Inventor

SCHWARZ HANS-HELMUT

39 patents

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

SCHWARZ HANS-HELMUT

BAYER AG

Process for the preparation of 1,1,1,3,3,3-hexafluoropropane and 2-chloro-1,1,1,3,3,3-hexafluoropropane

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

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

Process for isolating dinitrogen monoxide

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

Process for the preparation of substituted succinic acid amides

Process for the preparation of 2,2-dimethylolalkanals

Process for the preparation of trimethylolpropane

Process for preparing azomethines

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

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

Preparation of polycarbonate from specific crude bisphenols

Process for the production of mixtures of alkylated aromatic hydroxy compounds

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

Process for the evaporation of cyclohexanone oxime

Process for the preparation of 4,4&#39;-dihydroxy-3,3&#39;,5,5&#39;-tetraalkyl-diphenylalkanes

Catalyst regeneration of boric acid on carbon catalysts

Purification of caprolactam

Process for preparing diphenylamines

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 polychloro-fluoro-cyclo-pentenes

Process for the preparation of Schiff&#39;s bases

Process for removing boric acid from lactams

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

Process for preparing hydroxydiphenyl

Process for preparing hydroxydiphenyl

Process for the oxidation of water-insoluble organic compounds

Process for the preparation of certain nuclear chlorinated benzotrichlorides

Process for the preparation of bisphenol bischlorocarbonic acid esters

Process for the preparation of alkyl aryl ethers

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

Process for halogen-fluorine exchange in organic compounds and catalysts for this process

Abrasion resistant catalyst

Method for processing lactam residues which contain boric acid

HAARMANN & REIMER GMBH

Process for the preparation of alkyl ethers

Process for the preparation of 4,4'-dihydroxy-3,3',5,5'-tetraalkyl-diphenylalkanes

Process for the preparation of Schiff's bases