Optical: systems and elements – Optical modulator – Light wave temporal modulation
Reexamination Certificate
2011-07-26
2011-07-26
Lester, Evelyn A. (Department: 2873)
Optical: systems and elements
Optical modulator
Light wave temporal modulation
C428S844500, C428S844710, C428S844800, C345S107000, C156S250000, C156S257000, C528S075000, C528S076000, C359S290000, C359S296000
Reexamination Certificate
active
07986450
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.
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Cao Lan
Fazel Shafiq N.
Miller David D.
Webber Richard M.
Air Products and Chemicals Inc.
Cole David J.
E Ink Corporation
Lester Evelyn A.
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