Imageable element comprising sulfated polymers

Details Imageable element comprising sulfated polymers Imageable element comprising sulfated polymers

2008-05-13

2008-05-13

Shewareged, Betelhem (Department: 1794)

Stock material or miscellaneous articles

Structurally defined web or sheet

Discontinuous or differential coating, impregnation or bond

C430S270100, C430S302000, C430S964000

Reexamination Certificate

active

07371454

ABSTRACT:
Sulfated polymers, imageable elements containing these polymers, and methods for preparing images useful as lithographic printing plates from these imageable elements are disclosed. The sulfate groups are attached either to aryl groups that are pendent to the polymer backbone, and/or to alkyl groups that are either pendant to the polymer backbone and/or part of the polymer backbone. The elements can be thermally imaged and developed in water or in fountain solution so that an alkaline developer is not required. They can be imaged and developed on press using fountain solution so that it is unnecessary to mount them in a separate exposure device.

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