US3714211A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Complex trinuclear metal salts
Assignee: BASF SE
•
Filing: 1970-09-03
•
Granted: 1973-01-30
•
Expires: 1990-09-03
Abstract
Abstract Complex trinuclear metal salts, methods for the production of these salts by reaction of salts of aluminum or of aluminum and trivalent chromium, which contain monovalent anions, with acrylic acid and the amount of an alkaline reacting agent necessary for their neutralization or with salts or acrylic acid and a method of tanning using these metal salts.
Inventors
- 👤 H Erdmann
- 👤 F Miller
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 20:23
CPC Classifications
C; C07; C07F; C07F5/00; C07F5/06; C07F5/069
Claims Analysis
Total Claims: 19
Claim 1
Independent Claim
95 words
A complex trinuclear metal salt whose cation has the formula (Ma1 M(3 a)2 Rm(OH)(6 m)(H2O)6) ( )( )( ) where M1 denotes aluminum and M2 denotes trivalent chromium as the central atoms, R denotes the radical of acrylic acid twice combined between two metal atoms, a denotes an integer from 1 to 3 and m denotes an integer from 2 to 6 and which contains monovalent anions which do not make the complex metal salt insoluble, which anions are selected from the group consisting of chloride, bromide, iodide, perchlorate, nitrate, formate, acetate and propionate ions.
Claim 2
Dependent Claim
95 words
A complex trinuclear metal salt whose cation has the formula (Ma1 M(3 a)2 Rm(OH)(6 m)(H2O)6) ( )( )( ) where M1 denotes aluminum and M2 denotes trivalent chromium as the central atoms, R denotes the radical of acrylic acid twice combined between two metal atoms, a denotes an integer from 1 to 3 and m denotes an integer from 2 to 6 and which contains monovalent anions which do not make the complex metal salt insoluble, which anions are selected from the group consisting of chloride, bromide, iodide, perchlorate, nitrate, formate, acetate and propionate ions.
Claim 3
Dependent Claim
27 words
A complex trinuclear metal salt as claimed In claim 1 in which a in the formula of the cation denotes one of the integers 1 and 2.
Claim 4
Dependent Claim
18 words
A complex trinuclear metal salt as claimed in claim 2 which contains chloride ions as the monovalent anions.
Claim 5
Dependent Claim
73 words
A complex trinuclear metal salt whose cation has the formula (Al3Rm(OH)(6 m) (H2O)6) ( )( )( ) R denotes the radical of acrylic acid combined twice between two metal atoms, and m denotes one of the integers from 2 to 6, and which contains anions which do not make the complex metal salt insoluble, which anions are selected from the group consisting of chloride, bromide, iodide, perchlorate, nitrate, formate, acetate and propionate ions.
Claim 6
Dependent Claim
73 words
A complex trinuclear metal salt whose cation has the formula (Al3Rm(OH)(6 m) (H2O)6) ( )( )( ) R denotes the radical of acrylic acid combined twice between two metal atoms, and m denotes one of the integers from 2 to 6, and which contains anions which do not make the complex metal salt insoluble, which anions are selected from the group consisting of chloride, bromide, iodide, perchlorate, nitrate, formate, acetate and propionate ions.
Claim 7
Dependent Claim
18 words
A complex trinuclear metal salt as claimed in claim 4 which contains chloride ions as the monovalent anions.
Claim 8
Dependent Claim
2 words
(Al2Cr(H2C CH-COO)6(H2O)6)Cl3.
Claim 9
Dependent Claim
2 words
(Al2Cr(H2C CH-COO)6(H2O)6)Cl3.
Claim 10
Dependent Claim
2 words
(AlCr2(H2C CH-COO)4(OH)2(H2O)6)Cl3.
Claim 11
Dependent Claim
2 words
(AlCr2(H2C CH-COO)4(OH)2(H2O)6)Cl3.
Claim 12
Dependent Claim
2 words
(Al2Cr(H2C CH-COO)3(OH)3(2O)6)Cl3.
Claim 13
Dependent Claim
2 words
(Al2Cr(H2C CH-COO)3(OH)3(2O)6)Cl3.
Claim 14
Dependent Claim
2 words
(AlCr2(H2C CH-COO)6(H2O)6)Cl3.
Claim 15
Dependent Claim
2 words
(AlCr2(H2C CH-COO)6(H2O)6)Cl3.
Claim 16
Dependent Claim
2 words
(AlCr2(H2C CH-COO)2(OH)4(H2O)6)Cl3.
Claim 17
Dependent Claim
2 words
(AlCr2(H2C CH-COO)2(OH)4(H2O)6)Cl3.
Claim 18
Dependent Claim
2 words
(Al3(H2C CH-COO)3(OH)3(H2O)6)Cl3.
Claim 19
Dependent Claim
2 words
(Al3(H2C CH-COO)3(OH)3(H2O)6)Cl3.
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) | 1976-01-30 | 1976-07-31 | 1977-01-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-01-30 | 1980-07-31 | 1981-01-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-01-30 | 1984-07-31 | 1985-01-30 | $7700.00 | Window Closed / Lapsed |