Patent · US Expired

Mixtures of blue disperse monoazo dyestuffs

US4851012A · kind A · utility

2Cited by

7References

10Claims

0Family size

Assignee

Cassella Aktiengesellschaft · DE

Inventors

Ulrich Buhler · Alzenau, DE
Hubert Kruse · Kelkheim, DE
Reinhard Kuhn · Frankfurt am Main, DE
Margareta Boos · Hattersheim, DE

Key dates

Filing date	Feb 1, 1988
Grant date	Jul 25, 1989
Priority date	—
Expiry date	Feb 1, 2008

Classification

Technology area (CPC Y)Emerging Cross-Sectional Technologies
CPC primaryY10S8/924
WIPO fieldBasic materials chemistry
WIPO sectorChemistry

Abstract

A mixture of monoazo dyestuffs which contains one or more dyestuffs of the formula I ##STR1## and one or more dyestuffs of the formula II ##STR2## wherein R.sup.1 and R.sup.2 independently of one another each denote linear or branched alkyl with 1 to 6 carbon atoms, R denotes linear or branched alkyl with 1 to 5 carbon atoms and Hal denotes chloro or bromo, are outstandingly suitable for dyeing and printing hydrophobic materials.

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