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AssigneeCiba-Geigy Corporation
InventorGunter Pusch
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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.
A process for the manufacture of a curable, textile-finishing condensation product, comprising the sequential steps of
An aqueous composition which is capable of rendering cellulosic textile fibers shrinkproof and crease-resistant, containing an effective amount of a curable, textile finishing condensation product manufactured by a process, comprising the sequential steps of
Dependencies are inferred from the claim text.