Inventor
PRINTZEN HELMUT
DE5 patents
Patents
5 patentsUS4620879ANov 4, 1986
Iron oxide yellow pigments having a low silking effect and a process for production thereof
BAYER AG19 citations75
US5185141AFeb 9, 1993
Process for the production of iron oxide yellow pigments
BAYER AG10 citations71
US5032180AJul 16, 1991
Process for the production of iron oxide yellow pigments
BAYER AG8 citations71
US4698100AOct 6, 1987
Iron oxide yellow pigments having a low silking effect and a process for production thereof
BAYER AG9 citations71
US5076848ADec 31, 1991
Process for the preparation of iron yellow pigments
BAYER AG4 citations61