Inventor

SPRINGER HELMUT

DE45 patents

⚠️ This page may combine multiple inventors who share the name “SPRINGER HELMUT”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.

SPRINGER HELMUT

RUHRCHEMIE AG

Process for the preparation of sulfonated aryl phosphine

Process for the manufacture of β-(dimethylamino)-propionitrile

Quaternary ammonium salts of sulfonated triarylphosphines and process for the production thereof

Process for preparing 3-dimethylamino-2,2-dimethylpropanal

Process for preparing 2-methyl-2-sec.butyl-1,3-propanediol

2-Propyl-pent-4-en-1-al

Process for the manufacture of 2,3-dimethylpentanal

Process for preparing methacrolein

Process for preparing methyl-nonyl-acetaldehyde

Process for the production of di-n-propylacetic acid

Process for preparing 2,3-dimethyl-butene-2

2-Propyl-pent-4-en-1-al

Process for the preparation of 2,2-dimethylpropanediol-1,3

Quaternary ammonium salts of sulfonated triarylphosphines and process for the production thereof

Process for preparing 2,3-dimethyl-2,3-butanediol

Process for preparing 2-methylenealdehydes

HOECHST AG

Process for the recovery of rhodium from residues of the distillation of products of the oxo synthesis

Process for the preparation of α-alkyl substituted aldehydes

Process for the preparation of unsaturated ethers

Process for the preparaton of 2-methylbutanal

Process for recovering rhodium

Process for the recovery of rhodium from the residues of distillation processes

Novel rhodium recovery

Process for the preparation of 2-(4-chlorophenyl)-3-methylbutyric acid

Process for the separation of 2-methylalkanals from isomers thereof

Process for the preparation of carboxylic acid methyl esters

Process for the preparation of 2,2-dimethylpropane-1,3-diol

Process for the preparation of esters of 5-alkylpyridine-2,3-dicarboxylic acid

Mixtures of isomeric pentanoic acids, esters prepared therefrom, and their use as lubricants

CELANESE CHEM EUROPE GMBH

Method for the synthesis of aliphatic carboxylic acids from aldehydes

Process for preparing TCD-dialdehyde

Process for preparing ester plasticizers

Process for preparing N-methyldialkylamines from secondary dialkylamines and formaldehyde

Method for the synthesis of straight-chain aliphatic carboxylic acids from aldehydes

Method for producing aliphatic carboxylic acids from aldehydes

Process for preparing aliphatic straight-chain and beta-alkyl-branched carboxylic acids

Process for preparing TCD-monenal

Process for preparing TCD-alcohol DM

3(4),7(8)-Bis(aminomethyl)bicyclo[4.3.0]nonane and a process for its preparation

OXEA DEUTSCHLAND GMBH

Catalytic process for preparing aliphatic straight-chain and β-alkyl-branched carboxylic acids

Process for preparing TCD-diamine

Bicyclo[4.3.0]nonane-3(4),7(8)-dicarboxylic acid and a process for its preparation

ITALIMPIANTI

Walking beam furnace

Walking beam furnace

CELANESE GMBH

Process for preparing saturated alcohols