US2005022310A1PendingUtilityA1
Process for treating solvent-spun, cellulosic fibres
Priority: Nov 2, 2001Filed: Apr 22, 2004Published: Feb 3, 2005
Est. expiryNov 2, 2021(expired)· nominal 20-yr term from priority
Inventors:Andrew Renfrew
D01F 11/02D01F 2/00C07C 309/51D06M 13/41D01F 11/00
44
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Claims
Abstract
The invention relates to a process for treating solvent-spun, cellulosic fibres, wherein the fibres are contacted with a textile auxiliary agent in an alkaline environment. The process according to the invention is characterized in that a compound of the general formula or a salt thereof, respectively, is used as the textile auxiliary agent, wherein R 1 is a bridging link selected from the group consisting of a linear or branched chain comprising 1 to 4 C-atoms and phenyl, R 2 and R 3 are the same or different and are selected from the group consisting of (CH 2 ) m —CH═CH 2 with m=0 to 2, and wherein R 4 denotes a ionic group and/or a group ionizable in an alkaline environment.
Claims
exact text as granted — not AI-modified1 - 21 . (Cancelled)
22 . A process for treating solvent-spun, cellulosic fibers comprising contacting the fibers with a textile auxiliary agent in an alkaline environment, wherein the textile auxiliary agent has a general formula (I)
or is a salt thereof,
wherein R 1 is a bridging link selected from the group consisting of a linear or branched chain comprising 1 to 4 C-atoms and phenyl,
wherein R 2 and R 3 are the same or different and are selected from the group consisting of (CH 2 ) m —CH═CH 2 with m=0 to 2, and
wherein R 4 denotes a ionic group and/or a group ionizable in an alkaline environment.
23 . The process according to claim 22 , wherein R 4 is selected from the group consisting of —SO 3 H, —COOH, —OH and —SH.
24 . The process according to claim 22 , wherein R 2 and R 3 are (CH 2 ) m -CH═CH 2 .
25 . The process according to claim 23 , wherein R 2 and R 3 are (CH 2 ) m —CH═CH 2 .
26 . The process according to claim 22 , wherein the textile auxiliary agent has a formula (II)
or is a salt thereof.
27 . The process according to claim 23 , wherein the textile auxiliary agent has a formula (II)
or is a salt thereof.
28 . The process according to claim 24 , wherein the textile auxiliary agent has a formula (II)
or is a salt thereof.
29 . The process according to claim 26 , wherein the textile auxiliary agent has a formula (III)
or is a salt thereof.
30 . The process according to claim 27 , wherein the textile auxiliary agent has a formula (IV)
or is a salt thereof.
31 . The process according to claim 28 , wherein the textile auxiliary agent has
or is a salt thereof.
32 . The process according to claim 22 , wherein the textile auxiliary agent has a formula (V)
or is a salt thereof.
33 . The process according to claim 23 , wherein the textile auxiliary agent has a formula (V)
or is a salt thereof.
34 . The process according to claim 24 , wherein the textile auxiliary agent has a formula (V)
or is a salt thereof.
35 . The process according to claim 32 , wherein the textile auxiliary agent has a formula (VI)
or is a salt thereof.
36 . The process according to claim 33 , wherein the textile auxiliary agent has a formula (VI)
or is a salt thereof.
37 . The process according to claim 34 , wherein the textile auxiliary agent has a formula (VI)
or is a salt thereof.
38 . The process according to claim 22 , wherein the textile auxiliary agent is in the form of the sodium, lithium, potassium, calcium or magnesium salt.
39 . The process according to claim 22 , wherein the fibers are contacted with an alkaline solution of the textile auxiliary agent.
40 . The process according to claim 22 , further comprising providing a compound of the formula (VII)
wherein R 5 and R 6 both are (CH 2 ) n —X, n=2 to 4, X=halogen; reacting the compound of formula (VII) to a textile auxiliary agent according to formula (I) prior to or during contacting the fibers with the textile auxiliary agent according to formula(I), wherein R 2 and R 3 both mean (CH 2 ) m -CH═CH 2 , wherein m=n−2.
41 . The process according to claim 22 , wherein the fibers are provided in the never-dried state.
42 . The process according to claim 22 , wherein the fibers are provided as fiber assemblies or as a component of a fiber assembly
43 . Solvent-spun cellulose fibers treated by a process comprising contacting the fibers with a textile auxiliary agent in an alkaline environment, wherein the textile auxiliary agent has a general formula (I)
or is a salt thereof,
wherein R 1 is a bridging link selected from the group consisting of a linear or branched chain comprising 1 to 4 C-atoms and phenyl,
wherein R 2 and R 3 are the same or different and are selected from the group consisting of (CH 2 ) m —CH═CH 2 with m=0 to 2, and
wherein R 4 denotes a ionic group and/or a group ionizable in an alkaline environment.
44 . A fiber assembly containing solvent-spun cellulose fibers treated by a process comprising contacting the fibers with a textile auxiliary agent in an alkaline environment, wherein the textile auxiliary agent has a general formula (I)
or is a salt thereof,
wherein R 1 is a bridging link selected from the group consisting of a linear or branched chain comprising 1 to 4 C-atoms and phenyl,
wherein R 2 and R 3 are the same or different and are selected from the group consisting of (CH 2 ) m —CH═CH 2 with m=0 to 2,
wherein R 4 denotes a ionic group and/or a group ionizable in an alkaline environment, and wherein the fibers are provided as fiber assemblies or as a component of a fiber assembly.
45 . A compound having the formula (II)
or is a salt thereof, wherein R 2 and R 3 are the same or different and are selected from the group consisting of (CH 2 ) m —CH═CH 2 with m=0 to 2, R 4 denotes a ionic group and/or a group ionizable in an alkaline environment provided that
if R 4 ═—OH and R 2 and R 3 both are —CH═CH 2 , the two amide groups are not in para-position to each other,
if R 4 ═—SO 3 H, R 2 and R 3 both are —CH═CH 2 and the two amide groups are in ortho-position to each other, the calcium salt is excluded.
46 . A process for the production of a compound according to claim 45 comprising reacting a compound having the formula (VIII)
with a compound having the formula (IX)
wherein R 2 and R 3 are the same or different and are selected from the group consisting of (CH 2 ) m —CH═CH 2 with m 0 to 2, R 4 denotes a ionic group and/or a group ionizable in an alkaline environment.
47 . The process of claim 46 , further comprising converting the compound obtained to the form of a salt.
48 . A process for the production of a compound according to claim 45 comprising reacting in an alkaline solution a compound having the formula (X)
wherein R 5 and R 6 both are (CH 2 ) n —X, n=2 to 4, X=halogen, with a compound having a formula (II),
wherein R 2 and R 3 both mean (CH 2 ) m —CH═CH 2 , wherein m=n−2.Join the waitlist — get patent alerts
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