Inventor
TROSTER HELMUT
10 patents
Patents
10 patentsUS4116923ASep 26, 1978
Dyed polyesters, process for their preparation and their use for the dyeing of plastics
HOECHST AG24 citations80
US4097450AJun 27, 1978
Perinone compounds as colorants for polyolefins
HOECHST AG11 citations73
US3939093AFeb 17, 1976
Daylight fluorescent pigments
HOECHST AG9 citations73
US4242139ADec 30, 1980
Water soluble benzoxanthene dyestuffs for fluorescent inks
HOECHST AG11 citations71
US4002630AJan 11, 1977
Novel aromatic o-hydroxyaldehydes, a process for their preparation and their utilization
HOECHST AG5 citations62
US3954810AMay 4, 1976
Process for the preparation of 4-bromonaphthalic acid anhydride
HOECHST AG3 citations60
US4046501ASep 6, 1977
Process for the dyeing and printing of synthetic polyamides
HOECHST AG2 citations57
US4082769AApr 4, 1978
Benzothioxanthenes
HOECHST AG0 citations51
US3947450AMar 30, 1976
Benzoxanthene and benzothioxanthene dicarboxylic acid imide dyestuffs and process for their manufacture
HOECHST AG1 citations51
US4007180AFeb 8, 1977
Perinone dyestuffs
HOECHST AG0 citations50