US4354940A
Expired / Lapsed
US
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Sodium alumoglucoheptonate, a process for its preparation and its use as sequestering agent
Assignee: Lek Pharmaceuticals dd
•
Filing: 1981-07-09
•
Granted: 1982-10-19
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Expires: 2001-07-09
Abstract
Abstract Sodium alumoglucoheptonate, process of preparing from sodium glucoheptonate and sodium aluminate, and use of sodium alumoglucoheptonate as a sequestering agent.
Inventors
- 👤 Peter Suhac
- 👤 Natasa Hafner-Milac
- 👤 Bozidar Dolenc
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 22:38
CPC Classifications
C; C02; C02F; C02F5/00; C02F5/08; C02F5/10; C07; C07F; C07F5/00; C07F5/06; C07F5/069
Claims Analysis
Total Claims: 22
Claim 1
Independent Claim
79 words
A method for washing bottles, which comprises contacting the bottles with an aqueous solution containing sodium alumoglucoheptonate of the formula: ##STR4## wherein Z represents a residue of the formula ##STR5## wherein R represents a residue of a molecule of sodium D-glycero-D-gulo-heptonate or of sodium D-glycero-D-ido-heptonate, and R 1 and R 2 represent moieties of a molecule of sodium D-glycero-D-gulo-heptonate or of sodium D-glycero-D-ido-heptonate, and Y represents a hydroxy group or three Y are joined to represent the residue Z.
Claim 2
Independent Claim
79 words
A method for washing bottles, which comprises contacting the bottles with an aqueous solution containing sodium alumoglucoheptonate of the formula: ##STR4## wherein Z represents a residue of the formula ##STR5## wherein R represents a residue of a molecule of sodium D-glycero-D-gulo-heptonate or of sodium D-glycero-D-ido-heptonate, and R 1 and R 2 represent moieties of a molecule of sodium D-glycero-D-gulo-heptonate or of sodium D-glycero-D-ido-heptonate, and Y represents a hydroxy group or three Y are joined to represent the residue Z.
Claim 3
Independent Claim
57 words
A method for washing bottles which comprises contacting the bottles with an aqueous solution containing sodium alumoglucoheptonate obtained by adding a solution of sodium aluminate to a solution of sodium glucoheptonate in such a quantity that the ratio between the number of aluminum atoms and the number of sodium glucoheptonate molecules amounts to from 0.50:1 to 1.50:1.
Claim 4
Independent Claim
57 words
A method for washing bottles which comprises contacting the bottles with an aqueous solution containing sodium alumoglucoheptonate obtained by adding a solution of sodium aluminate to a solution of sodium glucoheptonate in such a quantity that the ratio between the number of aluminum atoms and the number of sodium glucoheptonate molecules amounts to from 0.50:1 to 1.50:1.
Claim 5
Independent Claim
78 words
A method for sequestering iron ions or calcium ions which comprises contacting said ions with sodium alumoglucoheptonate of the formula: ##STR6## wherein Z represents a residue of the formula ##STR7## wherein R represents a residue of a molecule of sodium D-glycero-D-gulo-heptonate or of sodium D-glycero-D-ido-heptonate, and R 1 and R 2 represent moieties of a molecule of sodium D-glycero-D-gulo-heptonate or of sodium D-glycero-D-ido-heptonate, Y represents a hydroxy group or three Y are joined to represent the residue Z.
Claim 6
Independent Claim
78 words
A method for sequestering iron ions or calcium ions which comprises contacting said ions with sodium alumoglucoheptonate of the formula: ##STR6## wherein Z represents a residue of the formula ##STR7## wherein R represents a residue of a molecule of sodium D-glycero-D-gulo-heptonate or of sodium D-glycero-D-ido-heptonate, and R 1 and R 2 represent moieties of a molecule of sodium D-glycero-D-gulo-heptonate or of sodium D-glycero-D-ido-heptonate, Y represents a hydroxy group or three Y are joined to represent the residue Z.
Claim 7
Independent Claim
57 words
A method for sequestering iron ions or calcium ions which comprises contacting said ions with sodium alumoglucoheptonate obtained by adding a solution of sodium aluminate to a solution of sodium glucoheptonate in such a quantity that the ratio between the number of aluminum atoms and the number of sodium glucoheptonate molecules amounts to from 0.50:1 to 1.50:1.
Claim 8
Independent Claim
57 words
A method for sequestering iron ions or calcium ions which comprises contacting said ions with sodium alumoglucoheptonate obtained by adding a solution of sodium aluminate to a solution of sodium glucoheptonate in such a quantity that the ratio between the number of aluminum atoms and the number of sodium glucoheptonate molecules amounts to from 0.50:1 to 1.50:1.
Claim 9
Dependent Claim
20 words
The method of claim 3 or claim 4 wherein said sodium alumoglucoheptonate is in the form of an aqueous solution.
Claim 10
Dependent Claim
14 words
The method of claim 3 or claim 4 wherein said ions include iron ions.
Claim 11
Dependent Claim
14 words
The method of claim 3 or claim 4 wherein said ions include calcium ions.
Claim 12
Dependent Claim
16 words
The method of claim 1 or claim 2 wherein said solution contains 1 to 5% NaOH.
Claim 13
Dependent Claim
17 words
The method of claim 1 or claim 4 wherein Z represents a residue of the formula: ##STR8##
Claim 14
Dependent Claim
12 words
The process of claim 9 wherein each Y represents a hydroxy group.
Claim 15
Dependent Claim
19 words
The process of claim 9 wherein three Y groups are joined to represent a residue of the formula: ##STR9##
Claim 16
Dependent Claim
19 words
The process of claim 9 wherein three Y groups are joined to represent a residue of the formula: ##STR10##
Claim 17
Dependent Claim
17 words
The method of claim 1 or claim 4 wherein Z represents a residue of the formula: ##STR11##
Claim 18
Dependent Claim
12 words
The process of claim 13 wherein each Y represents a hydroxy group.
Claim 19
Dependent Claim
19 words
The process of claim 13 wherein three Y groups are joined to represent a residue of the formula: ##STR12##
Claim 20
Dependent Claim
15 words
The method of claim 1 or claim 4 wherein each Y represents a hydroxy group.
Claim 21
Dependent Claim
22 words
The method of claim 1 or claim 4 wherein three Y groups are joined to represent a residue of the formula: ##STR13##
Claim 22
Dependent Claim
22 words
The method of claim 1 or claim 4 wherein three Y groups are joined to represent a residue of the formula: ##STR14##
References Cited (Backward Citations)
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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) | 1985-10-18 | 1986-04-19 | 1986-10-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1989-10-18 | 1990-04-19 | 1990-10-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1993-10-18 | 1994-04-19 | 1994-10-19 | $7700.00 | Window Closed / Lapsed |