Inventor
SCHWERIN SIEGFRIED
DE4 patents
Patents
4 patentsUS4515639AMay 7, 1985
Azo pigment formulations
HOECHST AG20 citations75
US5266682ANov 30, 1993
Nitrogen-containing surface-active agents
HOECHST AG5 citations61
US4939238AJul 3, 1990
Nitrogen-containing condensation products based on unmodified or modified natural resins, process for the preparation thereof and the use thereof
HOECHST AG4 citations61
US4048152ASep 13, 1977
Modified form of disazo pigment CI 20040
HOECHST AG2 citations61