Inventor
ULRICH HENRI
US21 patents
Patents
21 patentsUS4039580AAug 2, 1977
Process for preparing di(aminophenyl)methanes
UPJOHN CO36 citations91
US4039581AAug 2, 1977
Process for the preparation of di(amino phenyl)methanes
UPJOHN CO45 citations91
US3983087ASep 28, 1976
Novel process of reclaiming polyurethane foam
UPJOHN CO36 citations90
US4138398AFeb 6, 1979
Bis-cyclic ureas
UPJOHN CO22 citations81
US4123466AOct 31, 1978
Process for nitrating aromatic hydrocarbons
UPJOHN CO17 citations73
US4112014ASep 5, 1978
O,O'-Bis(hydroxyalkyl) N,N-di(lower-alkyl)aminomethane phosphonates
UPJOHN CO7 citations73
US4010209AMar 1, 1977
Process
UPJOHN CO13 citations73
US4092343AMay 30, 1978
Polymethylene polyphenyl polyisocyanate
UPJOHN CO7 citations72
US4008275AFeb 15, 1977
Process for isolating 4,4'-diaminodiphenylmethane
UPJOHN CO7 citations72
US3947337AMar 30, 1976
α,ω-Diarylpolyene photosensitizers for sulfonylazide polymers
UPJOHN CO7 citations68
US4217436AAug 12, 1980
Polyurethane forming compositions
UPJOHN CO6 citations62
US4202946AMay 13, 1980
Fire retardant polyurethanes prepared from hydroxy substituted aminomethanephosphonates
UPJOHN CO5 citations62
US4202779AMay 13, 1980
Mixture of bis(2-hydroxyalkyl) N,N-di(lower alkyl)aminomethanephosphonates with polyols
UPJOHN CO5 citations62
US4190599AFeb 26, 1980
Amide-containing diisocyanates and preparation thereof
UPJOHN CO3 citations62
US4173602ANov 6, 1979
Process for preparing spirocyclic phosphorus compounds
UPJOHN CO2 citations62
US4154931AMay 15, 1979
Process for the preparation of cyclic ureas
UPJOHN CO5 citations62
US4051166ASep 27, 1977
Araliphatic diisocyanates
UPJOHN CO3 citations62
US3951922AApr 20, 1976
Process for preparing polyimides from derivatives of phthalic anhydride
UPJOHN CO3 citations62
US4029705AJun 14, 1977
Purification process for MDA
UPJOHN CO2 citations61
US4339381AJul 13, 1982
1,3-Alkylene-diazetidine-2,4-diones
UPJOHN CO1 citations51
US4028361AJun 7, 1977
Process for the purification of MDA
UPJOHN CO0 citations51