Inventor

OSTERMAIER JOHN J

US20 patents

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

OSTERMAIER JOHN J

INVISTA NORTH AMERICA SARL

Distillative method for separating hexamethylenediamine from a mixture comprising hexamethylenediamine, 6-aminocapronitrile and tetrahydroazepine

Process for producing hexamethylenediamine and aminocapronitrile from adiponitrile, wherein the hexamethylenediamine contains less than 100 ppm tetrahydroazepine

Process for making caprolactam

Process for making solid triphenylboron-pyridine or its adduct

Process for making triphenylboron-pyridine compound

Method for making caprolactam from impure ACN in which THA is not removed until after caprolactam is produced

Method for making caprolactam from impure 6-aminocapronitrile

DU PONT

Preparation of zerovalent nickel complexes

[Hexakis(pentenenitrilo)nickel II]bis-[μ-(cyano) bis(triphenylborane) (I)], its method of preparation and its use

Purification of 2-methylglutaronitrile or adiponitrile

Recovery of arylboranes

Recovery of hexamethylenediamine (HMD) with low polarographically reducible impurities (PRI) from mixtures of HMD, aminocapronitirle and PRI

Method for making caprolactam from impure ACN wherein ammonia and water are removed from crude caprolactam in a simple separation step and then THA is removed from the resulting caprolactam melt

OSTERMAIER JOHN J

Nickel compositions for preparing nickel metal and nickel complexes

Nickel metal compositions and nickel complexes derived from basic nickel carbonates

Preparing a nickel phosphorus ligand complex

Nickel compositions for preparing nickel metal and nickel complexes

Process for improving adiponitrile quality

MEDHEKAR VINAY

Calcination and reduction process including a fluidizing bed reactor

FRAGA DUBREUIL JOAN

Metal-ligand catalyst formation