The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jul. 07, 2026
Filed:
Dec. 20, 2024
Applicant:
E Ink Corporation, Billerica, MA (US);
Inventors:
Ali Sarvi, San Jose, CA (US);
Abraham Berhane, Tracy, CA (US);
Mary E. Parent, Mountain View, CA (US);
Kenneth R. Crounse, Somerville, MA (US);
Stephen J. Telfer, Arlington, MA (US);
Assignee:
E Ink Corporation, Billerica, MA (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G02F 1/1679 (2019.01); C08K 3/04 (2006.01); C08L 29/04 (2006.01); C09D 129/04 (2006.01); G02F 1/167 (2019.01);
U.S. Cl.
CPC ...
G02F 1/1679 (2019.01); C08K 3/04 (2013.01); C08L 29/04 (2013.01); C09D 129/04 (2013.01); G02F 1/167 (2013.01); C08K 2201/001 (2013.01); C08K 2201/005 (2013.01); C08K 2201/006 (2013.01); C08L 2203/16 (2013.01);
Abstract
The present invention is directed to a sealing layer that comprises a poly(vinyl alcohol) homopolymer or a poly(vinyl alcohol-co-ethylene) copolymer, a polyurethane, and a conductive filler. The sealing layer shows good barrier properties to a non-polar fluid. The sealing layer can be used to seal microcells of electro-optic devices, contributing to improved good electro-optic performance of the device, especially at low temperatures.