products comprising the steps of applying an aqueous fire-retardant impregnate and applying a coating to the surface of the wood product. In one embodiment, said process confers fire-retardant properties to the wood products sufficient to... Koppers Performance Chemicals Inc








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