US Patent Issued to BYK-Chemie on Nov. 25 for "Comb polymer having salt groups" (Japanese, German Inventors)

ALEXANDRIA, Va., Nov. 25 -- United States Patent no. 12,479,961, issued on Nov. 25, was assigned to BYK-Chemie GmbH (Wesel, Germany).

"Comb polymer having salt groups" was invented by Hiroshi Yonehara (Hyogo, Japan), Andreas Okkel (Wesel, Germany), Benjamin Lindner (Rudenhausen, Germany), Shinji Hino (Osaka, Japan), Sabine Stelz (Oberhausen, Germany) and Ryo Takabayashi (Hyogo, Japan).

According to the abstract* released by the U.S. Patent & Trademark Office: "The invention relates to a comb polymer having a polymer backbone and lateral side chains linked to the polymer backbone, wherein the lateral side chains comprise a) alkyl ether terminated polyalkylene oxide side chains, and b) tertiary amine-functional side chains, wherein the tert...