Inventor

ORBAN IVAN

19 patents

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

ORBAN IVAN

CIBA GEIGY CORP

Process for the preparation of sterically hindered hydroxyphenylcarboxylic acid esters

Process for the preparation of sterically hindered hydroxyphenylcarboxylic acid esters

Process for the preparation of polyaminotriazines

Process for the preparation of sterically hindered hydroxphenylcarboxylic acid esters

Solvent-free crystallization of pentaerythritol tetrakis-[3-(3,5-di-tert-butyl-4-hydroxyphenyl)propionate] and the novel alpha-crystalline form thereof

Process for the preparation of alkylated aromatic carboxylic acids and acyl halides

Azo coupling of 2-nitroanilines with 2,4,-disbustituted phenols

Process for the methylation of triazine compounds containing 2,2,6,6-tetramethylpiperidine groups

Process for producing polyesters from aliphatic dicarboxylic acids and polyalkylpiperidyldiols

Process for the preparation of 2,2,6,6-tetramethyl-4-oxopiperidine

Process for the preparation of 2,2,6,6-tetramethyl-4-oxopiperidine

Ortho cyclohexyl, para hydroxy aralkanoic acid esters and amide antioxidants

Process for the manufacture of triacetone-amine

Process for preparing 2,2,6,6-tetraalkyl-4-oxopiperidines

Process for the preparation of 2,2,6,6-tetramethyl-4-oxopiperidine

CIBA SC HOLDING AG

Process for the preparation of 2-(2,4-dihydroxylphenyl)-4,6-bis(2,4-dimehylphenyl)-s-triazine

Process for the preparation of thiophene-2-5-dicarboxylic acid and the dichloride thereof

Block oligomers containing 1-hydrocarbyloxy-2,2,6,6-tetramethyl-4-piperidyl groups as stabilizers for organic materials

Block oligomers containing 1-hydrocarbyloxy-2,2,6,6-tetramethyl-4-piperidyl groups as stabilizers for organic materials