US Patent Issued to MACROCEMENT INDUSTRIES on March 25 for "Cement and process for producing self-protecting cement" (Canadian Inventors)

ALEXANDRIA, Va., March 26 -- United States Patent no. 12,258,294, issued on March 25, was assigned to MACROCEMENT INDUSTRIES LTD. (Toronto).

"Cement and process for producing self-protecting cement" was invented by Alexander Ozersky (Richmond Hill, Canada) and Alexander Khomyakov (Vaughan, Canada).

According to the abstract* released by the U.S. Patent & Trademark Office: "A process for producing cement includes combining a cement precursor and a wax, wherein the wax includes alkyl ketene dimer wax and/or alkenyl ketene dimer wax, grinding the cement precursor and the wax to yield cement grains coated with the wax. A cement includes cement powder grains and a coating of wax on the Portland cement powder grains, wherein the wax includes al...