Title: Preparation of hydrophilic lithographic printing masters

Abstract: Hydrophilic printing masters are provided comprising coating a self-supporting master substrate with a hydrophilic polymer containing carboxylic acid functionality and selectively converting this polymer in image configuration to a hydrophobic condition by heat.

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Inventors: Pacansky, Thomas J. (Penfield, NY, US)

Application Number: 769078
Filing Date: 1977-02-16
Publication_date: 1978-03-28
Assignee: Xerox Corporation (Stamford, CT)
Primary Class(es): 430/300 101/467, 427/385.5, 427/388.1, 430/270.1, 430/283.1, 430/302, 430/906, 430/945, 528/183, 528/331, 528/353, 528/363
Other Classes:
US Patent Ref:

3535148	Oct, 1970	Rauve	427/54.
3743777	Jul, 1973	Hanus et al.	427/53.
3892573	Jul, 1975	Tatsuta et al.	427/54.
3900594	Aug, 1975	Guthrie et al.	427/53.
3945318	Mar, 1976	Landsman	427/53.
3962241	Jun, 1976	Hunter	427/53.
3962513	Jun, 1976	Eames	427/53.
3964389	Jun, 1976	Peterson	427/53.

Other Refs:
Primary Examiner: Pianalto, Bernard D.
Assistant Examiner:
Attorney: Ralabate; J. J., O'Sullivan; J. P., MacKay; D. M.