Stamicarbon B.v.

Egidius J Verheijen

Franciscus H Vandenbooren

Sijbrandus E Schaafsma

Johannes E Claassens

Charles H Geersheuvels

Erik Konijnenberg

Nicolaas L Duys

A composition of triglycidylisocyanurate, having reduced tackiness, consists of a solid mixture of at least triglycidylisocyanurate and a non-reactive polyester.

Composition of triglycidylisocyanurate with reduced tackiness

An improved process for the preparation of pyridines and/or hydrogenated pyridines that have been substituted with a hydrocarbon group at one or more carbon atoms, .gamma.-cyanoketone, in a gaseous phase and in the presence of hydrogen, is passed in a reaction zone over a first catalyst containing a catalytically active metal or compound of a metal selected from the group copper, silver, gold, iron, nickel, cobalt, ruthenium, rhodium, palladium, osmium, iridium and platinum to form a reaction mixture. A hydrogen-containing gas is separated from the reaction mixture, passed over a second catalyst containing a catalytically active metal or compound of a metal selected from the group iron, nickel and cobalt at a temperature of between 300.degree. and 800.degree. C., and the hydrogen-containing gas so treated is recycled to the reaction zone.

Process for the preparation of C-substituted pyridines and/or

A process for preparing pyridine with 2,6 lutidine as by-product, by catalytic demethylation of .alpha.-picoline in the gaseous phase with steam is disclosed wherein the demethylation step is conducted at a temperature of 250.degree.-360.degree. C. using a metallic hydrogenation catalyst at a contact time of about 0.5 to 15 seconds. Pyridine is a known important organic base with many uses, such as denaturant for alcohols and solvent in the rubber and paint industries.

Process for the preparation of pyridine and 2,6-lutidine

An improved process for the preparation of 5-(4-aminobutyl)-hydantoin and/or 2-ureido-6-amino-hexanoic acid amide by the liquid phase hydrogenation of 5-(3-cyanopropyl)-hydantoin and/or 2-ureido-5-cyano-pentanoic acid amide in the presence of ammonia, hydrogen and a hydrogenation catalyst. Catalyst dissolution into the reaction medium is reduced by utilizing a hydrogenation catalyst in a solid bed form and causing the compounds to be hydrogenated to pass through such solid bed catalyst.

Process for the preparation of 5-(4-amino butyl)-hydantoin and/or

5-(4-Aminobutyl) hydantoin is prepared by hydrogenation of 5-(3-cyanopropyl) hydantoin in the liquid phase with a catalyst and ammonia in the presence of greater than 0.4 up to about 2.0 of a dissolved alkali hydroxide per mole of hydantoin to be hydrolyzed. Use of the stated quantity of alkali hydroxide avoids catalyst loss by dissolution yet maintains hydrogenation efficiency.

Process for the preparation of 5-(4-aminobutyl) hydantoin and/or

Process for the preparation of resorcinols of the general formula: ##SPC1## Wherein R.sub.1, R.sub.2, R.sub.3, and R.sub.4, which are the same or different, are each hydrogen or an alkyl group containing up to 6 carbon atoms, and the total number of carbon atoms of R.sub.1, R.sub.2, R.sub.3, and R.sub.4 is no more than 12 carbon atoms, which comprises contacting keto esters of the general formula ##EQU1## wherein R.sub.1, R.sub.2, R.sub.3, and R.sub.4 are as defined above, and R.sub.5 is an alkyl, cycloalkyl, or monocyclic or bicyclic aryl or arylalkyl group containing up to 12 carbon atoms, with a dehydrogenation catalyst at a temperature of about 100.degree.C to 500.degree.C.

Preparation of resorcinol and alkyl-substituted derivatives thereof

Process for the preparation of cyclohexane-1,3-diones of the formula ##SPC1## Wherein R.sub.1 -R.sub.8, which are the same or different, are each hydrogen or an alkyl group containing up to 6 carbon atoms and the total number of carbon atoms of R.sub.1 -R.sub.8 is not more than 12 carbon atoms, comprising contacting in the gaseous state a delta-keto ester of the formula ##EQU1## wherein R.sub.1 -R.sub.8 are as defined above and R.sub.9 is an alkyl, cycloalkyl, or monocyclic or bicyclic arylalkyl or aryl group containing up to 12 carbon atoms, with a thermally stable solid material having an internal surface area of from about 100 tot 1500 m.sup.2 /gm. at a temperature of from 100 .degree.C to 500 .degree.C.

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Sittard, Netherlands

Egidius J Verheijen