Paul L Zengerle from 1184 Crab Walk, Charleston, SC 29412, age 71, Phone: (585)9674592

Us Patents

Thermally Developable Emulsions And Imaging Materials Containing Mixture Of Silver Ion Reducing Agents
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US Patent:

6548233, Apr 15, 2003
Filed:

Mar 28, 2002
Appl. No.:

10/109272
Inventors:

John W. Boettcher - Webster NY
Paul L. Zengerle - Rochester NY
Roger L. Klaus - Rochester NY
Assignee:

Eastman Kodak Company - Rochester NY
International Classification:

G03C 516
US Classification:

430350, 430523, 430546, 430570, 430603, 430607, 430617, 430619, 430620, 430640, 430944, 430964, 430965
Abstract:

Aqueous-based thermally sensitive emulsions and imaging materials include two or more hindered phenol silver ion reducing agents in a non-crystalline reducing agent composition. Such compositions can be provided as evaporated dispersions and can be formulated in aqueous coating compositions to provide thermally developable materials such as thermographic and photothermographic materials.

Cyan Coupler Dispersion With Increased Activity
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US Patent:

6680165, Jan 20, 2004
Filed:

Oct 24, 2002
Appl. No.:

10/279892
Inventors:

Jerrold N. Poslusny - Rochester NY
Paul B. Merkel - Victor NY
David A. Steele - Webster NY
Drake M. Michno - Webster NY
David S. Ross - Rochester NY
Richard K. Rothrock - Naples NY
Paul L. Zengerle - Rochester NY
Assignee:

Eastman Kodak Company - Rochester NY
International Classification:

G03C 108
US Classification:

430546, 430552, 430553, 430384, 430385
Abstract:

The invention provides a color negative photographic element comprising a light sensitive silver halide emulsion imaging layer having associated therewith a cyan dye-forming coupler dispersion comprising a first 2-ureido-5-acylamino substituted phenolic cyan dye-forming coupler [P], a second phenolic cyan dye-forming coupler [AP] where the 2-substituent is other than an ureido group, a substantially non-color-developable phenolic activator compound [ACT], and a non-phenolic organic coupler solvent having a boiling point of at least 150C; wherein compounds represented by [P], [AP], and [ACT] are present in the coupler dispersion in relative weight fractions of from 0. 30 to 0. 65 for [P], from 0. 15 to 0. 35 for [AP], and from 0. 15 to 0. 35 for [ACT], provided the sum of the relative weight fractions for [P]+[AP]+[ACT]=1, and the weight ratio of the non-phenolic coupler solvent in the coupler dispersion is from 0. 30 to 2.

Color Photographic Element With Uv Absorber
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US Patent:

7101659, Sep 5, 2006
Filed:

Jul 1, 2005
Appl. No.:

11/174306
Inventors:

Paul L. Zengerle - Rochester NY, US
Kurt M. Schroeder - Spencerport NY, US
Rebecca A. Ott - Rochester NY, US
Efrain O. Morales - Rochester NY, US
Assignee:

Eastman Kodak Company - Rochester NY
International Classification:

G03C 1/46
G03C 1/85
G03C 1/815
G03C 1/825
US Classification:

430502, 430507, 430512, 430931, 430523, 430527
Abstract:

A photographic element is described comprising a support bearing at least one blue light sensitive silver halide emulsion layer and an ultraviolet filter layer above the light sensitive layer, wherein the ultraviolet filter layer comprises an ultraviolet absorbing dibenzoylmethane compound of formula (I).

Silver Halide Light-Sensitive Element
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US Patent:

7153640, Dec 26, 2006
Filed:

Oct 28, 2005
Appl. No.:

11/261047
Inventors:

Paul L. Zengerle - Rochester NY, US
Christopher J. Haller - Rochester NY, US
Assignee:

Eastman Kodak Company - Rochester NY
International Classification:

G03C 1/08
G03C 7/26
G03C 7/32
G03C 1/46
G03C 1/005
US Classification:

430546, 430502, 430503, 430543, 430551, 430552, 430553, 430567, 430631
Abstract:

A silver halide light sensitive photographic element comprising a support bearing at least one cyan image forming hydrophilic colloid layer comprising cyan image dye forming coupler of Formula I and a saturated alcoholic high boiling solvent or mixture of solvents of Formula II:Formula I.

Silver Halide Light-Sensitive Element
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US Patent:

7223529, May 29, 2007
Filed:

May 5, 2006
Appl. No.:

11/429614
Inventors:

Paul L. Zengerle - Rochester NY, US
Christopher J. Haller - Rochester NY, US
Assignee:

Eastman Kodak Company - Rochester NJ
International Classification:

G03C 1/46
US Classification:

430502, 430546, 430552, 430553, 430558, 430523, 430531, 430631
Abstract:

A silver halide light-sensitive photographic element comprising a support having on one side thereof at least one cyan image forming hydrophilic colloid layer comprising a cyan image dye forming coupler, and an outermost protective overcoat layer providing a coefficient of friction of less than 0. 20 after standard ECP-2B processing, wherein the ratio of permanent solvent to coupler in the cyan image forming layer is less than 0. 8.

Method Of Preparation Of Direct Dispersions Of Photographically Useful Chemicals
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US Patent:

7338756, Mar 4, 2008
Filed:

Oct 24, 2003
Appl. No.:

10/692535
Inventors:

Paul L. Zengerle - Rochester NY, US
Richard K. Rothrock - Naples NY, US
Jerrold N. Poslusny - Rochester NY, US
Stephen P. Singer - Spencerport NY, US
Peter P. Garrisi - Rochester NY, US
Paul B. Merkel - Victor NY, US
Assignee:

Eastman Kodak Company - Rochester NY
International Classification:

G03C 1/005
G03C 1/08
US Classification:

430546, 430543, 430631, 430642, 430539
Abstract:

A process for making a direct dispersion of a photographically useful material comprising: mixing (i) an aqueous phase and (ii) a liquid organic phase under conditions of shear or turbulence to form a dispersion of the organic phase dispersed in the aqueous phase; wherein the liquid organic phase comprises one or more photographically useful materials and one or more organic solvents having a boiling point of at least 150 C. , a molecular weight less than or equal to 300, and a solvatochromic parameter β value greater than or equal to 0. 50, wherein the weight ratio of the sum of the solvents having a boiling point of at least 150 C. , a molecular weight less than or equal to 300, and a solvatochromic parameter β value greater than or equal to 0. 50 to the photographically useful materials does not exceed 0. 25. The use of relatively low levels of specified high-boiling organic solvents enables the direct dispersion of hydrophobic photographically useful materials with low solubility in conventional primary photographic useful solvents without crystallization problems or excessive decomposition.

Color Photographic Materials With Yellow Minimum Density Colorants
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US Patent:

7629112, Dec 8, 2009
Filed:

May 30, 2008
Appl. No.:

12/129726
Inventors:

Paul L. Zengerle - Rochester NY, US
Drake M. Michno - Webster NY, US
James H. Reynolds - Rochester NY, US
Steven P. Szatynski - Rochester NY, US
John W. Harder - Rochester NY, US
Assignee:

Eastman Kodak Company - Rochester NY
International Classification:

G03C 1/46
G03C 1/06
G03C 7/46
G03C 1/815
G03C 7/26
US Classification:

430504, 430517, 430559, 430570, 430449, 430464, 430374, 430388, 430390
Abstract:

Silver halide color photographic elements having multiple color imaging layers contain a permanent, pre-formed yellow colorant that is present in an amount to provide a status M blue density greater than 0. 003 per mg/m. This colorant provides minimum density at lower cost and can be incorporated with minimal or no organic solvents and thus enable a reduced organic load that may lead to improved film physical properties.

Color Photographic Materials With Magenta Minimum Density Dyes
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US Patent:

7632632, Dec 15, 2009
Filed:

Jun 27, 2008
Appl. No.:

12/147548
Inventors:

Paul L. Zengerle - Rochester NY, US
John W. Harder - Rochester NY, US
Drake M. Michno - Webster NY, US
James H. Reynolds - Rochester NY, US
Steven P. Szatynski - Rochester NY, US
Assignee:

Eastman Kodak Company - Rochester NY
International Classification:

G03C 7/46
G03C 7/32
G03C 5/26
G03C 1/08
G03C 1/005
US Classification:

430374, 430386, 430390, 430449, 430464, 430502, 430503, 430517, 430559, 430570, 430504
Abstract:

Silver halide color photographic elements having multiple color imaging layers contain a permanent, pre-formed magenta dye that is present in an amount to provide a status M green density greater than 0. 005 per mg/m. This dye provides minimum density at lower cost and enables lower dye levels and a reduced organic load that may lead to improved film physical properties.