US Patent Issued to W.R. Grace & Co.-Conn. on Sept. 30 for "Defoamer active, manufacturing thereof, and deforming formulation" (Maryland Inventor)

ALEXANDRIA, Va., Sept. 30 -- United States Patent no. 12,427,444, issued on Sept. 30, was assigned to W.R. Grace & Co.-Conn. (Columbia, Md.).

"Defoamer active, manufacturing thereof, and deforming formulation" was invented by Feng Gu (Columbia, Md.).

According to the abstract* released by the U.S. Patent & Trademark Office: "This invention relates to a defoamer active. The defoamer active may include hydrophobized silica particles obtained by treating silica particles with a hydrophobilizing agent. The silica particles may have a BET surface of less than about 150 m2/g, a surface pH of at least about 10, and a median particle size ranging from about 2 micro metre to about 50 micro metre. The carbon content of the hydrophobized silica part...