John P Mccabe

US Patent:

40110800, Mar 8, 1977

Filed:

Aug 30, 1974

Appl. No.:

5/502259

Inventors:

John Murray McCabe - Pittsford NY

Assignee:

Eastman Kodak Company - Rochester NY

International Classification:

G03G 504

US Classification:

96 15

Abstract:

A method of overcoating a conductive polymer support with an aqueous-based polymer coating comprises crosslinking the conductive polymer with hydrolyzed tetraethyl orthosilicate prior to overcoating. An electrophotographic element can be prepared by coating a support with a conductive layer comprising a conductive polymer crosslinked with hydrolyzed tetraethyl orthosilicate (polysilicic acid) and overcoating with an aqueous-based layer of an electrically insulating polymer containing a photoconductor.

US Patent:

53087330, May 3, 1994

Filed:

Dec 31, 1992

Appl. No.:

7/999021

Inventors:

Donald S. Rimai - Webster NY
Louis J. Sorriero - Rochester NY
John M. McCabe - Pittsford NY

Assignee:

Eastman Kodak Company - Rochester NY

International Classification:

G03G 1316

US Classification:

430126

Abstract:

A method is provided for non-electrostatically transferring dry toner particles which comprise a toner binder and have a particle size of 8 micrometers or less from the surface of an element to a receiver. The receiver comprises a substrate having a coating of a semi-crystalline polyester on a surface of the substrate. The semi-crystalline polyester has a glass transition temperature in a range of from approximately 5. degree. C. to 80. degree. C. ; a melting temperature in a range of from approximately 40. degree. C. to 200. degree. C. ; a weight average molecular weight in a range of from approximately 10,000 to 150,000; a number average molecular weight in a range of from approximately 5,000 to 75,000; a crystallinity of from approximately 5 to 25 percent by weight, based on the total weight of the polyester and a surface energy of from approximately 44 to 52 dynes/cm. The method involves preheating the receiver to a temperature ranging from approximately 70. degree. C. to 95. degree. C. and contacting the toner-bearing element with the receiver to effectuate the transfer of virtually 100% of the toner particles from the element to the receiver and thereafter separating the receiver from the element while the temperature of the semi-crystalline polyester coating on the receiver is maintained above the glass transition temperature of the semi-crystalline polyester.

US Patent:

50895478, Feb 18, 1992

Filed:

Aug 6, 1990

Appl. No.:

7/563002

Inventors:

John M. McCabe - Pittsford NY
John C. Wilson - Rochester NY

Assignee:

Eastman Kodak Company - Rochester NY

International Classification:

C08L 7504

US Classification:

524262

Abstract:

A cross-linked low surface adhesion composition, that can be utilized as either an electrographic toner powder or as an additive for conventional electrographic toner powder, exhibits improved transfer and contributes to an increase in the useful life of the developer. The low surface adhesion composition employs a silicone resin and a polyester resin cross-linked with a polyfunctional epoxy novolac resin.

US Patent:

41606663, Jul 10, 1979

Filed:

May 25, 1977

Appl. No.:

5/800594

Inventors:

John M. McCabe - Rochester NY
William E. Yoerger - Rochester NY

Assignee:

Eastman Kodak Company - Rochester NY

International Classification:

G03G 506
G03G 509

US Classification:

96 1PC

Abstract:

Photoconductive insulating compositions comprising organic photoconductors are described. Organic photoconductor materials such as p-terphenyl or polyvinylcarbazole are dispersed or dissolved in an electrically insulating binder and chemically sensitized with a polymer having repeating units to which are appended a monovalent chlorendate radical. When employing the aforesaid polymeric chemical sensitizer, acrylic polymers or cellulose nitrates are especially useful as insulating binders for heterogeneous compositions of the subject type. Or, by omitting conventional binders, the described polymeric chemical sensitizer can function simultaneously as chemical sensitizer and insulating binder for such photoconductive compositions. Further, the present polymeric chemical sensitizer is particularly useful with one or more additional chemical sensitizers to yield sensitized compositions with especially desirable properties. Compositions comprising the polymeric chemical sensitizers of this invention are applied to an electrically conducting support to prepare electrophotographic elements.

US Patent:

51027658, Apr 7, 1992

Filed:

Aug 6, 1990

Appl. No.:

7/563004

Inventors:

John M. McCabe - Pittsford NY
John C. Wilson - Rochester NY

Assignee:

Eastman Kodak Company - Rochester NY

International Classification:

G03G 9097

US Classification:

430110

Abstract:

A toner composition comprising a binder and a 2-imidazoline is provided.

US Patent:

51127156, May 12, 1992

Filed:

Aug 6, 1990

Appl. No.:

7/563011

Inventors:

Lawrence P. DeMejo - Rochester NY
John M. McCabe - Pittsford NY
John C. Wilson - Rochester NY

Assignee:

Eastman Kodak Company - Rochester NY

International Classification:

G03G 9087

US Classification:

430109

Abstract:

Low fusing temperature toner compositions with good keep and broad fusing latitude characteristics are provided. The toner compositions are the reaction product of a linear or branched carboxylated polyester crosslinked with an epoxy novolac resin utilizing a multi-purpose additive as a catalyst for the crosslinking reaction and as a charge control agent for the toner powder.

US Patent:

50573926, Oct 15, 1991

Filed:

Aug 6, 1990

Appl. No.:

7/563003

Inventors:

John M. McCabe - Pittsford NY
John C. Wilson - Rochester NY

Assignee:

Eastman Kodak Company - Rochester NY

International Classification:

C08F 2000
G03G 908

US Classification:

430109

Abstract:

A low fusing temperature toner powder with excellent keep and grindability characteristics is provided which employs a polyblend of a crystalline polyester and an amorphous polyester that has been cross-linked with an epoxy novolac resin in the presence of a crosslinking catalyst.

US Patent:

39753522, Aug 17, 1976

Filed:

Mar 13, 1975

Appl. No.:

5/558030

Inventors:

William E. Yoerger - Rochester NY
John M. McCabe - Pittsford NY
John F. Wright - Rochester NY

Assignee:

Eastman Kodak Company - Rochester NY

International Classification:

C08K 502
C08K 554

US Classification:

260 338F

Abstract:

A repellent composition containing an oil of low volatility having a surface energy less than 27 dynes/cm. and a solid fluorinated polymer such as a polymer of a fluoroalkyl acrylate. In accord with certain embodiments of the invention, a resinous binder and/or a particulate fluorocarbon powder may be added to the repellent composition. The repellent composition may be used to prepare an ink repellent surface for a "waterless" lithoplate or as a coating on the surface of an electrographic element from which a liquid developed electrographic image is transferred.