Method for making a negative working lithographic printing plate
US4483758A · kind A · utility
6Cited by
3References
7Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jan 30, 1984 |
| Grant date | Nov 20, 1984 |
| Priority date | — |
| Expiry date | Jan 30, 2004 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG03F7/0125
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
An O-epoxyalklyated tetrakis (hydroxyphenyl) alkane resin or the esterified reaction product of about one equivalent thereof with less than one equivalent of an ethylentically unsaturated organic acid can be combined with an aqueous alkali- and radiation sensitive, negative acting substance which when coated on a substrate forms a radiation sensitive negative working element.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.