US4005066A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Isotridecylammonium salts of chromium or cobalt 1:2 complex azo dyes
Assignee: BASF SE
•
Filing: 1974-06-26
•
Granted: 1977-01-25
•
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 10:49
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.
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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 |