still for framstellning of stable preparations of omsettningsprodukter epoxides of polymeric fatty acids and amines

摘要

1314048 Anti-felting finishes CIBA-GEIGY AG 9 Nov 1970 [10 Nov 1969] 53234/70 Heading D1P [Also in Division C3] Textiles are finished by reaction at 35-100‹C with a product obtained by reacting: (A) a reaction product of (I) at least one polyepoxide containing at least 2 epoxy groups per molecule and (II) at least one polymeric fatty acid, the equivalent ratio of epoxide groups to acid groups being 0.45:1 to 0.95:1, and (B) an amine containing at least one amino group and exclusively basic N atoms or ammonia, and (C) optionally an aliphatic or aromatic diisocyanate. The equivalent ratio of acid groups to amino or ammonia is 1:1 to 1:10 and acid groups to isocyanate, when present, 1:0.1 to 1:1.5. Not later than on completion of the reaction the product has, with addition of base if necessary, a pH of 7.5-12 after dilution with water. (A), (B) and (C) may be reacted in any order. I may be a diglycidyl ether of bisphenol A having an epoxide content of at least 5 equivalents per Kg. II may be a dimerised to trimerised linoleic or linolenic acid. Suitable amines are H 2 N(CH 2 CH 2 NH) n CH 2 CH 2 NH 2 , 3, 5, 5-trimethyl-1-amino-3-aminomethylcyclohexane or 1-amino-2-aminomethylcyclopentane. Reaction may take place in a solvent which is miscible with water to an unlimited extent. Examples relate to processes in which wool is rendered non-felting; these may be combined with a dyeing process.