Patent · US Expired

Process for coloring organic solvents, mineral oil products, waxes, plastics and surface coatings with cyano-nitro-amino-azo dyes

US4430090A · kind A · utility

6Cited by

0References

13Claims

0Family size

Assignee

Cassella Aktiengesellschaft · DE

Inventors

Ulrich Buhler · Alzenau, DE
Reinhard Hahnle
Joachim Ribka · Offenbach am Main, DE
Helmut Richter

Key dates

Filing date	Aug 19, 1982
Grant date	Feb 7, 1984
Priority date	—
Expiry date	Aug 19, 2002

Classification

Technology area (CPC Y)Emerging Cross-Sectional Technologies
CPC primaryY10S534/01
WIPO fieldBasic materials chemistry
WIPO sectorChemistry

Abstract

Dyestuffs of the formula ##STR1## are used for coloring organic solvents, mineral oil products, waxes, plastics and surface coatings, wherein R is alkyl having 1 to 7 carbon atoms, R.sup.1 is alkyl having 1 to 8 carbon atoms or alkenyl having 3 or 4 carbon atoms, and R.sup.2 is hydrogen, alkyl having 1 to 8 carbon atoms or alkenyl having 3 or 4 carbon atoms.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.