Inventor
PISTORIUS RUDOLF
DE15 patents
Patents
15 patentsUS4046652ASep 6, 1977
Process for preparing p-benzoquinone diketals
HOECHST AG13 citations73
US4322271AMar 30, 1982
Process for the preparation of N-vinyl-N-alkyl-carboxylic acid amides
HOECHST AG18 citations72
US4082809AApr 4, 1978
P-benzoquinone diketals
HOECHST AG3 citations62
US4066708AJan 3, 1978
Process for preparing chlorinated hydroquinone dimethyl ethers
HOECHST AG2 citations62
US4808343AFeb 28, 1989
Process for isolating paraffinsulfonates with a low alkali metal sulfate content and sulfuric acid from paraffin-sulfoxidation reaction mixtures without obligatory production of sodium sulfate
HOECHST AG4 citations61
US4680147AJul 14, 1987
Process for the isolation under mild conditions of paraffinsulfonate and sulfuric acid from reaction mixtures from paraffin sulfoxidation
HOECHST AG4 citations61
US4557873ADec 10, 1985
Process for isolating paraffinsulfonates and sulfuric acid of low alkali metal sulfate content from parafinsulfoxidation reaction mixtures
HOECHST AG4 citations61
US4518537AMay 21, 1985
Process for isolating paraffinsulfonate from the reaction mixture obtained on sulfoxidating paraffins
HOECHST AG2 citations61
US4404082ASep 13, 1983
Bipolar electrode for anodic processes in undivided cells
HOECHST AG2 citations61
US4288300ASep 8, 1981
Process for the manufacture of N-α-alkoxyethyl-carboxylic acid amides
HOECHST AG4 citations61
US4161614AJul 17, 1979
Process for the preparation of cyclohexane dione-(1,4)-tetramethyl diketal
HOECHST AG3 citations61
US4160109AJul 3, 1979
Cyclohexene-(1)-dione-(3,6)-tetraalkyldiketals and process
HOECHST AG2 citations61
US4057586ANov 8, 1977
Process for the manufacture of hydroquinone dimethyl ethers
HOECHST AG2 citations61
US4214104AJul 22, 1980
Use of cyclohexene-(1)-dione-(3,6)-tetraalkyl diketals
HOECHST AG1 citations51
US4204076AMay 20, 1980
Hydroquinone dimethyl ether
HOECHST AG1 citations51