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US 5,879,821 AGranted
Electroluminescent polymer compositions and processes thereof
AssigneeXerox Corporation
InventorBing R. Hsieh
Life of this patent
Estimating the term…
Abstract
A charge transport polymer including repeat units selected from mers of the formulas ##STR1## and copolymers, and mixtures thereof.
Claims20
A charge transport polymer comprised of repeat units selected from the group consisting of the following formulas and mixtures thereof, ##STR34## wherein G is nil, O, S, N--Ph, vinylene, acetylene, p-phenylene, m-phenylene, o-phenylene, or --CH.dbd.CH--Ph--CH.dbd.CH--;
- R is H, methyl, or methoxy;
- R' is an aryl group, an alkyl group, or an alkoxy group;
- R" is hydrogen, halogen, an aryl group, an alkyl group;
- X is nil, CH2, O, and S;
- p-Ar is a para-substituted aromatic group;
- and G' is an unsaturated double bond group.
3 more elements
A charge transport polymer comprised of repeat units selected from the group of formulas ##STR38## wherein R and R.sub.1 are independently selected from H, methyl, ethyl, and methoxy;
- R' and R'" are independently selected from hydrogen, phenyl, or alkyl groups with 2 to about 24 carbon atoms, alkoxy groups with 1 to about 12 carbon atoms;
- R' is selected from halogens, aryl groups with 6 to about 24 carbon atoms, and alkyl groups with 2 to about 24 carbon atoms.
Dependencies are inferred from the claim text.