US Patent Issued to E Ink on Dec. 16 for "Sealing film compositions for sealing microcells of electro-optic devices" (California, Massachusetts Inventors)

ALEXANDRIA, Va., Dec. 16 -- United States Patent no. 12,497,534, issued on Dec. 16, was assigned to E Ink Corp. (Billerica, Mass.).

"Sealing film compositions for sealing microcells of electro-optic devices" was invented by Ali Sarvi (San Jose, Calif.), Abraham Berhane (Tracy, Calif.), Mary E. Parent (Mountain View, Calif.) and Stephen J. Telfer (Arlington, Mass.).

According to the abstract* released by the U.S. Patent & Trademark Office: "The present invention is directed to an aqueous sealing composition that comprises a combination of polymers, a poly(vinyl alcohol) homopolymer or poly(vinyl alcohol-co-ethylene) copolymer and a polyurethane, a conductive filler, and a water-soluble ether in an aqueous carrier. The aqueous sealing compo...