US5248787A
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Volatile organic barium, strontium and calcium compounds
Assignee: Innospec Ltd
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Filing: 1990-06-05
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Granted: 1993-09-28
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Expires: 2010-06-05
Abstract
Abstract Volatile organic barium, strontium and calcium compounds, which consist of the complex of a barium-, strontium- or calcium-β diketonate and one or more coordinating ligands, characterized in that at least one coordinating ligand of the barium or strontium compound is formed by a neutral oxygen or a neutral nitrogen donor ligand, or one of the coordinating ligands of the calcium compound is formed by a neutral oxygen donor ligand.
Inventors
- 👤 Klaas Timmer
- 👤 Carolus I. M. A. Spee
- 👤 Adrianus Mackor
- 👤 Harmen A. Meinema
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 22:40
CPC Classifications
C; C23; C23C; C23C16/00; C23C16/22; C23C16/30; C23C16/40; C23C16/404; C07; C07F; C07F3/00; C07F3/003; C23C16/408; C30; C30B; C30B25/00; C30B25/02; C30B29/00; C30B29/10; C30B29/16; C30B29/22
Claims Analysis
Total Claims: 7
Claim 1
Independent Claim
45 words
Volatile organic barium, strontium and calcium compounds, comprising a complex of a barium-, strontium- or calcium-β-diketonate and one or more coordinating ligands, characterized in that at least one coordinating ligand of the barium, strontium or calcium compound is formed by a neutral oxygen donor ligand.
Claim 2
Dependent Claim
45 words
Volatile organic barium, strontium and calcium compounds, comprising a complex of a barium-, strontium- or calcium-β-diketonate and one or more coordinating ligands, characterized in that at least one coordinating ligand of the barium, strontium or calcium compound is formed by a neutral oxygen donor ligand.
Claim 3
Dependent Claim
29 words
Organic barium, strontium and calcium compounds according to claim 1, characterized in that the neutral oxygen donor ligand is an acyclic ether, a cyclic ether or a glycol ether.
Claim 4
Dependent Claim
59 words
Organic barium, strontium and calcium compounds according to claim 2, characterized in that the cyclic ether is (CH 2 CH 2 O) 6 , and the glycol ether is CH 3 O(CH 2 CH 2 o) n CH 3 or HO(CH 2 CH 2 O) n CH 3 in which n is 1, 2, 3, 4, 5 or 6.
Claim 5
Dependent Claim
40 words
Organic barium, strontium and calcium compounds according to one of the claims 1-3, characterized in that the side chains R', R" of the β-diketonate R'C(O)CHC(O)R" are alkyl groups containing 1-4 carbon atoms or substituted alkyl groups containing 1-3 carbon atoms.
Claim 6
Dependent Claim
22 words
Organic barium, strontium and calcium compounds according to claim 4, characterized in that a substituted alkyl group contains or more fluorine atoms.
Claim 7
Dependent Claim
27 words
Organic barium, strontium and calcium compounds according to claim 5, characterized in that a substituted alkyl group is either CF 3 or n--C 3 F 7 .
References Cited (Backward Citations)
EP0405634A2
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1996-09-27 | 1997-03-29 | 1997-09-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2000-09-27 | 2001-03-29 | 2001-09-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2004-09-27 | 2005-03-29 | 2005-09-28 | $7700.00 | Window Closed / Lapsed |