PROCESS FOR THE MANUFACTURE OF UREA-HCHO-isobutyraldehyde condesnation products and compositions thereof

This invention describes a process for the manufacture of condensation products and compositions obtained thereby. The condensation products are prepared by the reaction of 2 to 3 moles of urea with 0,9 to 1,1 mole of formaldehyde and 1 mole of isobutyraldehyde in the presence of 0,2 to 1,0 equivale...

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Bibliographische Detailangaben
Hauptverfasser:	PUSCH, GUNTER
Format:	Patent
Sprache:	eng
Schlagworte:	CHEMISTRY COMPOSITIONS BASED THEREON FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR LAUNDERING MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONSONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS METALLURGY ORGANIC MACROMOLECULAR COMPOUNDS TEXTILES THEIR PREPARATION OR CHEMICAL WORKING-UP TREATMENT OF TEXTILES OR THE LIKE TREATMENT, NOT PROVIDED FOR ELSEWHERE IN CLASS D06, OF FIBRES, THREADS, YARNS,FABRICS, FEATHERS, OR FIBROUS GOODS MADE FROM SUCH MATERIALS
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Beschreibung
Zusammenfassung:	This invention describes a process for the manufacture of condensation products and compositions obtained thereby. The condensation products are prepared by the reaction of 2 to 3 moles of urea with 0,9 to 1,1 mole of formaldehyde and 1 mole of isobutyraldehyde in the presence of 0,2 to 1,0 equivalent of strong acids and 4 to 18 moles of water. The pH-value of the resulting products is adjusted to 7 to 9,5 and the water is partially to almost completely removed. Then the products are methylolated with 3 to 4 moles of formaldehyde. Finally the condensation products are etherified with low alcohols in usual manner. Used singly or together with other N-methylol compounds and their ethers with low alcohols, the products are useful compositions which are capable of rendering cellulosic textile materials and blends with synthetic fibres crease- and shrinkproof.