Patent US3694475A successfully refreshed from Google Patents.
US3694475A
Expired / Lapsed
US
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Titanium compounds
Assignee: British Titan Products Co Ltd
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Filing: 1970-03-09
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Granted: 1972-09-26
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Expires: 1990-03-09
Abstract
Abstract A titanium chelate useful as a gelling or stabilizing agent for aqueous suspensions which is the reaction product of monoethanolamine, a titanium orthoester and at least one other chelating agent. The other chelating agent is selected from alkanolamine other than monoethanolamine, a beta-diketone or alpha-hydroxy carboxylic acids.
Inventors
- 👤 David Whiteley Brook
- 👤 Raymond Ward
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 04:32
CPC Classifications
C; C07; C07F; C07F7/00; C07F7/003
Claims Analysis
Total Claims: 14
Claim 1
Independent Claim
38 words
A titanium chelate according to claim 1 in which the ratio of the number of moles of Ti to the total number of moles of the monoethanolamine and the other chelating agent is from 1:1 to 1: 4.
Claim 2
Dependent Claim
43 words
A titanium chelate according to claim 2 in which the other chelating agent is an alkanolamine other than monoethanolamine and the ration of the number of moles of the other alkanolamine to the number of moles of monoethanolamine is from 50:1 to 1:10.
Claim 3
Dependent Claim
27 words
A titanium chelate according to claim 3 in which the molar ratio of monoethanolamine to other alkanolamine to the titanium orthoester is from 0.75-1.5 : 0.5-1.5 :1.
Claim 4
Dependent Claim
39 words
A titanium chelate according to claim 2 in which the other chelating agent is a beta-diketone and the ratio of the number of moles of the beta-diketone to the number of moles of monoethanolamine is from 4:1 to 1:4.
Claim 5
Dependent Claim
22 words
A titanium chelate according to claim 5 in which the molar ratio of monoethanolamine to beta-diketone to titanium orthoester is from 1:1:1
Claim 6
Dependent Claim
43 words
A titanium chelate according to claim 2 in which the other chelating agent is an alpha-hydroxy carboxylic acid and the ratio of the number of moles of the carboxylic acid to the number of moles of the monoethanolamine is from 5:1 to 1:5.
Claim 7
Dependent Claim
24 words
A titanium chelate according to claim 7 in which the molar ratio of the monoethanolamine to alpha-hydroxy carboxylic acid to titanium orthoester is 2:1:1.
Claim 8
Dependent Claim
19 words
A titanium chelate according to claim 1 in which the R group contains from two to four carbon atoms.
Claim 9
Dependent Claim
20 words
A titanium chelate according to claim 1 in which the alkanolamine other than monoethanolamine contains three or more carbon atoms.
Claim 10
Dependent Claim
17 words
A titanium chelate according to claim 7 in which the alpha-hydroxy acid is a hydroxy monocarboxylic acid.
Claim 11
Dependent Claim
18 words
A titanium chelate according to claim 1 in which the alpha-hydroxy carboxylic acid is a hydroxy dicarboxylic acid.
Claim 12
Dependent Claim
33 words
A method of preparing a titanium chelate according to claim 1 in which the monoethanolamine and other chelating agent are mixed in the desired proportions to which is then added a titanium orthoester.
Claim 13
Dependent Claim
35 words
A method of preparing a titanium chelate according to claim 1 in which either the monoethanolamine or the other chelating agent are reacted with the titanium orthoester to which is then added the remaining ingredient.
Claim 14
Dependent Claim
17 words
A titanium chelate according tO claim 8 in which the alpha-hydroxy acid is a hydroxy monocarboxylic acid.
References Cited (Backward Citations)
US2824114A
Cited
US3028297A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1975-09-26 | 1976-03-27 | 1976-09-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-09-26 | 1980-03-27 | 1980-09-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-09-26 | 1984-03-27 | 1984-09-26 | $7700.00 | Window Closed / Lapsed |