ALEXANDRIA, Va., Dec. 2 -- United States Patent no. 12,487,498, issued on Dec. 2, was assigned to E INK Corp. (Billerica, Mass.).
"Water-resistant sealing layer for sealing microcells of electro-optic devices" was invented by Yuriy Borisovich Matus (Pleasanton, Calif.), Chandra Bikram Kc (San Jose, Calif.), Saemi Oh Poelma (Sunnyvale, Calif.), Haiyan Gu (Fremont, Calif.), Donald A. Schultz (San Jose, Calif.) and Abraham Berhane (Tracy, Calif.).
According to the abstract* released by the U.S. Patent & Trademark Office: "The present invention is directed to a sealing layer that comprises a combination of polyurethane and poly(vinyl alcohol), the poly(vinyl alcohol) containing an acetoacetate functional group in its molecular structure. The ...