Paul Kitson

US Patent:

6830862, Dec 14, 2004

Filed:

Feb 28, 2002

Appl. No.:

10/087891

Inventors:

Paul Kitson - Evans CO
Jayanti Patel - Woodcliff Lake NJ
Jianbing Huang - Trumball CT
Paul West - Fort Collins CO
Ken-ichi Shimazu - Briarcliff Manor NY

Assignee:

Kodak Polychrome Graphics, LLC - Norwalk CT

International Classification:

G03F 7023

US Classification:

430156, 430166, 4302701, 4302711, 4302731, 430302

Abstract:

A positive working, multi-layer thermally imageable element is disclosed. The element comprises a substrate, an underlayer, and a top layer. The top layer comprises a crosslinked polymeric material. The element may be thermally imaged and developed to form a lithographic printing plate.

US Patent:

6852464, Feb 8, 2005

Filed:

Jan 10, 2002

Appl. No.:

10/044261

Inventors:

Paul Kitson - Evans CO, US

Assignee:

Kodak Polychrome Graphics, LLC - Norwalk CT

International Classification:

G03F007/023
G03F007/30

US Classification:

430168, 430166, 430302, 430330

Abstract:

Methods of manufacturing multi-layer thermally imageable elements useful as lithographic printing plate precursors are disclosed. The elements comprise a substrate, an underlayer, and an imageable layer. The imageable layer comprises a first polymeric material and o-diazonaphthoquinone containing material. After the underlayer has been coated over the substrate and the imageable layer has been coated over the underlayer, the element is heated to between about 130 C. and about 200 C. for a time sufficient to decrease the sensitivity of the imageable element to the white light.

US Patent:

6893783, May 17, 2005

Filed:

Oct 8, 2003

Appl. No.:

10/681701

Inventors:

Paul Kitson - Evans CO, US
Kevin B. Ray - Fort Collins CO, US
Mathias Jarek - Northeim, DE
S. Peter Pappas - Juno Beach FL, US

Assignee:

Kodak Polychrome Graphics LLD - Norwalk CT

International Classification:

G03F007/039
G03F007/11
G03F007/30
G03F007/40
G03F007/14

US Classification:

430 15, 4302711, 430302, 430309, 430964

Abstract:

Multilayer, positive working, thermally imageable elements are disclosed. The elements produce bakeable lithographic printing plates that are resistant to press chemistries. The elements have a substrate, an underlayer, and a top layer. The underlayer comprises a resin or resins having activated methylol and/or activated alkylated methylol groups, such as a resole resin, and a polymeric material that comprises, in polymerized form, (a) methacrylic acid; (b) N-phenylmaleimide, N-cyclohexylmaleimide, N-benzylmaleimide, or a mixture thereof; and (c) one or more monomers of the structure:.

US Patent:

6969570, Nov 29, 2005

Filed:

Oct 26, 2004

Appl. No.:

10/973799

Inventors:

Paul Kitson - Evans CO, US

Assignee:

Kodak Polychrome Graphics, LLC - Norwalk CT

International Classification:

G03F007/039
G03F007/11
G03F007/30

US Classification:

430 15, 430 17, 430 18, 4302701, 4302711, 430302, 430330, 430905, 430909, 430910, 430964

Abstract:

Thermally imageable elements useful as lithographic printing plate precursors are disclosed. The elements comprise a substrate, an underlayer over the substrate, and a top layer over the underlayer. The top layer comprises a co-polymer that comprises, in polymerized form, norbornene or a norbornene derivative. The resulting lithographic printing plates have good resistance to pressroom chemicals.

US Patent:

7049045, May 23, 2006

Filed:

Aug 14, 2003

Appl. No.:

10/641888

Inventors:

Paul Kitson - Evans CO, US
Kevin B. Ray - Fort Collins CO, US
S. Peter Pappas - Juno Beach FL, US

Assignee:

Kodak Polychrome Graphics LLC - Norwalk CT

International Classification:

G03F 7/11

US Classification:

4302701, 4302731, 430302, 430306, 430309, 430401, 430434, 430494, 430944, 430945

Abstract:

Multilayer, positive working, thermally imageable, bakeable imageable elements are disclosed. The elements have a substrate, an underlayer, and a top layer. The underlayer comprises a resin or resins having activated methylol and/or activated alkylated methylol groups, such as a resole resin, and a polymeric material that comprises, in polymerized form about 5 mol % to about 30 mol % of methacrylic acid; about 20 mol % to about 75 mol % of N-phenylmaleimide, N-cyclohexylmaleimide, N-benzylmaleimide, or a mixture thereof; optionally, about 5 mol % to about 50 mol % of methacrylamide; and about 3 mol % to about 50 mol % of a compound represented by the formula:CHC(R)C(O)NHCHOR, in which Ris Cto Calkyl, phenyl, Cto Csubstituted phenyl, Cto Caralkyl, or Si(CH); and Ris H or methyl. The elements produce bakeable lithographic printing plates that are resistant to press chemistries.

US Patent:

20030148227, Aug 7, 2003

Filed:

Jan 24, 2002

Appl. No.:

10/057518

Inventors:

Kevin Ray - Fort Collins CO, US
Paul Kitson - Evans CO, US

International Classification:

G03C005/00

US Classification:

430/322000, 430/313000, 430/330000, 430/954000, 430/273100

Abstract:

Negative-working, water-developable imageable elements, useful as printing plate precursors, and methods for their use, are disclosed. The elements can be imaged with ultraviolet radiation, with infrared radiation, or with heat. The elements contain an imageable composition that contains a latent Brönsted acid, a water-soluble or water-dispersible binder, and an acid-activated cross-linking agent.