US4172944A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Water insoluble styryl dyestuffs having hetero-aryl methylene substituent
Assignee: Bayer AG
•
Filing: 1976-10-07
•
Granted: 1979-10-30
•
Expires: 1996-10-07
Abstract
Abstract The invention relates to water-insoluble styryl dyestuffs of the formula ##STR1## wherein B is a bridge member, R is hydrogen, alkyl, aryl or the remaining members of a partially saturated ring fused to the ring "a", Z is preferably CN and n denotes the numbers 3 to 5. The dyestuffs are outstandingly suitable for the dyeing of hydrophobic fibre materials in yellow shades. The dyeings are distinguished by excellent fastness to light.
Inventors
- 👤 Hermann Beecken
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 04:44
CPC Classifications
C; C09; C09B; C09B23/00; C09B23/14; C09B23/143; D; D06; D06P; D06P1/00; D06P1/16
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
143 words
Water-insoluble styryl dyestuff of the formula ##STR41## wherein B is C 2 -C 5 -alkylene; C 2 -C 5 -alkylene interrupted by an oxygen atom or sulphur; or the foregoing substituted by C 1 - to C 4 -alkoxy, C 1 -C 4 -alkenyloxy, benzyloxy or phenoxy; n is 3 to 5; wherein the ring "b" is further unsubstituted or substituted by C 1 - to C 4 -alkyl, C 1 - to C 4 -alkoxy, --CN or --COOH; Y 1 is hydrogen, C 1 - to C 4 -alkyl, C 1 - to C 4 -alkoxy, CF 3 , C 2 - to C 4 -alkanoylamino, phenoxy, F, Cl or Br; and R and Y 2 conjointly form the missing members of an unsubstituted 1,2,3,4-tetrahydroquinoline ring or a 1,2,3,4-tetrahydroquinoline ring mono-, di- or tri-substituted with methyl or ethyl or mono-substituted with chlorine.
Claim 2
Dependent Claim
143 words
Water-insoluble styryl dyestuff of the formula ##STR41## wherein B is C 2 -C 5 -alkylene; C 2 -C 5 -alkylene interrupted by an oxygen atom or sulphur; or the foregoing substituted by C 1 - to C 4 -alkoxy, C 1 -C 4 -alkenyloxy, benzyloxy or phenoxy; n is 3 to 5; wherein the ring "b" is further unsubstituted or substituted by C 1 - to C 4 -alkyl, C 1 - to C 4 -alkoxy, --CN or --COOH; Y 1 is hydrogen, C 1 - to C 4 -alkyl, C 1 - to C 4 -alkoxy, CF 3 , C 2 - to C 4 -alkanoylamino, phenoxy, F, Cl or Br; and R and Y 2 conjointly form the missing members of an unsubstituted 1,2,3,4-tetrahydroquinoline ring or a 1,2,3,4-tetrahydroquinoline ring mono-, di- or tri-substituted with methyl or ethyl or mono-substituted with chlorine.
Claim 3
Dependent Claim
167 words
Water-insoluble styryl dyestuff of the formula ##STR42## wherein X is C 1 - to C 4 -alkyl, C 1 - to C 4 -alkoxy, CN or hydrogen; n is 4-5; B' is --C 2 H 4 --, --C 3 H 6 --, --C 4 H 8 --, --CH(CH 3 )CH 2 --, --CH(C 6 H 5 )CH 2 --, --CH(CH 2 OCH 3 )CH 2 --, --CH(CH 2 OC 2 H 5 )CH 2 --, --CH(CH 2 OCH 2 CH═CH 2 )CH 2 --, --CH(CH 2 OC 6 H 5 )CH 2 -- or --CH(CH 2 OCH 2 C 6 H 5 )CH 2 --; Y is hydrogen, C 1 - to C 4 -alkyl, C 1 - to C 4 -alkoxy, CF 3 , C 2 - to C 4 -alkanoylamino, phenoxy, F, Cl or Br; R' and Y 2 conjointly form the missing members of an unsubstituted 1,2,3,4-tetrahydroquinoline ring or a 1,2,3,4-tetrahydroquinoline ring mono-, di- or tri-substituted with methyl or ethyl, or mono-substituted with chloro.
Claim 4
Dependent Claim
167 words
Water-insoluble styryl dyestuff of the formula ##STR42## wherein X is C 1 - to C 4 -alkyl, C 1 - to C 4 -alkoxy, CN or hydrogen; n is 4-5; B' is --C 2 H 4 --, --C 3 H 6 --, --C 4 H 8 --, --CH(CH 3 )CH 2 --, --CH(C 6 H 5 )CH 2 --, --CH(CH 2 OCH 3 )CH 2 --, --CH(CH 2 OC 2 H 5 )CH 2 --, --CH(CH 2 OCH 2 CH═CH 2 )CH 2 --, --CH(CH 2 OC 6 H 5 )CH 2 -- or --CH(CH 2 OCH 2 C 6 H 5 )CH 2 --; Y is hydrogen, C 1 - to C 4 -alkyl, C 1 - to C 4 -alkoxy, CF 3 , C 2 - to C 4 -alkanoylamino, phenoxy, F, Cl or Br; R' and Y 2 conjointly form the missing members of an unsubstituted 1,2,3,4-tetrahydroquinoline ring or a 1,2,3,4-tetrahydroquinoline ring mono-, di- or tri-substituted with methyl or ethyl, or mono-substituted with chloro.
Claim 5
Dependent Claim
17 words
Water-insoluble styryl dyestuff of claim 2 wherein Y 1 is hydrogen or methyl; and B' is ethylene.
Claim 6
Dependent Claim
10 words
Styryl dyestuff according to claim 2, of the formula ##STR43##
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) | 1982-10-29 | 1983-04-30 | 1983-10-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1986-10-29 | 1987-04-30 | 1987-10-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1990-10-29 | 1991-04-30 | 1991-10-30 | $7700.00 | Window Closed / Lapsed |