Inventor
LAPPE PETER
DE48 patents
⚠️ This page may combine multiple inventors who share the name “LAPPE PETER”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
HOECHST AG
35 patentsUS5347045ASep 13, 1994
Sulfonated 2,2'-bis (diphenylphosphinomethyl)-1,1'-binaphthalenes, process for their preparation and their use in a process for the hydroformylation of olefinically unsaturated compounds
HOECHST AG57 citations96
US6482972B1Nov 19, 2002
Isomeric nonanols and decanols, their preparation, phthalic esters obtained therefrom and their use as plasticizers
HOECHST AG45 citations92
US5264600ANov 23, 1993
Process for the recovery of rhodium from residues of the distillation of products of the oxo synthesis
HOECHST AG32 citations92
US5756854AMay 26, 1998
Process for the hydroformylation of olefinically unsaturated compounds
HOECHST AG22 citations88
US5583250ADec 10, 1996
Mixtures of isomeric decyl alcohols, phthalates obtainable therefrom, and their use as plasticizers
HOECHST AG15 citations82
US5481045AJan 2, 1996
Sulfonated 2,2'-bis (diphenylphosphinomethyl)-1,1'-binaphthalenes, process for their preparation and their use in a process for the hydroformylation of olefinically unsaturated compounds
HOECHST AG17 citations82
US5268514ADec 7, 1993
Decyl alcohol mixtures, phthalic esters obtainable therefrom and their use as plasticizers
HOECHST AG19 citations82
US5145488ASep 8, 1992
Process for the preparation of mixtures of oil-soluble iron and magnesium salts of saturated aliphatic monocarboxylic acids and their use
HOECHST AG19 citations80
US5354911AOct 11, 1994
Process for the preparation of unsaturated ethers
HOECHST AG8 citations74
US4950800AAug 21, 1990
Process for the preparaton of 2-methylbutanal
HOECHST AG9 citations74
US6051743AApr 18, 2000
Process for the preparation of predominantly unbranched higher primary alcohols
HOECHST AG7 citations73
US5661204AAug 26, 1997
Mixtures of isomeric decyl alcohols, phthalates obtainable therefrom, and their use as plasticizers
HOECHST AG9 citations73
US5516948AMay 14, 1996
Process for making a mixture of isomeric decyl alcohols
HOECHST AG7 citations73
US5463147AOct 31, 1995
Decyl alcohol mixtures, phthalic esters obtainable therefrom and their use as plasticizers
HOECHST AG13 citations73
US5369162ANov 29, 1994
Decyl alcohol mixtures, phthalic esters obtainable therefrom and their use as plasticizers
HOECHST AG11 citations73
US5085835AFeb 4, 1992
Process for recovering rhodium
HOECHST AG10 citations73
US5451698ASep 19, 1995
Process for the preparation of sulfonated arylphosphines
HOECHST AG15 citations72
US5294415AMar 15, 1994
Process for the separation and recovery of rhodium from the products of the oxo synthesis
HOECHST AG13 citations72
US5039497AAug 13, 1991
Process for separating copper from aqueous base solutions
HOECHST AG9 citations72
US5808168ASep 15, 1998
Process for the hydroformylation of olefinically unsaturated compounds
HOECHST AG12 citations71
US5462986AOct 31, 1995
Decyl alcohol mixtures, phthalic esters obtainable therefrom and their use as placticizers
HOECHST AG8 citations71
US5922634AJul 13, 1999
Catalyst systems based on rhodium complexes containing diphosphine ligands and their use in the preparation of aldehydes
HOECHST AG5 citations63
US5847200ADec 8, 1998
Substituted diphosphines and a process for their preparation
HOECHST AG4 citations63
US5367107ANov 22, 1994
Process for the preparation of aldehydes
HOECHST AG3 citations63
US5151537ASep 29, 1992
Process for the recovery of rhodium from the residues of distillation processes
HOECHST AG3 citations63
US5091546AFeb 25, 1992
Novel rhodium recovery
HOECHST AG5 citations63
US5072037ADec 10, 1991
Process for the preparation of 2-(4-chlorophenyl)-3-methylbutyric acid
HOECHST AG5 citations63
US5064508ANov 12, 1991
Process for the separation of 2-methylalkanals from isomers thereof
HOECHST AG6 citations63
US4885383ADec 5, 1989
Process for the preparation of carboxylic acid methyl esters
HOECHST AG3 citations63
US5684208ANov 4, 1997
Process for preparing pentenals
HOECHST AG3 citations62
US5382716AJan 17, 1995
Decyl alcohol mixtures, phthalic obtainable therefrom, and their use as plasticizers
HOECHST AG6 citations62
US5072058ADec 10, 1991
Process for the preparation of 2,2-dimethylpropane-1,3-diol
HOECHST AG5 citations61
US6020532AFeb 1, 2000
Process for the preparation of aldehydes employing catalyst compositions based on rhodium complexes containing diphosphine ligands
HOECHST AG1 citations52
US5182400AJan 26, 1993
Process for the preparation of esters of 5-alkylpyridine-2,3-dicarboxylic acid
HOECHST AG0 citations52
US5410072AApr 25, 1995
Mixtures of isomeric pentanoic acids, esters prepared therefrom, and their use as lubricants
HOECHST AG1 citations49
CELANESE CHEM EUROPE GMBH
8 patentsUS6800783B2Oct 5, 2004
Method for the synthesis of aliphatic carboxylic acids from aldehydes
CELANESE CHEM EUROPE GMBH13 citations84
US7015362B2Mar 21, 2006
Process for preparing TCD-dialdehyde
CELANESE CHEM EUROPE GMBH13 citations83
US6117277ASep 12, 2000
Process for the distillation of alcohols
CELANESE CHEM EUROPE GMBH18 citations83
US6982352B2Jan 3, 2006
Process for preparing N-methyldialkylamines from secondary dialkylamines and formaldehyde
CELANESE CHEM EUROPE GMBH8 citations74
US7122706B2Oct 17, 2006
Process for preparing TCD-monenal
CELANESE CHEM EUROPE GMBH4 citations62
US6939997B2Sep 6, 2005
Process for preparing TCD-alcohol DM
CELANESE CHEM EUROPE GMBH6 citations62
US7196128B2Mar 27, 2007
Carboxylic esters based on limonene alcohol [3-(4′-methylcyclohexyl)butanol] and having a low melting point
CELANESE CHEM EUROPE GMBH1 citations49
US7074304B2Jul 11, 2006
Process for purifying alicyclic alcohols
CELANESE CHEM EUROPE GMBH0 citations48
RUHRCHEMIE AG
4 patentsUS4483802ANov 20, 1984
Process for the preparation of sulfonated aryl phosphine
RUHRCHEMIE AG36 citations91
US4710321ADec 1, 1987
Quaternary ammonium salts of sulfonated triarylphosphines and process for the production thereof
RUHRCHEMIE AG10 citations73
US4918247AApr 17, 1990
Process for the preparation of 2,2-dimethylpropanediol-1,3
RUHRCHEMIE AG5 citations58
US4673535AJun 16, 1987
Quaternary ammonium salts of sulfonated triarylphosphines and process for the production thereof
RUHRCHEMIE AG1 citations52