Lithographic printing plate precursor and production method...

Details Lithographic printing plate precursor and production method... Lithographic printing plate precursor and production method...

2005-05-17

2005-05-17

Hamilton, Cynthia (Department: 1752)

Radiation imagery chemistry: process, composition, or product th

Imaging affecting physical property of radiation sensitive...

Radiation sensitive composition or product or process of making

C430S273100, C430S156000, C430S160000, C430S162000, C430S165000, C430S163000, C430S912000, C430S914000, C430S944000, C430S945000, C430S908000, C430S906000, C430S302000

Reexamination Certificate

active

06893795

ABSTRACT:
A positive working lithographic printing plate precursor comprising a lower layer containing a water-insoluble and alkali-soluble resin, and an upper heat-sensitive layer containing a water-insoluble and alkali-soluble resin and an infrared absorbing dye and increasing the solubility in an alkaline aqueous solution by heating, provided in this order on a hydrophilic support, and (a) the upper heat-sensitive layer containing at least two kinds of surface active agents, or (b) the lower layer and upper heat-sensitive layer each containing a surface active agent different from each other.

REFERENCES:
patent: 20020136979 (2002-09-01), Miyake et al.
patent: 230995 (1987-08-01), None
patent: 950517 (1999-10-01), None
patent: 1072432 (2001-01-01), None
patent: 1211065 (2002-06-01), None

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