US Patent Issued to SEKISUI SPECIALTY CHEMICALS AMERICA on June 10 for "Mold release for engineered stone and other mold release applications" (Texas Inventors)

ALEXANDRIA, Va., June 18 -- United States Patent no. 12,325,157, issued on June 10, was assigned to SEKISUI SPECIALTY CHEMICALS AMERICA LLC (Pasadena, Texas).

"Mold release for engineered stone and other mold release applications" was invented by David B. Wurm (Pasadena, Texas), George Shitera (Pasadena, Texas) and Vinh Nguyen (Pasadena, Texas).

According to the abstract* released by the U.S. Patent & Trademark Office: "A homogeneous, aqueous mold release solution including: 5 to 90 wt % water; 3 to 40 wt % polyvinyl alcohol; 0.01 to 3.2 wt % surfactant; 1 to 20 wt % sugar alcohol; 0.005 to 1.05 wt % defoamer; and up to 50 ppm biocide, where a total of all components adds to 100 wt %. The mold release solutions have a viscosity in a range...