Inventor

BERGFELD MANFRED

52 patents

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BERGFELD MANFRED

AKZONA INC

Polyfunctional isocyanates free of alkali and urea groups

Preparation of trans cyclohexane 1,4-diamine

Preparation of trans cyclohexane 1,4 diisocyanate

Process for the preparation of nitrosobenzene

Process for the preparation of para-amino-diphenylamine

Preparation of trans cyclohexane 1,4-diurea

Preparation of trans cyclohexane,1,4-diisocyanate and related compounds

Preparation of trans cyclohexane 1,4-diisocyanate

Preparation of trans-cyclohexane-1,4-disulphonyl urea

Process for the preparation of dithiazole-disulfides

Preparation of trans-cyclohexane-1,4-diurethanes

Benzene-1,3,5-tris-acetoxime and the process for making phloroglucinol therewith

Process for the preparation of phloroglucinol

Process for the preparation of dithiazolyl disulfides

Process for the preparation of thiuram disulfides

Process for the preparation of thiuram disulfides

Process for the preparation of asymmetrical N-phenyl-N&#39;-substituted para-phenylene diamines

Preparation of bis-n-chloramides of cycloaliphatic carboxylic acids

Benzene-1,3,5-tris-acetoxime and the process for making phloroglucinol therewith

Process for the preparation of para-nitroso-diphenylhydroxylamines

Benzene-1,3,5-tris-acetoxime and the process for making phloroglucinol therewith

Production of N,N-dichloro-terephthalamide and N,N-dichloro-isophthalamide

Process for the preparation of 2-mercaptobenzothiazole

Process for the preparation of isocyanate derivatives of aliphatic, cycloaliphatic, and araliphatic compounds

Process for the preparation of bis-N-chloramides

Process for the preparation of nitrosobenzene

Benzene-tricarboxylic acid-(1,3,5)-tri-N-chloramide and process for the preparation thereof

Process for the preparation of nitrosobenzene

AKZO NV

Process for the preparation of N,N&#39;-disubstituted guanidines

Process for synthesizing an ammonia complex of zinc bisdithiocarbamate

Process for the production of thiazolyl-2-sulphenamides

Thiuram polysulfide

Polymere N-halogenamide auf basis von acryl-und methacrylamid

Polymeric N-halogenoamides on the basis of acrylamide and methacrylamide

Method for the production of blocked isocyanates

Process for the production of aromatic and cycloaliphatic dicarboxylic acid diamides

Production of p-aminobenzoic acid

Thiuram polysulfide production

Process for the preparation of organic mono- and polyisocyanates

Method for manufacturing dibenzylamine

Process for the preparation of ethylene-ethane mixtures

Process for synthesizing alkylene bisdithiocarbamates or the ammonia adducts thereof as well as mixtures that can be synthesized thereby

AKZO NOBEL NV

Process for producing gamma-butyrolactone

Process for producing pyrrolidone and N-alkyl pyrrolidones

Process for the preparation of benzothiazolyl-2-sulphenamides

Method for manufacturing tert-butylamine

Process for producing ester quats

Process for the production of N, N, N′, N′,-tetra-(2-hydroxyethyl)ethylene diamine

Process for the oxidation of di-, tri-, oligo- and polysaccharides into polyhydroxycarboxylic acids

THIOPLAST CHEMICALS GMBH & CO

Oxidation of mercaptoethanol

Process for the preparation of asymmetrical N-phenyl-N'-substituted para-phenylene diamines

Process for the preparation of N,N'-disubstituted guanidines