US Patent Issued to SIKA TECHNOLOGY on June 24 for "Comb polymers as blocking additives for swelling clays" (Swiss Inventors)

ALEXANDRIA, Va., June 25 -- United States Patent no. 12,338,175, issued on June 24, was assigned to SIKA TECHNOLOGY AG (Baar, Switzerland).

"Comb polymers as blocking additives for swelling clays" was invented by Ulf Velten (Baar, Switzerland), Jurg Weidmann (Baar, Switzerland), Lukas Frunz (Baar, Switzerland) and Patrick Juilland (Baar, Switzerland).

According to the abstract* released by the U.S. Patent & Trademark Office: "A method for inerting a swellable clay and/or for reducing or inhibiting adverse effects of swellable clays on the effectiveness of dispersants in mineral binder compositions, includes adding a comb polymer to a mineral binder composition. The comb polymer includes: at least one poly(alkylene oxide) side chain-bearin...