US Patent Issued to Koppers Performance Chemicals on April 22 for "Wood preservative and method for producing same" (Georgia Inventors)

ALEXANDRIA, Va., June 6 -- United States Patent no. 12,279,615, issued on April 22, was assigned to Koppers Performance Chemicals Inc. (Pittsburgh).

"Wood preservative and method for producing same" was invented by Jun Zhang (Peachtree City, Ga.), Peter Tham (Morrow, Ga.) and John Horton (Peachtree City, Ga.).

According to the abstract* released by the U.S. Patent & Trademark Office: "A synergistic aqueous wood preservative composition comprising a copper compound and penflufen. The copper compounds of the compositions of the invention may be soluble, partially solubilized or micronized particles. The penflufen of the compositions of the invention may be solubilized, emulsified or particulate. The wood preservative compositions of the pre...