Patent US4005066A successfully refreshed from Google Patents.
US4005066A
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Isotridecylammonium salts of chromium or cobalt 1:2 complex azo dyes
Assignee: BASF SE
•
Filing: 1974-06-26
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Granted: 1977-01-25
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Expires: 1994-06-26
Abstract
Abstract Isotridecylammonium salts of chromium or cobalt 1:2 complex azo dyes, their production and their use as colorants for printing inks and surface coatings. The salts are distinguished by particularly good solubility in organic solvents.
Inventors
- 👤 Peter Gottschalk
- 👤 Alfred Schoellig
- 👤 Guenther Riedel
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 14:11
CPC Classifications
C; C09; C09B; C09B45/00; C09B45/48; C09B69/00; C09B69/02; C09B69/04
Claims Analysis
Total Claims: 8
Claim 1
Independent Claim
12 words
An isotridecylammonium salt of a chromium or cobalt 1:2 complex azo dye.
Claim 2
Dependent Claim
12 words
An isotridecylammonium salt of a chromium or cobalt 1:2 complex azo dye.
Claim 3
Dependent Claim
97 words
A mixture of isotridecylammonium salts of a chromium or cobalt 1:2 complex azo dye said salt mixture being obtained by reaction of a chromium or cobalt 1:2 complex azo dye with a mixture of isotridecylamines which in turn have been prepared by the reaction of ammonia with a mixture of primary C 13 alcohols having a boiling point range of 250° to 265° C., a density of d 4 20 ° of about 0.845, a refractive index n D 20 of 1.448, a setting point of -66° C. and a viscosity at 20° C. of 40.5 centipoises.
Claim 4
Dependent Claim
97 words
A mixture of isotridecylammonium salts of a chromium or cobalt 1:2 complex azo dye said salt mixture being obtained by reaction of a chromium or cobalt 1:2 complex azo dye with a mixture of isotridecylamines which in turn have been prepared by the reaction of ammonia with a mixture of primary C 13 alcohols having a boiling point range of 250° to 265° C., a density of d 4 20 ° of about 0.845, a refractive index n D 20 of 1.448, a setting point of -66° C. and a viscosity at 20° C. of 40.5 centipoises.
Claim 5
Dependent Claim
12 words
The salt claimed in claim 1 of a chromium 1:2 complex dye.
Claim 6
Dependent Claim
12 words
The salt claimed in claim 1 of a cobalt 1:2 complex dye.
Claim 7
Dependent Claim
12 words
The salt claimed in claim 2 of a chromium 1:2 complex dye.
Claim 8
Dependent Claim
12 words
The salt claimed in claim 2 of a cobalt 1:2 complex dye.
References Cited (Backward Citations)
US1796058A
Cited
US2038298A
Cited
US2095077A
Cited
US2215105A
Cited
DE743848C
Cited
US2565898A
Cited
US2555603A
Cited
US2628960A
Cited
US2773056A
Cited
US2814614A
Cited
US2826573A
Cited
US2937165A
Cited
US2970137A
Cited
GB944409A
Cited
US3406162A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1980-01-25 | 1980-07-26 | 1981-01-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1984-01-25 | 1984-07-26 | 1985-01-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1988-01-25 | 1988-07-26 | 1989-01-25 | $7700.00 | Window Closed / Lapsed |