Inventor

FRASS WERNER

DE31 patents

⚠️ This page may combine multiple inventors who share the name “FRASS WERNER”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.

FRASS WERNER

HOECHST AG

Photopolymerizable mixture and recording material prepared therefrom, having a photoinitiating set of compounds which give increased absorption below 450 nm

Polyvinylmethylphosphinic acid, process for its manufacture and use

Hydrophilic coating of salt-type phosphorus or sulfur polymer on aluminum support materials for offset printing plates and process for manufacture and use with light sensitive layer thereon

Photopolymerizable mixture, and a recording material produced therefrom

Photopolymerizable mixture and recording material produced therefrom

Developer for preparing printing forms and process therefor

Light-curable mixture and light-sensitive copying material made therewith

Process for the electrochemical roughening of aluminum for use as printing plate supports, in an aqueous mixed electrolyte

Radiation-sensitive positive working composition and copying material

Process for the selective additive correction of voids in copying layers

Process for reducing halations using lubricant in the course of irradiating and developing reproduction layers used for preparing printing plates

Process for electrochemically modifying electrochemically roughened aluminum support materials and the use of these materials in the manufacture of offset printing plates

Photopolymerizable composition comprising (meth)acrylates with photooxidizable groups and a recording material produced therefrom

Photopolymerizable mixture, and a recording material produced therefrom

Process for the production of relief forms with a developing solvent comprising phenol ether

Process for developing exposed diazo negative-working reproduction layers using aqueous developer having salt of aromatic carboxylic acid with adjacent group substituent

Positive-working photosensitive mixture and photolithographic copying material produced therefrom with o-quinone dialide sulfonyl ester and azo coupler

Process for producing relief copies in light hardenable materials with ultrasonic treatment

Light-sensitive copying compositions and photoinitiators contained therein

Photopolymerizable composition comprising (meth)acrylates with photooxidizable groups, and a recording material produced therefrom

Developing solvent for layers which are crosslinkable by photopolymerization and process for the production of relief forms

Process for desensitizing diazo lithographic printing forms using desensitizing solution with light absorbing compound

Negative-working photosensitive coating solution containing photohardenable diazo compound, polymeric binder and four component solvent

AGFA GEVAERT AG

Matted, radiation-sensitive recording material and printing plate

Thermal process for applying hydrophilic layers to hydrophobic substrates for offset printing plates

Process for developing irradiated radiation-sensitive recording materials

Photopolymerizable recording material

Developer for irradiated radiation-sensitive recording materials

Process for the production of a lithographic printing plate through selective transfer

Photosensitive recording material containing negative working diazonium salt layer and discontinuous top layer

Electrophotographic recording material for the production of printing plates