US Patent Issued to BASF on July 22 for "Method for producing an aqueous polymer dispersion from a vinyl aromatic compound and a conjugated aliphatic diene" (German Inventors)

ALEXANDRIA, Va., July 23 -- United States Patent no. 12,365,745, issued on July 22, was assigned to BASF SE (Ludwigshafen am Rhein, Germany).

"Method for producing an aqueous polymer dispersion from a vinyl aromatic compound and a conjugated aliphatic diene" was invented by Carmen-Elena Cimpeanu (Ludwigshafen am Rhein, Germany) and Dirk Lawrenz (Ludwigshafen am Rhein, Germany).

According to the abstract* released by the U.S. Patent & Trademark Office: "A process for preparing an aqueous polymer dispersion by radically initiated aqueous emulsion polymerization of (a) 40 to 75 parts by weight of at least one vinylaromatic compound, (b) 24.9 to 59.9 parts by weight of at least one conjugated aliphatic diene, (c) 0.1 to 10 parts by weight of ...