US4609746A
Expired / Lapsed
US
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Titanium chelates and preparation of these chelates
Assignee: Dynamit Nobel AG
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Filing: 1984-10-09
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Granted: 1986-09-02
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Expires: 2004-10-09
Abstract
Abstract Organic titanium chelates which contain only acetylacetone and triethanolamine as ligands and chelating agents and are soluble in glycol ethers are disclosed. The addition of even a small amount of the glycol ether to these new substances improve the stability of their aqueous solutions in an extraordinary manner. Preferably, solutions of 50 to 80% of these new chelates are used, from which very dilute aqueous solutions, i.e., 1 to 5% of extraordinarily high stability can be made.
Inventors
- 👤 Dieter Barfurth
- 👤 Heinz Nestler
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 03:49
CPC Classifications
C; C09; C09D; C09D5/00; C09D5/02; C09D5/024; C07; C07F; C07F7/00; C07F7/28; C08; C08G; C08G63/00; C08G63/91; C08K; C08K5/00; C08K5/0091
Claims Analysis
Total Claims: 17
Claim 1
Independent Claim
38 words
A chelate of tetravalent titanium, comprising only acetyl acetone and triethanolamine as ligands with a molar ratio of the two chelating agents of 1 to 2:1 to 0.67 and a total of 4 esterifiable OH-groups per titanium atom.
Claim 2
Dependent Claim
38 words
A chelate of tetravalent titanium, comprising only acetyl acetone and triethanolamine as ligands with a molar ratio of the two chelating agents of 1 to 2:1 to 0.67 and a total of 4 esterifiable OH-groups per titanium atom.
Claim 3
Dependent Claim
15 words
The chelate of claim 1, wherein the molar ratio of acetylacetone and triethanolamine is 1:1.
Claim 4
Dependent Claim
21 words
The chelate of claim 1 in solution in glycol ethers, wherein the chelate content is between 10 and 99%, by weight.
Claim 5
Dependent Claim
21 words
The chelate of claim 2 in solution in glycol ethers, wherein the chelate content is between 10 and 99%, by weight.
Claim 6
Dependent Claim
26 words
The chelate solution of claim 3 further comprising water as solvent in such an amount that the chelate content is between 1 and 5% by weight.
Claim 7
Dependent Claim
26 words
The chelate solution of claim 4 further comprising water as solvent in such an amount that the chelate content is between 1 and 5% by weight.
Claim 8
Independent Claim
52 words
A method of preparing a titanium chelate solution comprising: reacting a tetraalkoxytitanate(IV) with acetylacetone and triethanolamine in a stoichiometric ratio between 1:1 and 2:0.67 to form a reaction product and heating the reaction product in the presence of glycol ethers until the alcohol formed in the reaction has largely been distilled out.
Claim 9
Independent Claim
52 words
A method of preparing a titanium chelate solution comprising: reacting a tetraalkoxytitanate(IV) with acetylacetone and triethanolamine in a stoichiometric ratio between 1:1 and 2:0.67 to form a reaction product and heating the reaction product in the presence of glycol ethers until the alcohol formed in the reaction has largely been distilled out.
Claim 10
Independent Claim
43 words
A method of preparing a titanium chelate solution comprising mixing dialkoxy-titanium-bis-(acetylacetonate) and dialkoxy-bis-(triethanolamino)-titanate to form a mixture and heating the mixture in the presence of glycol ether until the alcohol that has formed and any alcohol present as solvent are largely distilled out.
Claim 11
Independent Claim
43 words
A method of preparing a titanium chelate solution comprising mixing dialkoxy-titanium-bis-(acetylacetonate) and dialkoxy-bis-(triethanolamino)-titanate to form a mixture and heating the mixture in the presence of glycol ether until the alcohol that has formed and any alcohol present as solvent are largely distilled out.
Claim 12
Dependent Claim
11 words
A product produced by reacting tetraalkoxy titanate(IV) with acetylcetone and triethanolamine.
Claim 13
Dependent Claim
11 words
A product produced by reacting tetraalkoxy titanate(IV) with acetylcetone and triethanolamine.
Claim 14
Dependent Claim
8 words
A product produced by reacting dialkoxydiacetyl-acetotitanate and dialkoxy-bis-(triethanolamine)-titanate.
Claim 15
Dependent Claim
8 words
A product produced by reacting dialkoxydiacetyl-acetotitanate and dialkoxy-bis-(triethanolamine)-titanate.
Claim 16
Dependent Claim
21 words
The chelate of claim 1 in solution in glycol ethers wherein the chelate content is between 50 and 80% by weight.
Claim 17
Dependent Claim
21 words
The chelate of claim 2 in solution in glycol ethers wherein the chelate content is between 50 and 80% by weight.
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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) | 1989-09-01 | 1990-03-03 | 1990-09-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1993-09-01 | 1994-03-03 | 1994-09-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1997-09-01 | 1998-03-03 | 1998-09-02 | $7700.00 | Window Closed / Lapsed |