Inventor

GUBELMANN MICHEL

FR25 patents

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

GUBELMANN MICHEL

RHONE POULENC CHIMIE

Process for treating a material comprising a polymer by hydrolysis

Hydroxylation of phenols/phenol ethers

Preparation of phenol by direct hydroxylation of benzene

Process for the preparation of trifluoro-ethanol by hydrolysis, in the gas phase, of chlorotrifluoroethane

Process for the preparation of carboxylic acids by controlled oxidation of the corresponding alkanes

Preparation of phenols by direct N2 O hydroxylation of aromatic substrates

Preparation of polyhydroxybenzenes by direct hydroxylation of phenols

Process for the preparation of halophenols

Hydroxylation of phenols/phenol ethers

Process for preparing hydroxylated aromatic derivatives by the Baeyer-Villiger reaction

C-alkylation of hydroquinone or monoethers thereof

Chemical compound containing alkali metals or alkaline earth metals, catalyst containing the compound and process for the production of the catalyst

Preparation of aliphatic carboxylic acids in the presence of heteropolyacid catalysts

Preparation of p-aminophenols

Process for producing itaconic anhydride

Hydroxylation of phenols/phenol ethers

Selective monomethylation of phenolic compounds

Preparation of methylhydroquinone

Preparation of dinitrotoluenes

Dehydrocyanation of aliphatic dinitriles

Preparation of methylenedi (phenylurethane)

Preparation of methylenedi(phenylurethane)

RHONE POULENC RORER SA

α-hydroxy-acids, preparation process and the use thereof

NOVACARB

Use of silica as agent for controlling the degradation of bicarbonate, resulting mixture and its application

RHODIA CHIMIE SA

Process for producing acid anhydrides