Eastman-kodak Company

Chin H Chen

Jianmin Shi

John L Fox

Ching W Tang

Kevin P Klubek

Samir Y Farid

Ramanuj Goswami

Annabel A Muenter

George A Reynolds

Jerome Robert Lenhard

Paul A Zielinski

Ian R Gould

Jerome H Perlstein

Stephen A Godleski

Michael Scozzafava

Yann Hung

Thomas E Goliber

Teh-Ming Kung

Ralph H Young

Steven A Van Slyke

Donald P Specht

Lal C Vishwakarma

Charles H Weidner

Steven A VanSlyke

Michael E O'Brien

James P Vanmeter

An organic EL device, including an anode and a cathode, and at least one organic luminescent layer containing a compound of the formula: ##STR1## wherein: X=S, or O

Green organic electroluminescent devices

A photographic element comprises at least one silver halide emulsion layer in which the silver halide is sensitized with a compound of formula

Silver halide light sensitive emulsion layer having enhanced

An organic EL device including an anode, a cathode, and an organic electroluminescent element between the anode and the cathode; the organic electroluminescent element includes an organic material or a mixture thereof of 9,10-bis(3'5'-diaryl)phenyl anthracene derivatives.

Organic electroluminescent elements for stable blue electroluminescent

An organic EL device comprising an anode, a cathode, and an organic electroluminescent element between the anode and the cathode; the organic electroluminescent element includes an organic material or a mixture thereof of 9,10-di-(2-naphthyl)anthracene derivatives.

Organic electroluminescent elements for stable electroluminescent

An organic EL device, includes an anode and a cathode, and at least one organic luminescent medium containing a compound of the formula: ##STR1## wherein: R.sub.1, and R.sub.2 are individually alkyl of from 1 to 20 carbon atoms, aryl, carbocyclic and other heterocyclic systems; and

Red organic electroluminescent devices

An organic EL device, includes an anode, cathode, and at least one organic luminescent layer including a compound of the formula: ##STR1## where: n is an integer of 2 or 3;

Efficient blue organic electroluminescent devices

A red fluorescent material includes a compound of the formula: ##STR1## wherein: R.sub.1, and R.sub.2 are individually alkyl of from 1 to 20 carbon atoms, aryl, carbocyclic and other heterocyclic systems; and

Red organic electroluminescent materials

An organic EL device, comprising an anode and a cathode, and at least one electron injecting and transporting layer containing fluorescent materials;

Electron transporting materials for organic electroluminescent devices

A luminescent material including a compound of the formula: ##STR1## where: n is an integer of 2 or 3;

Blue luminescent materials for organic electroluminescent devices

A process for the preparation of photographic binary sensitizing dyes, which comprise two separate, nonconjugated chromophores, one of which has the capability of adsorbing to a silver halide grain surface, the other of which is substantially non-adsorbing to silver halide. The process comprises reacting two dye compounds in a solvent in the presence of a 2-halo-1-alkylpyridinium salt and a 4-dialkylaminopyridine.

Process for the preparation of binary sensitizing dyes

A photographic element comprising at least one silver halide emulsion layer in which the silver halide is sensitized with a compound of the formula: ##STR1## wherein A is a silver halide adsorptive group that contains at least one atom of N, S, Se, or Te that promotes adsorption to silver halide, and L represents a linking group containing at least one C, N, S or O atom, k is 1 or 2, and XY is an fragmentable electron donor moiety in which X is an electron donor group and Y is a leaving group other than hydrogen, and wherein:

A photographic element comprises a support and at least one silver halide emulsion layer in which the silver halide is sensitized with a fragmentable electron donor of the formula X--Y, wherein X is an electron donor moiety and Y is a leaving group other than hydrogen, and wherein:

An organic EL device, comprising an anode and a cathode, and at least one organic luminescent medium containing a compound of benzazoles of the formula: ##STR1## wherein: n is an integer of from 3 to 8;

Blue organic electroluminescent devices

An organic electroluminescent device which includes an anode and a cathode, and an organic electroluminescent element disposed between the anode and cathode. The organic electroluminescent element has at least one hole transporting layer. The hole transport layer includes a polyaromatic amine of the formula: ##STR1## where n is equal to 3, 4, 5, or 6;

Organic electroluminescent devices with high thermal stability

Electrophotographic elements contain certain chemical compounds as electron-transport agents, which are substituted derivatives of phospha-2,5-cyclohexadiene. These compounds have good solubility or dispersibility in organic solvents and polymeric binders, and they exhibit good electron-transport properties in electrophotographic elements.

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Mendon, NY, United States of America

Chin H Chen