Inventor

IMMEL OTTO

41 patents

Patents

41 patents

US5763350AJun 9, 1998

Catalysts for removing sulfur compounds from industrial gases, a process for their production and their use

BAYER AG22 citations92

US5338861AAug 16, 1994

Process for the preparation of N-substituted lactams

BAYER AG30 citations92

US5302774AApr 12, 1994

Process for the production of bisphenols

BAYER AG39 citations92

US5023226AJun 11, 1991

Ruthenium supported catalyst, its preparation and its use in the preparation of substituted or unsubstituted cyclohexylamine and substituted or unsubstituted dicyclohexylamine

BAYER AG22 citations92

US4122290AOct 24, 1978

Process for the preparation of trimethylolalkanes

BAYER AG39 citations92

US5304525AApr 19, 1994

Catalyst for the preparation of aniline

BAYER AG23 citations90

US4952549AAug 28, 1990

Ruthenium catalyst, process for its preparation and process for the preparation of a mixture of cyclohexylamine and dicyclohexylamine using the ruthenium catalyst

BAYER AG19 citations82

US4943549AJul 24, 1990

Supported ruthenium catalyst, its preparation and its use in the preparation of optionally substituted cyclohexylamine and optionally substituted dicyclohexylamine

BAYER AG20 citations81

US4247485AJan 27, 1981

Process for the preparation of a mixture of cyclohexylamine and dicyclohexylamine using a supported noble metal catalyst

BAYER AG14 citations74

US5300706AApr 5, 1994

Process for the preparation of d,1-menthol

BAYER AG16 citations74

US5196592AMar 23, 1993

Process for the preparation of diphenylamines

BAYER AG9 citations74

US5097071AMar 17, 1992

Supported copper catalyst, process for its preparation and process for the preparation of n-alkylated aromatic amines using this copper catalyst

BAYER AG14 citations74

US4902661AFeb 20, 1990

Rhodium catalysts, process for their preparation and process for the preparation of substituted or unsubstituted diphenylamine by using the rhodium catalysts

BAYER AG8 citations74

US4233247ANov 11, 1980

Process for the preparation of 2,2-dimethylolalkanals

BAYER AG10 citations74

US3966712AJun 29, 1976

Process for the purification of caprolactam

BAYER AG15 citations74

US5583251ADec 10, 1996

Process for the production of isocyanates and for the production of light-colored foams therefrom

BAYER AG6 citations73

US4729977AMar 8, 1988

Supported catalyst, process for its preparation and its use for the preparation of hydroxydiphenyl

BAYER AG11 citations73

US4181810AJan 1, 1980

Process for the preparation of propane-1,3-diols, disubstituted in the 2-position

BAYER AG17 citations73

US6140382AOct 31, 2000

Process for the preparation of isocyanates or isocyanate mixtures useful for the preparation of polyurethane foams

BAYER AG15 citations72

US4137263AJan 30, 1979

Process for the evaporation of cyclohexanone oxime

BAYER AG6 citations72

US4155876AMay 22, 1979

Catalyst regeneration of boric acid on carbon catalysts

BAYER AG7 citations71

US4148792AApr 10, 1979

Purification of caprolactam

BAYER AG16 citations71

US6111140AAug 29, 2000

Ru--Pd halogen-free catalyzers and method for producing cycloaliphatic amines

BAYER AG4 citations63

US5434310AJul 18, 1995

Process for the preparation of acylbenzenes

BAYER AG3 citations63

US5386060AJan 31, 1995

Palladium catalyst and its use in the preparation of a mixture of optionally substituted cyclohexylamine and optionally substituted dicyclohexylamine

BAYER AG5 citations63

US5371294ADec 6, 1994

Process for the preparation of a mixture of cyclohexylamine and dicyclohexylamine

BAYER AG3 citations63

US5248840ASep 28, 1993

Process for the preparation of hydrooxydiphenyls

BAYER AG6 citations63

US5245082ASep 14, 1993

Process for the production of di-(4-aminocyclohexyl)-methane containing 15 to 25% by weight of the trans-trans isomer

BAYER AG4 citations63

US5166440ANov 24, 1992

Process for the preparation of n-alkylated aromatic amines

BAYER AG5 citations63

US3948888AApr 6, 1976

Process for removing boric acid from lactams

BAYER AG3 citations63

US4097540AJun 27, 1978

Process for the preparation of 2-alkyl-2-methylpropane-1,3-diol

BAYER AG5 citations62

US5174985ADec 29, 1992

Process for the oxidation of water-insoluble organic compounds

BAYER AG3 citations61

US4141896AFeb 27, 1979

Process for the producing ε-caprolactam from the distillation of cyclohexanone oxime

BAYER AG4 citations58

US5268509ADec 7, 1993

Process for the preparation of an iron catalyst and a process for the preparation of primary amines by the hydrogenation of nitriles using said iron catalyst

BAYER AG2 citations57

US4157986AJun 12, 1979

Abrasion resistant catalyst

BAYER AG0 citations50

US4028347AJun 7, 1977

Method for processing lactam residues which contain boric acid

BAYER AG0 citations42

IMMEL OTTO

Patents

Catalysts for removing sulfur compounds from industrial gases, a process for their production and their use

Process for the preparation of N-substituted lactams

Process for the production of bisphenols

Ruthenium supported catalyst, its preparation and its use in the preparation of substituted or unsubstituted cyclohexylamine and substituted or unsubstituted dicyclohexylamine

Process for the preparation of trimethylolalkanes

Catalyst for the preparation of aniline

Ruthenium catalyst, process for its preparation and process for the preparation of a mixture of cyclohexylamine and dicyclohexylamine using the ruthenium catalyst

Supported ruthenium catalyst, its preparation and its use in the preparation of optionally substituted cyclohexylamine and optionally substituted dicyclohexylamine

Process for the preparation of 2,2-dimethylolalkanals

Process for the preparation of trimethylolpropane

Process for removing sulfur compounds from industrial gases

Process for preparing diphenylamines

Process for the preparation of diphenylamines

Process for the preparation of a mixture of cyclohexylamine and dicyclohexylamine using a supported noble metal catalyst

Process for the preparation of d,1-menthol

Process for the preparation of diphenylamines

Supported copper catalyst, process for its preparation and process for the preparation of n-alkylated aromatic amines using this copper catalyst

Rhodium catalysts, process for their preparation and process for the preparation of substituted or unsubstituted diphenylamine by using the rhodium catalysts

Process for the preparation of 2,2-dimethylolalkanals

Process for the purification of caprolactam

Process for the production of isocyanates and for the production of light-colored foams therefrom

Supported catalyst, process for its preparation and its use for the preparation of hydroxydiphenyl

Process for the preparation of propane-1,3-diols, disubstituted in the 2-position

Process for the preparation of isocyanates or isocyanate mixtures useful for the preparation of polyurethane foams

Process for the evaporation of cyclohexanone oxime

Catalyst regeneration of boric acid on carbon catalysts

Purification of caprolactam

Ru--Pd halogen-free catalyzers and method for producing cycloaliphatic amines

Process for the preparation of acylbenzenes

Palladium catalyst and its use in the preparation of a mixture of optionally substituted cyclohexylamine and optionally substituted dicyclohexylamine

Process for the preparation of a mixture of cyclohexylamine and dicyclohexylamine

Process for the preparation of hydrooxydiphenyls

Process for the production of di-(4-aminocyclohexyl)-methane containing 15 to 25% by weight of the trans-trans isomer

Process for the preparation of n-alkylated aromatic amines

Process for removing boric acid from lactams

Process for the preparation of 2-alkyl-2-methylpropane-1,3-diol

Process for the oxidation of water-insoluble organic compounds

Process for the producing ε-caprolactam from the distillation of cyclohexanone oxime

Process for the preparation of an iron catalyst and a process for the preparation of primary amines by the hydrogenation of nitriles using said iron catalyst

Abrasion resistant catalyst

Method for processing lactam residues which contain boric acid