Inventor

SCHELER SIEGFRIED

DE17 patents

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

SCHELER SIEGFRIED

HOECHST AG

Two-component diazotype material with ultraviolet light-absorbing dye salt of a benzothiazole

Diazotype materials with 2-hydroxy-naphthalene having sulfonamide substituent as coupler

Radiation-sensitive compounds, radiation-sensitive mixture prepared therewith and copying material

Light-sensitive diazotype material with 2-hydroxy-3-naphthoic acid amides having 6-sulfonic acid amide substitution

Light-sensitive mixture containing an 0-naphthoquinonediazide-sulfonic acid ester and recording material produced therewith wherein the 0-naphthoquinone diazides are partial esters

(1,2-naphthoquinone 2-diazide) sulfonic acid esters, radiation-sensitive mixture prepared therewith and radiation-sensitive recording material

Composition containing naphthoquinone diazide sulfonic acid mixed esters and radiation-sensitive recording material prepared therewith

Two-component diazotype material with diazonium salt with anion of benzene or toluene sulfonate

2-Hydroxy-3-naphthoic acid amides

Process for preparing substituted 1,2-naphthoquinone-(2)-diazide-4-sulfonic acid esters and their use in a radiation-sensitive mixture

Two-component diazotype material

Recording material containing diazo compounds and process for the manufacture thereof

Process for preparing 7-hydroxy-1,2-naphthoquinone-2-diazide-4-sulfonic acid or salts thereof

Substituted 1,2-naphthoquinone-2-diazide-4-sulfonic acids and processes for their preparation and use

Radiation-sensitive ester and process for its preparation

Diazotype material

AGFA GEVAERT AG

2-acylamino-9-arylacridines, process for their preparation and photosensitive mixtures containing them