Russell H Tobias

US Patent:

8430952, Apr 30, 2013

Filed:

Oct 15, 2008

Appl. No.:

12/251662

Inventors:

Raouf Botros - Centerville OH, US
Tom N. Huang - Beavercreek OH, US
Russell H. Tobias - Centerville OH, US
Eric A. Fossum - Middletown OH, US

Assignee:

Eastman Kodak Company - Rochester NY

International Classification:

C09D 11/00

US Classification:

106 3127, 523160

Abstract:

A composition for coating or printing on a substrate, comprising a liquid vehicle and a water soluble branched polyethyleneimine comprising amino groups which have been alkylated or hydroxyalkylated, wherein the branched polyethyleneimine prior to alkylation or hydroxyalkylation comprises a combination of primary, secondary, and tertiary amino groups, and wherein at least 1% of the primary amino groups of the polyethyleneimine polymer are alkylated or hydroxyalkylated with at least one alkyl or hydroxyalkyl group having at least 4 carbon atoms.

US Patent:

20040035325, Feb 26, 2004

Filed:

Aug 22, 2002

Appl. No.:

10/225944

Inventors:

Raouf Botros - Centerville OH, US
Russell Tobias - Centerville OH, US
Lutfar Rahman - Beavercreek OH, US

Assignee:

Scitex Digital Printing, Inc.

International Classification:

C08H001/00

US Classification:

106/287350

Abstract:

A substrate coating is provided for application in association with ink jet ink imaging on the substrate. The coating material, for application on a printable substrate for use with an ink jet printing system, includes a substrate property enhancing component, a surfactant, and deionized water. When the coating material is applied to the printable substrate, prints are produced which have improved print quality. The coating can result in enhanced permanence of black and specialty non-black color ink jet prints, when the substrate enhancing component is a polymer. The coating material of the present invention can also be applied to the porous substrate as a pre-print coating to reduce paper cockle and curl, when the substrate enhancing component is a polyhydroxy compound.

US Patent:

20080078304, Apr 3, 2008

Filed:

Sep 29, 2006

Appl. No.:

11/536909

Inventors:

Raouf Botros - Centerville OH, US
Tom N. Huang - Beavercreek OH, US
Russell H. Tobias - Centerville OH, US
Eric R. Fossum - Middletown OH, US

International Classification:

C09K 3/00

US Classification:

106 38

Abstract:

A composition for coating or printing on a substrate, comprising a liquid vehicle and a water soluble branched polyethyleneimine comprising amino groups which have been alkylated or hydroxyalkylated, wherein the branched polyethyleneimine prior to alkylation or hydroxyalkylation comprises a combination of primary, secondary and tertiary amino groups, and wherein at least 1% of the primary amino groups of the branched polyethyleneimine polymer are alkylated or hydroxyalkylated with at least one alkyl or hydroxyalkyl group having 4-6 carbon atoms.

US Patent:

50305387, Jul 9, 1991

Filed:

May 1, 1990

Appl. No.:

7/517271

Inventors:

Russell H. Tobias - Centerville OH
James A. Dowler - Dayton OH
Richard Sutera - Centerville OH

Assignee:

The Mead Corporation - Dayton OH

International Classification:

G03C 168
B41M 516
B41M 522

US Classification:

430138

Abstract:

A method is described for forming a transparency containing images having high color density comprising the steps of: forming an imaging sheet, said imaging sheet comprising a substrate having a layer of microcapsules on the front surface and on the back surface thereof, of microcapsules containing an internal phase which undergoes a physical change upon exposure to actinic radiation, and a color forming agent which is capable of reacting with a developer-containing resing to form a visible image thereon; simultaneously image-wise exposing said microcapsules on said front and said back surfaces of said imaging sheet to actinic radiation; assembling said exposed imaging sheet between a pair of developer sheets wherein each of said developer sheets comprises a substrate having a layer of developer-containing resin on one surface thereof, said layer of developer-containing resin on each of said developer sheets contacting the adjacent surface of said imaging sheet; subjecting said assembly to a uniform rupturing and transfer force wherein said microcapsules are ruptured in an image-wise pattern and said color-forming agent contained in said ruptured capsules is transferred to said developer-containing resin wherein an image-wise reaction between said developer-containing resin and said color-forming agent produces a visible image on each developer sheet, said visible images being mirror images of each other; separating said developer sheets from said imaging sheet; assembling said developer sheets such that said visible images are in registration, said visible images being mirror images of each other; and adhering said developer sheets, one to the other, to provide a transparency having high color density.

US Patent:

50028499, Mar 26, 1991

Filed:

Oct 2, 1989

Appl. No.:

7/416174

Inventors:

Russell H. Tobias - Centerville OH
David A. Hutchings - Centerville OH
Kelli J. Borello - Kettering OH

Assignee:

The Mead Corporation - Dayton OH

International Classification:

G03C 554
G03C 168

US Classification:

430138

Abstract:

A receiver sheet including a developer material capable of forming visible images upon reaction with a color precursor; and an amine salt capable of reacting with a photohardenable composition by a Michael addition reaction, said amine salt being associated with said receiver sheet such that said amine salt does not react with said photohardenable composition until after said color precursor has been transferred to said receiver sheet and an imaging system including said receiver sheet is provided.