US 12,031,065 B2
Adhesive composition comprising a polyurethane and a cationic dopant
Lynne A. McCullough, Brooklyn, NY (US); and Michael Thomas Regan, Troutman, NC (US)
Assigned to E Ink Corporation, Billerica, MA (US)
Filed by E INK CORPORATION, Billerica, MA (US)
Filed on Nov. 29, 2022, as Appl. No. 18/070,843.
Application 18/070,843 is a division of application No. 17/003,169, filed on Aug. 26, 2020.
Claims priority of provisional application 62/911,742, filed on Oct. 7, 2019.
Prior Publication US 2023/0102482 A1, Mar. 30, 2023
Int. Cl. C09J 175/00 (2006.01); C08G 18/08 (2006.01); C08G 71/04 (2006.01); C08G 77/458 (2006.01); C09J 175/04 (2006.01); C09J 175/06 (2006.01); G02F 1/167 (2019.01); G02F 1/1676 (2019.01); H10K 59/00 (2023.01); H10K 59/131 (2023.01); H10K 59/88 (2023.01); C08K 5/19 (2006.01)
CPC C09J 175/04 (2013.01) [C08G 18/0804 (2013.01); C08G 18/0809 (2013.01); C08G 18/0833 (2013.01); C08G 71/04 (2013.01); C08G 77/458 (2013.01); C09J 175/00 (2013.01); C09J 175/06 (2013.01); G02F 1/167 (2013.01); G02F 1/1676 (2019.01); H10K 59/00 (2023.02); H10K 59/131 (2023.02); H10K 59/88 (2023.02); C08K 5/19 (2013.01); G02F 2202/28 (2013.01)] 10 Claims
OG exemplary drawing
 
1. An electro-optic assembly comprising, in order, an electrically-conductive light-transmissive layer, an electro-optic material layer in electrical contact with the electrically-conductive light-transmissive layer. an adhesive laver, and a backplane substrate, the electro-optic material layer comprising an electrophoretic medium including a plurality of charged particles in a fluid, the adhesive layer comprising a polyurethane and a homopolymer, the homopolymer being formed during a curing process via polymerization of a polymerizable cationic dopant, the polymerizable cationic dopant being represented by Formula II,

OG Complex Work Unit Chemistry
wherein
R9 is hydrogen or a methyl group;
R10 is an alkyl group having from 1 to 10 carbon atoms;
q is from 1 to 5; and
Yn− is a counter ion, the counterion being selected from the group consisting of 1,1,2,2-tetrafluoroethane sulfonic acid, hexafluorosilicic acid, tris(perfluoroalkyl)trifluorophosphate, 2,2,2-trifluoromethylsulfonyl-N-cyanoamide, heptadecafluorooctanesulfonic acid, 1,1,1-trifluoro-N-((trifluoromethyl)sulfonyl)methanesulfonamide, bis(perfluoroethylsulfonyl)amide, bis[(trifluoromethyl)sulfonyl]imide, bis(fluorosulfonyl)imide, fluorotrifluoromethylsulfonyl imide, (fluorosulfonyl)(pentafluoroethanesulfonyl)imide, (trifluoromethylsulfonyl)(pentafluoroethanesulfonyl)imide.