Eastman-kodak Company

Ann L Carroll-Lee

Steven Evans

Derek D Chapman

Ruizheng Wang

Helmut Weber

Linda A Kaszczuk

Csaba A Kovacs

Kevin W Williams

Charles H Weidner

Ellen M Pyszczek

Deepak Shukla

Douglas Robert Robello

Thomas R Welter

Huijuan D Chen

David Erdtmann

Steven G Link

Wendy G Ahearn

Joan C Potenza

Thomas Robert Welter

Wendy Gail Ahearn

A thin layer of organic semiconductor material comprising a comprising an organic semiconductor thin film material is disclosed in which the thin film material substantially comprises a heteropyrene compound or derivative. In one embodiment, a thin film transistor comprises a layer of the organic semiconductor material. Further disclosed is a process for fabricating an organic thin-film transistor device, preferably by relative low-temperature sublimation or solution-phase deposition onto a substrate.

Heteropyrene-based semiconductor materials for electronic devices and methods of making the same

The invention relates to monoazo colorants derived from pyrazolobenzodiazinedioxides of Formula 1:  wherein Rand Rare hydrogen or any non-metallic group, n is 0-4, Ris hydrogen, acyl, aryl, alkenyl, alkynyl or alkyl, A represents an aromatic heterocyclic ring or an aromatic group of Formula 2:  wherein Rand Rare hydrogen, alkyl, sulfonic acid, or 1-4 carbon alkoxy, Ris any non-metallic group, m is 0-3, and Rand R, Rand R, or, when m&#x3e;1, two Rgroups can be joined to form a fused carbocyclic or heterocyclic aromatic or non-aromatic ring. The invention also relates to an aqueous ink that comprises at least one colorant of Formula 1:  wherein A represents an aromatic or heteroaromatic ring, and A can be bonded to other rings that can be aromatic, aliphatic or heterocyclic, and an ink printing method using the colorant-containing ink.

Monoazo colorants from pyrazolobenzodiazinedioxides

Disclosed is a dye combination and a thermal dye transfer yellow donor element containing the combination of dyes useful for forming a light stable yellow image comprising a yellow dye having the formula:wherein:

Yellow images with improved light stability and yellow dyes useful therein

Disclosed is a molecule containing a first chromophore that exhibits a first absorption maximum above 700 nm and a second chromophore that exhibits a second absorption maximum different from the first absorption maximum, wherein the absorption of the first and second chromophores are substantially independent of each other. The molecule exhibits improved stability.

Bichromophoric molecules

A laser-induced thermal recording element comprising a support having thereon a colorant layer comprising a colorant dispersed in a polymeric binder, said colorant layer having associated therewith a laser light-absorbing dye absorbing at the wavelength of a laser used to expose said element, said laser light-absorbing dye comprising a polymethine (cyanine) dye having covalently bonded thereto a phenylenediamine moiety. The element exhibits improved dye stability.

Laser thermal imaging process, dye, and element

An optical recording element having a transparent substrate and on the surface of said substrate, a recording layer, a light reflecting layer is disclosed. The recording layer comprises (i) a metallized azo ether dye having an azo group linking a substituted 3-hydroxypyridine nucleus to a phenyl nucleus wherein the phenyl nucleus has an ether substituent ortho to the azo group and said phenyl nucleus is free of strong electron withdrawing groups and (ii) a cyanine dye. The recording layer also has, when unrecorded a refractive index, at a selected wavelength from 400 to 660 nm, comprising a real part (n) greater than 1.8 and an imaginary part (k) less than 0.2.

Optical recording elements containing mixture of metallized azo ether and cyanine dyes

An ink jet ink composition comprising water, a humectant and a water-soluble pyrazoleazoindole dye.

Dye for ink jet ink

Ink jet printing method

Metallized azo ether dyes having an azo group linking a substituted 3-hydroxypyridine nucleus to a phenyl nucleus are disclosed. The phenyl nucleus has an ether substituent ortho to the azo group. The phenyl nucleus is free of strong electron withdrawing substituents. The dyes are useful in optical recording elements.

Growing community of inventors

Rochester, NY, United States of America

Ann L Carroll-Lee