Gerald M Leszyk

US Patent:

53607066, Nov 1, 1994

Filed:

Nov 23, 1993

Appl. No.:

8/156594

Inventors:

Charles C. Anderson - Penfield NY
Gerald M. Leszyk - Spencerport NY
Kenneth L. Tingler - Rochester NY

Assignee:

Eastman Kodak Company - Rochester NY

International Classification:

G03C 185

US Classification:

430529

Abstract:

Imaging elements comprising a support, at least one imaging layer and an antistat layer, said antistat layer comprising vanadium pentoxide in a binder, said binder being a polyesteranionomer and coating compositions for forming such antistat layers.

US Patent:

57190160, Feb 17, 1998

Filed:

Nov 12, 1996

Appl. No.:

8/746618

Inventors:

Paul A. Christian - Pittsford NY
Dennis J. Eichorst - Fairport NY
Gerald M. Leszyk - Spencerport NY

Assignee:

Eastman Kodak Company - Rochester NY

International Classification:

G03C 185
G03G 510

US Classification:

430530

Abstract:

The present invention describes imaging elements which include a support, an image-forming layer and an electrically-conductive layer. The electrically conductive layer is a dispersion in a film-forming binder of acicular, crystalline single phase, conductive metal-containing particles having a cross-sectional diameter less than 0. 02. mu. m and an aspect ratio of greater than or equal to 5:1.

US Patent:

44775482, Oct 16, 1984

Filed:

Dec 16, 1983

Appl. No.:

6/562043

Inventors:

Louis P. Harasta - Rochester NY
Gerald M. Leszyk - Spencerport NY
Edward D. Morrison - Rochester NY

Assignee:

Eastman Kodak Company - Rochester NY

International Classification:

G03G 514
G03G 1320

US Classification:

430 14

Abstract:

Curable coating compositions useful for protective treatment of elements bearing electrographically-formed toner images are comprised of (a) either (i) a mixture of a siloxy-containing polycarbinol and an acrylated urethane, or (ii) a siloxy-containing acrylated urethane; (b) a multifunctional acrylate; and, optionally (c) a free radical photoinitiator. Toner image-bearing elements, such as electrographic elements and specifically photoconductive recording films, can be provided with a protective overcoat layer which is bonded to the element and which serves to protect the toner image from abrasion and scratches. Such an overcoat layer is provided by coating the element with a curable composition and curing the resulting coating. The protective overcoat layer is applied to the toner image-bearing side of the element.

US Patent:

40426548, Aug 16, 1977

Filed:

Mar 13, 1975

Appl. No.:

5/558031

Inventors:

Gerald M. Leszyk - Rochester NY
Edward D. Morrison - Rochester NY
Robert F. Williams - Rochester NY

Assignee:

Eastman Kodak Company - Rochester NY

International Classification:

B29C 1304

US Classification:

264 22

Abstract:

Thin plastic parts which can have precise tolerances and can be of complex shape are prepared by casting a viscous radiation-curable composition onto a support, such as a moving web of polymeric material, in the shape of the desired part and then irradiating, for example with ultraviolet radiation or high energy electrons, to cause curing of the composition to a solid plastic. The radiation-curable composition is formulated with viscosity and flow characteristics which enable it to be cast in the exact shape of the part desired yet retain this shape during curing while supported only by the surface on which it has been cast. Plastic parts made by this method can be formed entirely of the radiation-curable composition by casting onto a web having a release surface from which the part can be stripped subsequent to curing or can be formed partially from a web material and partially from the radiation-curable composition by casting onto a web to which the composition will bond and subsequently cutting the web into discrete portions which include the cured composition.

US Patent:

57311196, Mar 24, 1998

Filed:

Nov 12, 1996

Appl. No.:

8/747480

Inventors:

Dennis J. Eichorst - Fairport NY
Paul A. Christian - Pittsford NY
Gerald M. Leszyk - Spencerport NY

Assignee:

Eastman Kodak Company - Rochester NY

International Classification:

G03C 185
G03C 186
G03G 510

US Classification:

430 63

Abstract:

The present invention describes an imaging element which includes a support, an image-forming layer, a transparent magnetic recording layer, and an electrically-conductive layer. The electrically-conductive layer is a dispersion in a film-forming binder of acicular, crystalline single phase, semi-conductive metal-containing particles having a cross-sectional diameter less than 0. 02. mu. m and an aspect ratio of greater than or equal to 5:1.

US Patent:

41719794, Oct 23, 1979

Filed:

May 4, 1978

Appl. No.:

5/902576

Inventors:

Carl P. Novak - Rochester NY
Edward D. Morrison - Rochester NY
Gerald M. Leszyk - Rochester NY

Assignee:

Eastman Kodak Company - Rochester NY

International Classification:

G03C 100

US Classification:

96119R

Abstract:

Photographic elements, such as still films, motion picture films, paper prints, microfiche, and the like, which have defects such as scratches, abrasion marks and the like, which impair the appearance or projection capabilities of the element are treated with a restorative composition which fills in the defects so as to effectively eliminate them and restore the element to a substantially defect-free condition. The restorative composition which is applied to the photographic element is a radiation-curable composition comprising an acrylated urethane, an aliphatic ethylenically-unsaturated carboxylic acid and a multifunctional acrylate. It is applied to the element, at least in the region of the defect being treated, and, is then subjected to radiation, such as, for example, ultraviolet light irradiation or high energy electron bombardment, sufficient to bond it to the element and cure it to a transparent, flexible, scratch-resistant, cross-linked polymeric material.

US Patent:

53805844, Jan 10, 1995

Filed:

May 21, 1993

Appl. No.:

8/065978

Inventors:

Charles C. Anderson - Penfield NY
David F. Jennings - Penfield NY
Gerald M. Leszyk - Spencerport NY
David A. Niemeyer - Rochester NY

Assignee:

Eastman Kodak Company - Rochester NY

International Classification:

B32B 516

US Classification:

428323

Abstract:

An electroconductive imaging element, that is especially useful in a high speed laser printing process utilizing electrostatography, is comprised of an insulating support, an electrically-conductive layer overlying the support and a thermoplastic dielectric imaging layer overlying the electrically-conductive layer. The electrically-conductive layer, which is comprised of at least 3 milligrams per square meter of a colloidal gel of vanadium pentoxide dispersed in a polymeric binder combines a high degree of transparency with a high degree of electrical conductivity. The thermoplastic dielectric imaging layer has a thickness of at least 0. 2 micrometers and a surface resistivity of at least 10. sup. 13 ohms/square and is comprised of a thermoplastic polymer with a glass transition temperature of at least 20. degree. C.

US Patent:

44264313, Jan 17, 1984

Filed:

Sep 22, 1982

Appl. No.:

6/421694

Inventors:

Louis P. Harasta - Rochester NY
Gerald M. Leszyk - Spencerport NY
Edward D. Morrison - Rochester NY

Assignee:

Eastman Kodak Company - Rochester NY

International Classification:

G03C 178
G03C 176
G03C 168
C08F 246

US Classification:

430 14

Abstract:

Radiation-curable compositions useful for restorative and/or protective treatment of photographic elements are comprised of a polymerizable epoxy compound, a cationic initiator for initiating polymerization of the epoxy compound, a polymerizable acrylic compound, a haloalkylated aromatic ketone which serves as a free-radical initiator for initiating polymerization of the acrylic compound, and a polymerizable organofunctional silane. Photographic elements, such as still films, motion picture films, paper prints, microfiche, and the like, are provided with a protective overcoat layer which is permanently bonded to the element, and serves to protect it from abrasion and scratches, by coating the element with the radiation-curable composition and irradiating the coating to bond it to the element and cure it to form a transparent, flexible, scratch-resistant, cross-linked polymeric layer. The protective overcoat layer can be applied to the image-bearing side of the element or to the support side of the element or to both sides. The radiation-curable composition can also be used as a restorative composition in the treatment of photographic elements which have scratches, abrasion marks, and the like, which impair the appearance or projection capabilities of the element.