Patents Assigned to E Ink Corporation & Air Products and Chemical, Inc.
  • Electro-optic display and materials for use therein
    Patent number: 7477444
    Abstract: A polyurethane is formed from an isocyanate and a polyester diol having a molecular weight less than about 2000, or a polyester diol comprising two polyester diol segments connected by a steric hindrance group, each of the polyester diol segments having a molecular weight less than about 2000. The polyurethane is useful as a binder in electro-optic displays, and in components used to form such displays.
    Type: Grant
    Filed: September 22, 2006
    Date of Patent: January 13, 2009
    Assignee: E Ink Corporation & Air Products and Chemical, Inc.
    Inventors: Lan Cao, David Miller, Eric H. Klingenberg, Shafiq N. Fazel, Jared Bender