Processes and compositions for dyeing or finishing fibrous materials
AssigneeHuntsman Textile Effects (Germany) GmbH
InventorsHarald Chrobaczek, Günther Tschida, Tanja Refle, Ernst Jan Siewers
Life of this patent
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Abstract
Compositions comprising a specific ethoxylated/propoxylated product as well as an alkylene carbonate, an epoxysilane or a polysiloxane are useful for dyeing or finishing fibrous materials. Reaction products formed from said products are also very useful for these purposes. Said products are preferably used as solutions in supercritical carbon dioxide.
Claims18
A process for dyeing or finishing fibrous materials which comprises applying to the fibrous materials a solution comprising:
- i) a product of formula (Ia) and/or a product of formula (Ib),
- each dissolved in a liquid in the supercritical state, and optionally in admixture with a product selected from a product of formula (II), a product of formula (III), a product of formula (IV), an α-aminocarboxylic acid and a mixture thereof,
- where
- E represents hydrogen or R1,
- R1 represents alkyl of 1 to 13 carbon atoms,
- one of R2 and R3 represents —CH3 while the other represents H,
- R4 represents H, —CH3, —CH2—CH3 or —CH2—OH,
- R5 in each occurrence independently represents R1 or —OH or —OR1,
- R6 in either occurrence independently represents R5 or R8,
- R7 in each occurrence independently represents R1,
- R8 in each occurrence independently represents a radical of formula (V) or of formula (VI),
- R9 in each occurrence independently represents hydrogen or —CH3,
- —X—NH2 (V)
- —Y—NH—Z—NH2 (VI)
- b represents 0 or 1 in the case of formula (Ia) and a number from 0 to 15 in the case of formula (Ib),
- t represents a number from 5 to 14 and the b:t ratio represents a number from 0 to 0.2 in formula (Ia) and from 0 to 1.1 in formula (Ib),
- k represents a number from 0 to 1000, and
- X and Y each independently represent a linear or branched alkylene radical of 1 to 4 carbon atoms and Z represents a linear or branched alkylene radical of 2 to 4 carbon atoms;
- and/or
- ii) a product dissolved in a liquid in the supercritical state obtained by reacting one or more products of formulae (Ia) and/or (Ib) as defined above with one or more products of formulae (II) and/or (III) as defined above.
A composition comprising
- a) a product of formula (Ia) or formula (Ib) or a mixture thereof,
- and
- b) a product selected from a product of formula (II), a product of formula (III), a product of formula (IV), an α-aminocarboxylic acid, and a mixture thereof,
- where
- E represents hydrogen or R1,
- R1 represents alkyl of 1 to 13 carbon atoms,
- one of R2 and R3 represents —CH3 while the other represents H,
- R4 represents H, —CH3, —CH2—CH3 or —CH2—OH,
- R5 in each occurrence independently represents R1 or —OH or —OR1,
- R6 in either occurrence independently represents R5 or R8,
- R7 in each occurrence independently represents R1,
- R8 in each occurrence independently represents a radical of formula (V) or of formula (VI),
- R9 in each occurrence independently represents hydrogen or —CH3,
- —X—NH2 (V)
- —Y—NH—Z—NH2 (VI)
- b represents 0 or 1 in the case of formula (Ia) and a number from 0 to 15 in the case of formula (Ib),
- t represents a number from 5 to 14 and the b:t ratio represents a number from 0 to 0.2 in formula (Ia) and from 0 to 1.1 in formula (Ib),
- k represents a number from 0 to 1000, and
- X and Y each independently represent a linear or branched alkylene radical of 1 to 4 carbon atoms and Z represents a linear or branched alkylene radical of 2 to 4 carbon atoms.
A reaction product obtained by reacting a product of formula (Ia) or formula (Ib) or a mixture thereof
- with at least one product of formula (II) or (III),
- where
- E represents hydrogen or R1,
- R1 represents alkyl of 1 to 13 carbon atoms,
- one of R2 and R3 represents —CH3 while the other represents H,
- R4 represents H, —CH3, —CH2—CH3 or —CH2—OH,
- R5 in each occurrence independently represents R1 or —OH or —OR1,
- R9 in each occurrence independently represents hydrogen or —CH3,
- b represents 0 or 1 in the case of formula (Ia) and a number from 0 to 15 in the case of formula (Ib),
- t represents a number from 5 to 14 and the b:t ratio represents a number from 0 to 0.2 in formula (Ia) and from 0 to 1.1 in formula (Ib).
The reaction product as claimed in 13 wherein the reaction product has a solubility in water of 0.001 mol to 1 mol per mole of water and a solubility in supercritical carbon dioxide of 0.001 mol to 1 mol per mole of supercritical carbon dioxide.
Dependencies are inferred from the claim text.