Method for preparing master plate useful for making...

Details Method for preparing master plate useful for making... Method for preparing master plate useful for making...

2005-02-01

2005-02-01

Gilliam, Barbara L. (Department: 1752)

Radiation imagery chemistry: process, composition, or product th

Imaging affecting physical property of radiation sensitive...

Making printing plates

C430S272100, C430S273100, C430S303000

Reexamination Certificate

active

06849386

ABSTRACT:
An object of the present invention is to provide a method for manufacturing such a dry lithographic printing master plate that has eliminated uneven plate performance and more specifically that provides a stable adhesiveness between a heat-sensitive layer and a silicone rubber layer as well as a high aging stability of a coating solution. Provided is a method for preparing a master plate useful for making a dry lithographic printing plate comprising at least a heat-sensitive layer and a silicone rubber layer which are stacked in this order on a substrate, said method comprising the steps of: (1) dissolving a diorgano-polysiloxane and a curing catalyst in a solvent; (2) dissolving a cross-linking agent in a solvent; (3) mixing the solution obtained in the step (1) with the solution obtained in the step (2); and (4) applying the mixture obtained in the step (3) over the heat-sensitive layer to thereby form the silicone rubber layer.

REFERENCES:
patent: 5811210 (1998-09-01), Kawamura et al.
patent: 50-158405 (1975-12-01), None
patent: 2000-301849 (2000-10-01), None

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