US Patent Issued to SIKA TECHNOLOGY on March 17 for "Use of polyol for reducing shrinkage of construction chemical compositions" (German Inventors)

ALEXANDRIA, Va., March 17 -- United States Patent no. 12,577,158, issued on March 17, was assigned to SIKA TECHNOLOGY AG (Baar, Switzerland).

"Use of polyol for reducing shrinkage of construction chemical compositions" was invented by Markus Knoebel (Coesfeld, Germany) and Nick Schneider (Billerbeck, Germany).

According to the abstract* released by the U.S. Patent & Trademark Office: "The use of polyol having a functionality of 4 or less and an OH group density of at least 0.033 mol OH per g polyol as a composition for reducing shrinking of construction chemicals on the basis of a hydraulic binder comprising a) alumina cement and/or calcium sulfoaluminate cement, b) calcium sulfate, and c) optionally Portland cement."

The patent was file...