Radiation imagery chemistry: process – composition – or product th – Diazo reproduction – process – composition – or product – Composition or product which contains radiation sensitive...
Patent
1995-10-31
1998-05-19
Young, Christopher G.
Radiation imagery chemistry: process, composition, or product th
Diazo reproduction, process, composition, or product
Composition or product which contains radiation sensitive...
430168, 430169, 430300, 430325, G03F 7021, G03F 711
Patent
active
057534047
ABSTRACT:
A photosensitive recording material is described which has a layer base, a negative-working photosensitive layer containing a diazonium salt and a water-insoluble polymeric binder which is soluble or swellable in aqueous alkaline solutions, and a discontinuous top layer which forms a rough surface and which is composed of particles of a water-insoluble polymer which is dispersible in water in the presence of anionic or anionic
onionic dispersants and which has a content of free acid groups or acid groups neutralized by salt formation of less than 0.8 mmol/g, the mean height of the particles being 2 to 6 .mu.m, the maximum height less than 10 .mu.m, the mean horizontal diameter less than 40 .mu.m, the maximum diameter less than 80 .mu.m and the number of particles being 100 to 10,000 per cm.sup.2. The material is suitable for the production of planographic printing plates and requires only short vacuum times in a vacuum-operated copying frame. The material can be developed without residue after exposure, the rough surface remaining intact at the image areas.
REFERENCES:
patent: 4216289 (1980-08-01), Oda et al.
patent: 4288526 (1981-09-01), Oda et al.
patent: 4842982 (1989-06-01), Seibel et al.
patent: 5162193 (1992-11-01), Murray et al.
Elsaesser Andreas
Frass Werner
Gaschler Otfried
Konrad Klaus-Peter
Agfa-Gevaert AG
Young Christopher G.
LandOfFree
Photosensitive recording material containing negative working di does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Photosensitive recording material containing negative working di, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Photosensitive recording material containing negative working di will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-1851486