Wayne Bowman

Author:

Wayne D. Bowman

ISBN #:

0195112962

US Patent:

55344780, Jul 9, 1996

Filed:

Jun 6, 1995

Appl. No.:

8/469132

Inventors:

Wayne A. Bowman - Walworth NY
Leslie Shuttleworth - Webster NY
Helmut Weber - Webster NY

Assignee:

Eastman Kodak Company - Rochester NY

International Classification:

B41M 5035
B41M 538

US Classification:

503227

Abstract:

A thermal dye transfer assemblage comprising: (a) a dye-donor element comprising a support having thereon a dye layer comprising a dye dispersed in a polymeric binder, the dye being a cationic dye or a deprotonated cationic dye which is capable of being reprotonated to a cationic dye having a N--H group which is part of a conjugated system, and (b) a dye-receiving element comprising a support having thereon a polymeric dye image-receiving layer, the dye-receiving element being in a superposed relationship with the dye-donor element so that the dye layer is in contact with the dye image-receiving layer, the dye image-receiving layer comprising a polyester ionomer comprising a polyester backbone containing units of a sulfonic acid or a sulfonimide or their salts, with the proviso that when the dye is a deprotonated cationic dye which is capable of being reprotonated to a cationic dye having a N--H group which is part of a conjugated system, the dye image-receiving layer comprises a polyester ionomer comprising a polyester backbone containing units of a sulfonic acid or a sulfonimide.

US Patent:

56271280, May 6, 1997

Filed:

Mar 1, 1996

Appl. No.:

8/609817

Inventors:

Wayne A. Bowman - Walworth NY
Daniel J. Harrison - Pittsford NY
Karen M. Kosydar - Penfield NY
Teh-Ming Kung - Rochester NY
Kristine B. Lawrence - Rochester NY
William H. Simpson - Pittsford NY

Assignee:

Eastman Kodak Company - Rochester NY

International Classification:

B41M 5035
B41M 538

US Classification:

503227

Abstract:

A thermal dye transfer assemblage comprising: (a) a dye-donor dement comprising a support having thereon a dye layer comprising a dye dispersed in a polymeric binder, the dye being a deprotonated cationic dye which is capable of being reprotonated to a cationic dye having a N--H group which is part of a conjugated system, and (b) a dye-receiving element comprising a support having thereon a polymeric dye image-receiving layer, the dye-receiving element being in a superposed relationship with the dye-donor element so that the dye layer is in contact with the polymeric dye image-receiving layer, the polymeric dye image-receiving layer comprising a mixture of an organic polymeric or oligomeric acid which is capable of reprotonating the deprotonated cationic dye and a polymer having a Tg of less than about 19. degree. C. and having no or only slight acidity.

US Patent:

56228082, Apr 22, 1997

Filed:

Mar 12, 1996

Appl. No.:

8/614413

Inventors:

Wayne A. Bowman - Walworth NY
Charles P. Hagmaier - Rochester NY
Frank D. Manioci - Henrietta NY

Assignee:

Eastman Kodak Company - Rochester NY

International Classification:

G03C 826
G03C 725
G03C 724

US Classification:

430199

Abstract:

Dye imbibition printing blanks are disclosed comprising a support bearing a layer comprising a cationic mordant, a hydrophilic colloid and a plasticizer polymer, wherein the plasticizer polymer is a latex polymer having a glass transition temperature below about 30. degree. C. comprising from about 2 to 20 wt % of units having a quaternary ammonium group. In a preferred embodiment, the latex polymer comprises a vinyl co-polymer addition product of from about 50 to 98 weight percent of acrylic or methacrylic ester units, 0 to 48 weight percent of vinyl benzene units and 2 to 20 weight percent of the quaternary ammonium group containing unit. This latex provides a dye imbibition printing blank substantially free of haze and brittleness.

US Patent:

54299063, Jul 4, 1995

Filed:

Feb 17, 1994

Appl. No.:

8/198020

Inventors:

Wayne A. Bowman - Walworth NY
Karen M. Kosydar - Penfield NY

Assignee:

Eastman Kodak Company - Rochester NY

International Classification:

B41M 5035
B41M 526

US Classification:

430200

Abstract:

This invention relates to a dye-donor element for thermal dye transfer comprising a support having thereon a dye layer comprising an image dye dispersed in a binder, wherein the binder comprises a water-dispersible vinyl copolymer having a glass transition temperature below about 54. degree. C. and having the formula: ##STR1## wherein: R. sup. 1 and R. sup. 2 each independently represents hydrogen or methyl; D represents a substituted or unsubstituted phenyl group; or --COOR. sup. 3, where R. sup. 3 represents a substituted or unsubstituted alkyl group of 1 to about 6 carbon atoms, a substituted or unsubstituted cycloalkyl group of about 5 to about 8 carbon atoms, or an organic group containing ethylenic unsaturation; E represents --C. sub. 6 H. sub. 4 --; --CONHR. sup. 4 --; or --COOR. sup.

US Patent:

53859685, Jan 31, 1995

Filed:

Jun 8, 1993

Appl. No.:

8/073188

Inventors:

Wayne A. Bowman - Walworth NY
Mario D. DeLaura - Rochester NY
Norman S. Edgett - Rochester NY

Assignee:

Eastman Kodak Company - Rochester NY

International Classification:

C08J 510
C08K 334
C08L 3312

US Classification:

524493

Abstract:

An aqueous coating composition for applying a print retaining antistatic layer consisting essentially of an aluminum modified colloidal silica and an antistatic agent in a binder polymer, the binder polymer consisting essentially of an addition product of from about 30 to 78 mol % of an alkyl methacrylate wherein the alkyl group has from 3 to 8 carbon atoms, from about 2 to about 10 mol % of an alkali metal salt of an ethylenically unsaturated sulfonic acid and from 20 to about 65 mol % of a vinyl benzene, the polymer having a glass transition point of from 30. degree. to 65. degree. C.

US Patent:

57099715, Jan 20, 1998

Filed:

Mar 12, 1996

Appl. No.:

8/614423

Inventors:

Wayne Arthur Bowman - Walworth NY
Charles Peter Hagmaier - Rochester NY
Frank Dean Manioci - Henrietta NY

Assignee:

Eastman Kodak Company - Rochester NY

International Classification:

G03C 185
G03C 852
B41N 100

US Classification:

430 14

Abstract:

Dye imbibition printing blanks are disclosed comprising a support bearing on one side thereof a dye-receiving layer comprising a cationic mordant, and further comprising an antistatic layer substantially free of cationic polymers. The antistatic layer is preferably provided on the opposite side of the support relative to the dye-receiving layer. Such antistatic layer provides improved antistatic properties which enable high manufacturing and processing speeds without adversely affecting printed image qualities.

US Patent:

59725915, Oct 26, 1999

Filed:

Dec 30, 1993

Appl. No.:

8/179830

Inventors:

Marianne Yarmey - Amhurst MA
Wayne Arthur Bowman - Walworth NY
Stephen Joseph Kozak - Webster NY
Gary Francis Mitchell - Rochester NY
Glenn Thomas Pearce - Fairport NY
Melvin David Sterman - Pittsford NY

Assignee:

Eastman Kodak Company - Rochester NY

International Classification:

G03C 1015
G03C 138

US Classification:

430631

Abstract:

The invention is generally accomplished by providing a photographic element and a process of its formation wherein a gelatin silver halide emulsion is provided with a thickener comprising a copolymer of the structure wherein A comprises about 10 to about 20 parts by weight of said copolymer, and B comprises about 80 to about 90 parts by weight of said copolymer. It is particularly preferred that the copolymer be provided in a hardener layer to minimize the amount of gelatin needed and thus reduce the reaction of hardener with gelatin. The invention finds a preferred use in curtain coating wherein there is a greater need for high viscosity materials, particularly at the bottom of a group of layers in order to minimize distortions of the layers as they are applied in the curtain coating process.

US Patent:

53858190, Jan 31, 1995

Filed:

Dec 22, 1993

Appl. No.:

8/171588

Inventors:

Wayne A. Bowman - Walworth NY
Roger A. Weiss - Webster NY
Gerald W. Klein - Issaquah NY
John E. Keevert - Rochester NY
Shane C. Weber - Rochester NY

Assignee:

Eastman Kodak Company - Rochester NY

International Classification:

G03C 1015
G03C 1005
G03C 104

US Classification:

430569

Abstract:

A process for preparing a thin tabular grain silver halide emulsion comprised of silver halide grains which have a halide content of at least 50 mole percent bromide, wherein tabular grains of less than 0. 15 micrometers in thickness and having an aspect ratio of greater than 8 account for greater than 50 percent of the total grain projected area, comprises the steps of nucleating the silver halide grains with a gelatino-peptizer or with the use of certain synthetic polymers that serve as effective nucleation peptizers and then growing the silver halide grains with the use of either a gelatino-peptizer or certain synthetic polymers that serve as effective growth peptizers.