← Back to Patent Explorer
EP0431423A2 Expired / Lapsed EP ⏱️ 0.0 years remaining

Basic polycondensation products as well as their use as dye additives

Assignee: Bayer AG
•
Filing: 1990-11-24
•
Granted: —
•
Expires: 2010-11-24
📄 Original PDF 🌐 Google Patents 🔄 Sync Now

Abstract

Abstract Translated from German Umsetzungsprodukte von mehrfunktionellen Aminen mit Cyanamiden in Gegenwart von Ammoniumsalzen sind leicht in Wasser bzw. wäßrigen Säuren löslich. Reaction products of polyfunctional amines with cyanamides in the presence of ammonium salts are easily soluble in water or aqueous acids. Die Lösungen sind frei von ungelösten Nebenprodukten und eignen sich deshalb hervorragend zur Echtheitsverbesserung von Färbungen mit substantiven Farbstoffen. The solutions are free of undissolved by-products and are therefore ideal for improving the authenticity of dyeings with substantive dyes.

Inventors

  • 👤 Udo Dr. Hendricks

Bibliographic Details

Application Number —
Jurisdiction EP
Data Source google_patents
Last Synchronized 2026-10-23 15:02
CPC Classifications
C; C08; C08G; C08G73/00; D; D06; D06P; D06P1/00; D06P1/44; D06P1/52; D06P1/5264; D06P1/5278

Claims Analysis

Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.

References Cited (Backward Citations)

No citation records indexed.

USPTO Annuity & Maintenance Windows

Maintenance schedule is calculated for granted US utility patents.

Assigned Categories & Tags

No categories assigned to this patent yet.

Assign Category Tag