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. 26, 2011
Filed:
Jan. 12, 2009
Lan Cao, Arlington, MA (US);
David D. Miller, Wakefield, MA (US);
Richard M. Webber, Brookline, MA (US);
Shafiq N. Fazel, Allentown, PA (US);
Lan Cao, Arlington, MA (US);
David D. Miller, Wakefield, MA (US);
Richard M. Webber, Brookline, MA (US);
Shafiq N. Fazel, Allentown, PA (US);
E Ink Corporation, Cambridge, MA (US);
Air Products and Chemicals, Inc., Allentown, PA (US);
Abstract
A polyurethane formed from an isocyanate, a polyether diol and a polyester diol, the polyester diol having a molecular weight less than about 2000, or 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 molar ratio of polyether diol to polyester diol being in the range of from about 1:9 to about 9:1. The polyurethane is useful as a lamination adhesive in electro-optic displays, and in components used to form such displays.