Lithographic base with a modified dextran or pullulan hydrophili

Details Lithographic base with a modified dextran or pullulan hydrophili Lithographic base with a modified dextran or pullulan hydrophili

1992-05-20

1995-04-04

Burr, Edgar S.

Printing

Planographic

Lithographic printing plates

101456, 101454, 101460, B41N 108, B41N 300

Patent

active

054027250

ABSTRACT:
This invention provides a lithographic base comprising a support provided with a hardened hydrophilic layer wherein the hardened hydrophilic layer comprises a dextran or pullulan modified with a group containing amine or amide functions having at least one free hydrogen.

REFERENCES:
patent: 3559579 (1971-02-01), Perkins
patent: 4046946 (1977-09-01), Shaw
patent: 4095525 (1978-06-01), Tsukada et al.
patent: 4097647 (1978-06-01), Shaw
patent: 4563410 (1986-01-01), DeJaeger et al.
patent: 4731119 (1988-03-01), Toyama et al.
patent: 4879193 (1989-11-01), Takaya et al.
patent: 4996135 (1991-02-01), Toyama et al.

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