Use of polyether modified siloxan block copolymers as hydrophilic softeners containing silicones for textiles, non-wovens and/or fibres made of natural and/or synthetic raw materials

摘要

The use of organopolysiloxanes (A) is claimed as additive in formulations for finishing fibers or fiber-containing products, where (A) are prepared by reacting hydro-siloxanes (I) with vinyl-siloxanes (II) in presence of platinum, rhodium or ruthenium catalysts, then subjecting the product to transition metal-catalyzed addition reaction of the silicon-hydrogen groups onto the double bonds of alkenyl-substituted polyethers (III) and optionally other olefins. The use of organopolysiloxanes (A) is claimed as additive in formulations for finishing fibers or fiber-containing products, where (A) are prepared by: (1) reacting hydro-siloxane(s) of formula (I) with vinyl-siloxane(s) of formula (II) in presence of platinum, rhodium or ruthenium catalysts; and (2) subjecting the product to transition metal-catalyzed addition reaction of the silicon-hydrogen groups onto the double bonds of alkenyl-substituted polyethers of formula (III) and optionally other olefins (optionally containing functional groups). Each R1 : same or different aliphatic or aromatic 1-20C hydrocarbyl; each R2 : as for R1 or H, provided that at least three R2 groups= H; a : 5-500; b : 1-50; c : 0-5 (preferably 0); d : 60-500; each R3 : alkyl, aryl or aralkyl (optionally carrying heteroatom substituents and/or ether functions); or H; each R4 : alkyl, aryl or aralkyl (optionally unsaturated and/or carrying heteroatom substituents); H; or COOH; e : 0-11; f : 3-80; the oxyalkylene units of (III) are in random or block arrangement. [Image] [Image] [Image].