Patent EP0021372A2 successfully refreshed from Google Patents.
← Back to Patent Explorer
EP0021372A2 Expired / Lapsed EP ⏱️ 0.0 years remaining

Copper complexes of disazo reactive dyestuffs

Assignee: Bayer AG
•
Filing: 1980-06-21
•
Granted: —
•
Expires: 2000-06-21
📄 Original PDF 🌐 Google Patents 🔄 Sync Now

Abstract

Abstract Translated from German Kupferkomplexe von Disazofarbstoffen der Formel worin R, Z, K, und A die in der Beschreibung angegebene Bedeutung haben und deren Verwendung zum Färben und Bedrucken von Hydroxyl-oder Amidgruppen enthaltenden Materialien, wie Textilfasern, Fäden und Geweben aus Wolle, Seide synthetischen Polyamid- und Polyurethanfasern und zum waschechten Färben und Bedrucken von nativer oder regenerierter Cellulose. Copper complexes of disazo dyes of the formula wherein R, Z, K, and A have the meaning given in the description and their use for dyeing and printing hydroxyl or amide group-containing materials, such as textile fibers, threads and fabrics made of wool, silk, synthetic polyamide and polyurethane fibers, and for washable dyeing and printing native or regenerated cellulose.

Inventors

  • 👤 Horst Dr. Jäger

Bibliographic Details

Application Number —
Jurisdiction EP
Data Source google_patents
Last Synchronized 2026-11-06 15:31
CPC Classifications
C; C09; C09B; C09B62/00; C09B62/02; C09B62/022; C09B62/026; C09B62/032

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