Imageable members with improved chemical resistance

Details Imageable members with improved chemical resistance Imageable members with improved chemical resistance

2007-05-29

2007-05-29

Schilling, Richard (Department: 1752)

Radiation imagery chemistry: process, composition, or product th

Imaged product

Multilayer

C430S270100, C430S271100, C430S302000, C430S326000, C430S905000, C430S910000, C430S964000

Reexamination Certificate

active

11393156

ABSTRACT:
Single-layer and multilayer imageable elements have a substrate and at least one imageable layer and can be used to prepare positive-working lithographic printing plates. The imageable elements also include a radiation absorbing compound and a solvent-resistant polymer binder comprising an —N(R)—C(═X)—N(R′)—S(═O)2— moiety that is attached to the polymer backbone, wherein X is O or S, R and R′ are independently hydrogen, halo, or an alkyl group having 1 to 6 carbon atoms. This solvent-resistant polymer binder is located in the imageable layer closest to the substrate and provides improved chemical resistance.

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JP abstract 11-119419 (Apr. 30, 1999), Kawachi Ikuo.
U.S. Appl. No. 11/337,778 (D-91856/JLT), filed Jan. 23, 2006, titledMultilayer Imageable Element Containing Sulfonamido Resin,by Saraiya et al.

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