Patent US4441884A successfully refreshed from Google Patents.
US4441884A
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Quaternary ammonium compounds and their use as dyeing assistants for polyamide fibers
Assignee: Fidelity Union Bank
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Filing: 1978-11-09
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Granted: 1984-04-10
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Expires: 1998-11-09
Abstract
Abstract The present invention relates to a process for treating a polyamide textile substrate to increase the affinity thereof for anionic dyes or to reserve the same against cationic dyes comprising applying thereto, in a weakly alkaline medium, a compound of formula I, <IMAGE> I wherein R is phenyl; naphthyl; (C5-6)cycloalkyl; or phenyl or naphthyl substituted by a total of up to 3 substituents selected from the group consisting of (C1-4)alkyl, chlorine and bromine (maximum of two of each of these); each of R1 and R2, independently, is (C1-4)alkyl, and X(-) is a non-chromophoric anion.
Inventors
- 👤 Hans-Peter Baumann
- 👤 Urs Mosimann
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 20:51
CPC Classifications
D; D06; D06P; D06P3/00; D06P3/02; D06P3/04; D06P3/06; C; C09; C09B; C09B62/00; C09B62/02; C09B62/20; C09B62/24; C09B62/245; D06M; D06M13/00; D06M13/322; D06M13/46; D06M13/463; D06P1/00; D06P1/44; D06P1/655; D06P1/66; Y; Y10; Y10S; Y10S8/00; Y10S8/92; Y10S8/924
Claims Analysis
Total Claims: 18
Claim 1
Independent Claim
97 words
A process for treating a polyamide textile substrate to increase the affinity thereof for anionic dyes or to reserve the same against cationic dyes comprising applying thereto, in a weakly alkaline medium, a compound of formula I, ##STR6## wherein R is phenyl; naphthyl; (C 5-6 )cycloalkyl; or phenyl or naphthyl substituted by a total of up to 3 substituents selected from the group consisting of (C 1-4 )alkyl, chlorine and bromine (maximum of two of each of these); each of R 1 and R 2 , independently, is (C 1-4 )alkyl, and X.sup.⊖ is a non-chromophoric anion.
Claim 2
Dependent Claim
97 words
A process for treating a polyamide textile substrate to increase the affinity thereof for anionic dyes or to reserve the same against cationic dyes comprising applying thereto, in a weakly alkaline medium, a compound of formula I, ##STR6## wherein R is phenyl; naphthyl; (C 5-6 )cycloalkyl; or phenyl or naphthyl substituted by a total of up to 3 substituents selected from the group consisting of (C 1-4 )alkyl, chlorine and bromine (maximum of two of each of these); each of R 1 and R 2 , independently, is (C 1-4 )alkyl, and X.sup.⊖ is a non-chromophoric anion.
Claim 3
Dependent Claim
22 words
A process according to claim 1, wherein R is phenyl, tolyl, xylyl, naphthyl, naphthyl monosubstituted by methyl or chlorine, cyclopentyl or cyclohexyl.
Claim 4
Dependent Claim
21 words
A process according to claim 2, in which each of R 1 and R 2 , independently, is methyl or ethyl.
Claim 5
Dependent Claim
19 words
A process according to claim 1, in which X.sup.⊖ is Cl.sup.⊖, Br.sup.⊖, I.sup.⊖, or CH 3 SO 4 .sup.⊖.
Claim 6
Dependent Claim
14 words
A process according to claim 2, in which R is phenyl, naphthyl or cyclohexyl.
Claim 7
Dependent Claim
15 words
A process according to claim 1, in which a subsequent fixation step is carried out.
Claim 8
Dependent Claim
23 words
A process according to claim 1, in which the compound of formula I is applied to the substrate in a solution or paste.
Claim 9
Dependent Claim
38 words
A process according to claim 7, in which the paste or solution contains a compound of formula I in the range of from 0.1 to 5% by weight, based on the total weight of the paste or solution.
Claim 10
Dependent Claim
36 words
A process according to claim 7, in which the paste of solution contains a weakly alkaline salt in an amount of form 0.1 to 2% by weight, based on the weight of the paste or solution.
Claim 11
Dependent Claim
27 words
A process according to claim 1, in which the substrate is subsequently dyed or printed with an anionic dye or a mixture of anionic and cationic dyes.
Claim 12
Dependent Claim
14 words
A process according to claim 3 in which R is phenyl, naphthyl or cyclohexyl.
Claim 13
Dependent Claim
19 words
A process according to claim 3 in which R is phenyl and R 1 and R 2 are methyl.
Claim 14
Dependent Claim
18 words
A process according to claim 8 wherein the paste or solution has a pH of 7 to 10.
Claim 15
Dependent Claim
25 words
A process according to claim 13 wherein a fixation step is carried out following the application of the compound of formula I to the substrate.
Claim 16
Dependent Claim
37 words
A process according to claim 14 wherein, following application of the compound of formula I and the fixation step, there is applied to the treated substrate an anionic or cationic dyestuff or a mixture of such dyestuffs.
Claim 17
Dependent Claim
30 words
A process according to claim 15 wherein, in the compound of formula I, R is phenyl, naphthyl or cyclohexyl and R 1 and R 2 are, independently, methyl or ethyl.
Claim 18
Dependent Claim
18 words
A process according to claim 16 wherein R is phenyl and R 1 and R 2 are methyl.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
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| 3.5 Years (Year 4) | 1987-04-10 | 1987-10-10 | 1988-04-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1991-04-10 | 1991-10-10 | 1992-04-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1995-04-10 | 1995-10-10 | 1996-04-10 | $7700.00 | Window Closed / Lapsed |