Lithographic printing plates with dispersed rubber additives

Details Lithographic printing plates with dispersed rubber additives Lithographic printing plates with dispersed rubber additives

1995-09-21

1997-04-01

Hamilton, Cynthia

Radiation imagery chemistry: process, composition, or product th

Imaging affecting physical property of radiation sensitive...

Making printing plates

4302811, 4302861, 430309, 101467, 1014631, 1014501, 101466, 101451, 101465, G03F 730

Patent

active

056164491

ABSTRACT:
The present invention discloses the use of rubber and surfactant to enhance the durability and resolution of on-press developable lithographic printing plates. The rubber is preferably incorporated into a photoresist as discrete particulate rubber. To ensure a uniform and stable dispersion, the rubber is suspended in the photoresist by means of a surfactant having an HLB approximately between 7.0 and 18.0.

REFERENCES:
patent: 3701748 (1972-10-01), Kroekel
patent: 3772241 (1973-11-01), Kroekel
patent: 4273851 (1981-06-01), Muzyczko
patent: 4408532 (1983-10-01), Incremona
patent: 5258263 (1993-11-01), Cheema et al.
patent: 5368973 (1994-11-01), Hasegawa
patent: 5395734 (1995-03-01), Vogel et al.
Grant & Hack's Chemical Dictionary. Fifth Ed. Ed. Grant, Roger & Claire Grant; McGraw-Hill, New York, (1987) pp. 192 and 447.
"Particulate", Grant & Hackh's Chemical Dictionary, Fifth ed., McGraw-Hill Book Company, New York, NY, 1987, p. 424.
Grant et al, Grant and Hackh's Chemical Dictionary, 5th ed, McGraw-Hill Book Co, New York, N.Y. 1987, pp. 511 and 201.

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