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US4382801A
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Process for spin dyeing polymers or copolymers of acrylonitrile with quaternized heterocyclic diazo dye and tetrafluoro-borate anion
Assignee: Novartis Corp
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Filing: 1981-12-14
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Granted: 1983-05-10
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Expires: 2001-12-14
Abstract
Abstract The invention relates to a process for spin dyeing polymers of acrylonitrile or copolymers containing predominantly acrylonitrile, which process comprises adding to the spinning solution a monocationic dye salt of the formula ##STR1## wherein D is the group of atoms necessary to close a 5-membered heterocyclic ring containing two N-atoms, or to close a 6-membered heterocyclic ring, which rings may optionally contain fused benzene rings, or is the group of atoms necessary to close a benzthiazole ring, and Q is the radical of a carbocyclic or heterocyclic aromatic coupling component, and R 1 is alkyl, aralkyl or aryl. The yellowish-red transparent fibres obtained have excellent fastness properties.
Inventors
- 👤 Peter Loew
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 23:32
CPC Classifications
C; C09; C09B; C09B44/00; C09B44/10; C09B44/14; C09B44/16; C09B44/20; C09B69/00; C09B69/02; C09B69/06; C09B69/065; D; D01; D01F; D01F1/00; D01F1/02; D01F1/06; Y; Y10; Y10S; Y10S8/00; Y10S8/92; Y10S8/927
Claims Analysis
Total Claims: 13
Claim 1
Independent Claim
94 words
A process for spin dyeing polymers of acrylonitrile or copolymers containing predominantly acrylonitrile, which process comprises adding to the spinning solution a monocationic dye salt of the formula ##STR34## wherein D is the group of atoms necessary to close a 5-membered heterocyclic ring containing two N-atoms, or to close a 6-membered heterocyclic ring, which rings may optionally contain fused benzene rings, or is the group of atoms necessary to close a benzthiazole ring, and Q is the radical of a carbocyclic or heterocyclic aromatic coupling component, and R 1 is alkyl, aralkyl or aryl.
Claim 2
Dependent Claim
94 words
A process for spin dyeing polymers of acrylonitrile or copolymers containing predominantly acrylonitrile, which process comprises adding to the spinning solution a monocationic dye salt of the formula ##STR34## wherein D is the group of atoms necessary to close a 5-membered heterocyclic ring containing two N-atoms, or to close a 6-membered heterocyclic ring, which rings may optionally contain fused benzene rings, or is the group of atoms necessary to close a benzthiazole ring, and Q is the radical of a carbocyclic or heterocyclic aromatic coupling component, and R 1 is alkyl, aralkyl or aryl.
Claim 3
Dependent Claim
21 words
A process according to claim 1, wherein D is the group of atoms necessary to close a pyrazole or imidazole ring.
Claim 4
Dependent Claim
19 words
A process according to claim 1, wherein D is the group of atoms necessary to close a benzthiazole ring.
Claim 5
Dependent Claim
73 words
A process according to claim 1 which comprises the use of a dye salt of the formula ##STR35## wherein R 3 and R 4 are unsubstituted or substituted C 1 -C 4 alkyl, benzyl, or phenyl or phenyl substituted by chlorine, methyl or C 1 -C 2 alkoxy, R 5 and R 6 are hydrogen, C 1 -C 4 alkyl or phenyl, or R 5 and R 6 are a fused benzene ring.
Claim 6
Dependent Claim
30 words
A process according to claim 1 which comprises the use of a dye salt of the formula ##STR36## wherein R 3 to R 6 are as defined in claim 3.
Claim 7
Dependent Claim
52 words
A process according to claim 1 which comprises the use of a dye salt of the formula ##STR37## wherein R 3 is as defined in claim 4 and Q is as defined in claim 1, R 7 is hydrogen, chlorine, methyl, C 1 -C 2 alkoxy or C 1 -C 4 alkanoylamino.
Claim 8
Dependent Claim
137 words
A process according to claim 1, wherein Q is a radical of the formula ##STR38## wherein R 1 is hydrogen, C 1 -C 4 alkyl unsubstituted or substituted by hydroxy, C 1 -C 2 alkoxy, C 1 -C 4 alkanoyloxy or cyano, or is cyclohexyl or benzyl, or is phenyl or phenyl substituted by chlorine, methyl or C 1 -C 2 alkoxy, R 2 is hydrogen, C 1 -C 4 alkyl unsubstituted or substituted by hydroxy, C 1 -C 2 alkoxy, C 1 -C 4 alkanoyloxy or cyano, or is cyclohexyl or benzyl, X and Y are hydrogen, methyl or C 1 -C 2 alkoxy, or wherein R 1 and R 2 , together with the nitrogen atom to which they are attached, form a 5- or 6-membered ring which may optionally contain additional N- or O-atoms.
Claim 9
Dependent Claim
49 words
A process according to claim 1, wherein Q is a radical of the formula ##STR39## wherein R 3 is C 1 -C 4 alkyl or phenyl, R 4 is hydrogen, C 1 -C 4 alkyl or cyanoethyl, and Z is hydrogen, chlorine, methyl or C 1 -C 2 alkoxy.
Claim 10
Dependent Claim
18 words
A process according to claim 1, which comprises the use of the dye salt of the formula ##STR40##
Claim 11
Dependent Claim
18 words
A process according to claim 1, which comprises the use of the dye salt of the formula ##STR41##
Claim 12
Dependent Claim
18 words
A process according to claim 1, which comprises the use of the dye salt of the formula ##STR42##
Claim 13
Dependent Claim
22 words
Spin-dyed fibres of polymers of acrylonitrile or of copolymers containing predominantly acrylonitrile, which fibres contain a dye salt according to claim 1.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1986-05-09 | 1986-11-08 | 1987-05-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1990-05-09 | 1990-11-08 | 1991-05-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1994-05-09 | 1994-11-08 | 1995-05-10 | $7700.00 | Window Closed / Lapsed |