Patent Leaderboard
USPTO Patent Rankings Data through Dec 31, 2025
Home › Monoazo compounds derived from meta-amino-benzoic acid anilides and acetoacetylamino-benzimidazolone

Monoazo compounds derived from meta-amino-benzoic acid anilides and acetoacetylamino-benzimidazolone

US Patent 4368155 · Granted Jan 11, 1983

Assignee

Inventors

View full patent text on Google Patents →

More Patents by These Inventors

Bisdiazonium salts of 4,4'-diamino-3,3'-dialkoxybiphenyls and a process for thei1991
4,4'-diaminodiphenyl compounds, process for their preparation and their use1991
Water-soluble aminonaphthol disazo dyestuffs, their preparation and their use1990
Process for the manufacture of a monoazo acetoacetylaminobenzimidazolone1990
Disazo compounds1988
Process for improving the application properties of disazo pigments1988
Process for preparing water-insoluble blue azo dyes on the fiber: hydroxynaphtho1987
Disazo compounds derived from acetoacetylamino-benzimidazol-2-ones1987
Amino compounds derived from 5-acetoacetylamino-benzimidazolones1987
Diaryl pigments with improved heat stability obtained by coupling bis-diazotized1987
Azo pigments obtained by diazotizing in a dipolar aprotic organic solvent1986
Process for improving the application properties of pigment yellow 131986