Process for bromine surface treatment of photosensitive elastome

Details Process for bromine surface treatment of photosensitive elastome Process for bromine surface treatment of photosensitive elastome

1982-05-07

1983-08-23

Louie, Jr., Won H.

Radiation imagery chemistry: process, composition, or product th

Imaging affecting physical property of radiation sensitive...

Making printing plates

430309, 430328, 430331, 430286, 430271, G03C 500

Patent

active

044004591

ABSTRACT:
Process for providing improved solvent resistant surfaces of relief flexographic printing plates prepared by imagewise exposure and liquid development of the unexposed areas of a layer of a photosensitive elastomeric composition comprising a polymer of a conjugated diolefin hydrocarbon, and a monomeric compound wherein, after drying, the developed surface is in either order (1) postexposed to actinic radiation, and (2) contacted for about 15 seconds to 40 minutes with an aqueous treatment solution of an alkali monopersulfate, e.g., 2KHSO.sub.5.KHSO.sub.4.K.sub.2 SO.sub.4 and a bromide salt, e.g., potassium bromide.

REFERENCES:
patent: 3051603 (1962-08-01), Michaels
patent: 3968316 (1976-07-01), Jyo et al.

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