Inventor

PIESCH STEFFEN

DE23 patents

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

PIESCH STEFFEN

CASSELLA FARBWERKE MAINKUR AG

Cross-linkable and cross linked macromolecular compositions wherein cross-linking is by structural bridges of the formula --NRx --CH═N--CO-- and their preparation

Bonded structures of textile materials

Preparation of electrolyte-free aminoplast resins

Melamine resins: process for their manufacture and the compression moulding compositions produced from the melamine resins

Melamine resins: process for their manufacture and the compression moulding compositions produced from the melamine resins

Melamine resins, a process for their preparation and their use and molding compositions produced from the resins

Water soluble, crosslinkable polymer compositions, their preparation and use

Diethanolamine salt of sulphamic acid as a curing accelerator for aminoplast resins

Acrylate-modified melamine resin which is stable on storage, its preparation and its use

Modified aminoplast compositions

Aminoplast curing agents

Modified aminoplast, its preparation and its use

Latent curing agent for thermosetting aminoplast resins, its manufacture and its use

Sulfonyl compounds

Polymers based on N-formyl-N&#39;-acryloyl-methylenediamines

Pyrazino-carbazoles, process for the production thereof and pharmaceutical agents

Sulphonamide derivatives and their preparation and use

Sulphur dyestuffs of the carbazole series

Process for the preparation of derivatives of 3-(4-hydroxy-anilino)carbazole

CASSELLA AG

N-substituted ε-caprolactams

Melamine resin, process for its manufacture and its use for the manufacture of coated wood-based materials and laminates

KOENIG & BAUER AG

Delivery device and method for operating a delivery device

BOSCH GMBH ROBERT

Arrangement for correcting registration in a multi-color rotary sheet printing press

Polymers based on N-formyl-N'-acryloyl-methylenediamines