Koppers Holdings, headquartered in Pittsburgh, employs 2,108 staff and operates in treated wood products, wood treatment chemicals, and carbon compounds across three segments. It serves markets in North America, South America, Australasia, and Europe.
KOP filed a patent for "method for manufacturing an aqueous fire retardant composition, an aqueous fire retardant composition, a method for treating a wood substrate therewith, and a wood product produced therefrom" on Thu, April 25, 2024. The patent was officially published on Thu, October 31, 2024.
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