Veba-chemie Aktiengesellschaft

Studiengesellschaft Aktiengesellschaft

Veba-chemie Atkiengesellschaft

Karl Schmitt

Josef Disteldorf

Werner Flakus

Werner Hubel

Felix Schmitt

Flexi Schmitt

Isophorone diisocyanate and reaction products of isophorone diisocyanate with polyols are substantially completely blocked with .epsilon.-caprolactam. The reaction product of isophorone diisocyanate and a polyol contains at least two isocyanate groups.

Epsilon-caprolactam blocked polyisocyanates

Lubricant comprising in admixture a monomeric ester of a branched dicarboxyic acid and aliphatic, primary monoalcohol, and a complex ester of dicarboxylic acid and hexanediol or trimethyl hexanediol.

Ester lubricant

A process for preparing fast setting varnishes for coating preferably metallic materials with highly deformable coatings by thermal treatment at temperatures exceeding 175.degree. C., preferably at 180.degree.-450.degree. C., consisting of a binding agent mixture dissolved in high-boiling varnish solvents and consisting of

Stable fast-setting varnishes based on polyesters and blocked aliphatic

Single-component polyurethane varnishes having long shelf life containing conventional solvents and the reaction product of 3-isocyanatomethyl-3,5,5-trimethylcyclohexylisocyanate (IPDI) and branched polyesters containing terminal hydroxyl groups. The polyesters contain intermolecular tin and are based on mixtures of aliphatic and aromatic dicarboxylic acids, 15 to 85 mole percent of the acids being aliphatic, the balance aromatic. The polyester and IPDI are reacted without catalysts at temperatures of 10.degree. to 35.degree. C and in such quantities that there are two isocyanate group for each --OH group.

Single component polyurethane varnish of long shelf life

Methyl isobutyl ketone is produced in a one-step process by contacting acetone and hydrogen at a temperature of from about 50.degree.-200.degree.C and a pressure between 50-100 atm, preferably 60-100 atm, in the presence of a catalyst composed of a cation exchange resin having from 0.001 to 0.1 weight percent of a noble metal distributed in monoatomic form therein.

Process for preparing methyl isobutyl ketone and catalyst

Stable, cross-linked polyurethane aqueous dispersions are prepared by

Stable polyurethane dispersions and method therefor

A polyurethane coating lacquer composition for substrates such as wood, metal, concrete, leather and plastics includes conventional solvents and

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Herne, Germany

Karl Schmitt