US Patent Issued to Alcon on May 13 for "Polysiloxane vinylic crosslinkers with high refractive index" (Georgia Inventors)

ALEXANDRIA, Va., June 12 -- United States Patent no. 12,297,323, issued on May 13, was assigned to Alcon Inc. (Fribourg, Switzerland).

"Polysiloxane vinylic crosslinkers with high refractive index" was invented by Frank Chang (Cumming, Ga.), Thomas M. Moy (Cumming, Ga.) and Adam K. Sniady (Lilburn, Ga.).

According to the abstract* released by the U.S. Patent & Trademark Office: "The invention provides a class of high RI polysiloxane vinylic crosslinkers. Each of the polysiloxane vinylic crosslinkers of the invention comprise (1) a polysiloxane segment comprising dimethylsiloxane units and aryl-containing siloxane units each having one methyl substituent and one organic substituent having up to 45 carbon atoms and at least one aryl moiety ...