Inventor

HELLBACH HANS

DE7 patents

Patents

7 patents

US4596679AJun 24, 1986

Multiple-step process for the preparation of 3-isocyanatomethyl-3,5,5-trimethylcyclohexylisocyanate

BASF AG145 citations97

US4596678AJun 24, 1986

Multiple-step process for the preparation of hexamethylene diisocyanate-1,6 and/or isomeric aliphatic diisocyanates with six carbon atoms in the alkylene residue

BASF AG150 citations96

US4613466ASep 23, 1986

Preparation of hexamethylene 1,6-diisocyanate and/or isomeric diisocyanates where alkylene is of 6 carbon atoms

BASF AG26 citations92

US4482499ANov 13, 1984

Process for the preparation of isocyanates by thermal cleaving of urethanes

BASF AG35 citations92

US4681946AJul 21, 1987

Preparation of nicotinamide

BASF AG8 citations71

US4138591AFeb 6, 1979

Manufacture of alkylphenols

BASF AG8 citations68

US4491674AJan 1, 1985

Process and apparatus for the safe supply of molecular oxygen or of gas containing molecular oxygen to an oxidation of hydrocarbons

BASF AG6 citations58