US3989692A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Reactive dyestuffs
Assignee: Bayer AG
•
Filing: 1974-07-19
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Granted: 1976-11-02
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Expires: 1994-07-19
Abstract
Abstract Phthalocyanine reactive dyestuffs of the formula ##SPC1## Wherein Pc, R 1 , R 2 , R 3 -R 5 , a, b and c and Z have the meaning given in the description. They are outstandingly suitable for dyeing and printing materials containing cellulose, such as natural and regenerated cellulose, in accordance with the techniques known for the purpose. The new dyestuffs are also suitable for dyeing materials containing amide groups, such as wool, silk and synthetic polyamides. Dyeings obtained on textile cellulose, in particular, distinguish themselves by very good fastness properties, especially fastness to light and to wet processing.
Inventors
- 👤 Horst Jager
- 👤 Manfred Groll
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 15:38
CPC Classifications
C; C09; C09B; C09B62/00; C09B62/002; C09B62/016
Claims Analysis
Total Claims: 8
Claim 1
Independent Claim
75 words
Phthalocyanine reactive dyestuff of the formula ##SPC14## wherein Pc is selected from the group consisting of phthalocyanine, copper phthalocyanine, cobalt phthalocyanine and nickel phthalocyanine where a and c each is a number from 1 to 3 and b is a number from 0 to 2 provided that sum of a, b and c is not greater than 4; and Z represents a fiber-reactive group selected from the group consisting of dihalogenpyrimidinyl, trihalogenpyrimidinyl, 2-methyl-sulfonyl-5-chloro-6-methylpyrimidinyl and 2,3-dichloroquinoxaline-6-carbonyl.
Claim 2
Dependent Claim
75 words
Phthalocyanine reactive dyestuff of the formula ##SPC14## wherein Pc is selected from the group consisting of phthalocyanine, copper phthalocyanine, cobalt phthalocyanine and nickel phthalocyanine where a and c each is a number from 1 to 3 and b is a number from 0 to 2 provided that sum of a, b and c is not greater than 4; and Z represents a fiber-reactive group selected from the group consisting of dihalogenpyrimidinyl, trihalogenpyrimidinyl, 2-methyl-sulfonyl-5-chloro-6-methylpyrimidinyl and 2,3-dichloroquinoxaline-6-carbonyl.
Claim 3
Dependent Claim
12 words
Phthalocyanine reactive dyestuff of claim 1, wherein Z represents a 2,6-difluoro-5-chloro-4-pyrimidinyl radical.
Claim 4
Dependent Claim
8 words
Dyestuff of claim 1 of the formula ##SPC15##
Claim 5
Dependent Claim
8 words
Dyestuff of claim 1 of the formula ##SPC16##
Claim 6
Dependent Claim
8 words
Dyestuff of claim 1 of the formula ##SPC17##
Claim 7
Dependent Claim
8 words
Dyestuff of claim 1 of the formula ##SPC18##
Claim 8
Dependent Claim
8 words
Dyestuff of claim 1 of the formula ##SPC19##
References Cited (Backward Citations)
US3126369A
Cited
US3133059A
Cited
US3082207A
Cited
US3268548A
Cited
US3515713A
Cited
US3511826A
Cited
US3232931A
Cited
US3336283A
Cited
US3184284A
Cited
US3458496A
Cited
US3627749A
Cited
US3342797A
Cited
US3445449A
Cited
GB1121711A
Cited
US3669951A
Cited
US3625936A
Cited
US3674783A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1979-11-02 | 1980-05-03 | 1980-11-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1983-11-02 | 1984-05-03 | 1984-11-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1987-11-02 | 1988-05-03 | 1988-11-02 | $7700.00 | Window Closed / Lapsed |