Electro-optic display and materials for use therein
AssigneesE Ink Corporation, Air Products and Chemicals, Inc.
InventorsLan Cao, David D. Miller, Eric H. Klingenberg, Shafiq N. Fazel, Jared Bender
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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.
Claims22
A polyurethane 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.
A polyurethane formed from an isocyanate and a polyester diol, the polyurethane not crystallizing between about −10° C. and about 70° C. when coated as a thin film.
Dependencies are inferred from the claim text.