Inventor
DITZER REINER
DE3 patents
Patents
3 patentsUS4006130AFeb 1, 1977
Triaszo dyestuffs containing etherified or esterified hydroxyl groups
BAYER AG5 citations54
US4235773ANov 25, 1980
Trisazo dyestuffs containing a naphtholamino sulfonic acid component and a phenylcarbonylamino-phenyl component
BAYER AG4 citations49
US5840902ANov 24, 1998
Process for the preparation of beta-hydroxyalkypicolinium salts
BAYER AG0 citations38