DD283632A5 - Verfahren zur herstellung von alkandiphosphonsaeuren und deren salzen - Google Patents
Verfahren zur herstellung von alkandiphosphonsaeuren und deren salzen Download PDFInfo
- Publication number
- DD283632A5 DD283632A5 DD89325954A DD32595489A DD283632A5 DD 283632 A5 DD283632 A5 DD 283632A5 DD 89325954 A DD89325954 A DD 89325954A DD 32595489 A DD32595489 A DD 32595489A DD 283632 A5 DD283632 A5 DD 283632A5
- Authority
- DD
- German Democratic Republic
- Prior art keywords
- acid
- acids
- atoms
- general formula
- radical
- Prior art date
Links
Classifications
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07F—ACYCLIC, CARBOCYCLIC OR HETEROCYCLIC COMPOUNDS CONTAINING ELEMENTS OTHER THAN CARBON, HYDROGEN, HALOGEN, OXYGEN, NITROGEN, SULFUR, SELENIUM OR TELLURIUM
- C07F9/00—Compounds containing elements of Groups 5 or 15 of the Periodic Table
- C07F9/02—Phosphorus compounds
- C07F9/28—Phosphorus compounds with one or more P—C bonds
- C07F9/38—Phosphonic acids [RP(=O)(OH)2]; Thiophosphonic acids ; [RP(=X1)(X2H)2(X1, X2 are each independently O, S or Se)]
- C07F9/3804—Phosphonic acids [RP(=O)(OH)2]; Thiophosphonic acids ; [RP(=X1)(X2H)2(X1, X2 are each independently O, S or Se)] not used, see subgroups
- C07F9/3839—Polyphosphonic acids
- C07F9/386—Polyphosphonic acids containing hydroxy substituents in the hydrocarbon radicals
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Biochemistry (AREA)
- General Health & Medical Sciences (AREA)
- Molecular Biology (AREA)
- Cosmetics (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE3805644A DE3805644A1 (de) | 1988-02-24 | 1988-02-24 | 1-hydroxy-(omega)-(alkyl - bzw. arylphosphinico-)alkan-1,1-diphosphonsaeuren, deren salze sowie verfahren zur herstellung dieser verbindungen |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| DD283632A5 true DD283632A5 (de) | 1990-10-17 |
Family
ID=6347983
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DD89325954A DD283632A5 (de) | 1988-02-24 | 1989-02-22 | Verfahren zur herstellung von alkandiphosphonsaeuren und deren salzen |
Country Status (5)
| Country | Link |
|---|---|
| US (1) | US4960928A (fr) |
| EP (1) | EP0330022A3 (fr) |
| JP (1) | JPH01249787A (fr) |
| DD (1) | DD283632A5 (fr) |
| DE (1) | DE3805644A1 (fr) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5772893A (en) * | 1996-08-13 | 1998-06-30 | Nalco Chemical Company | Ether diphosphonate scale inhibitors |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4440646A (en) * | 1965-08-24 | 1984-04-03 | Plains Chemical Development Co. | Chelation |
| US3400148A (en) * | 1965-09-23 | 1968-09-03 | Procter & Gamble | Phosphonate compounds |
| DE3805663A1 (de) * | 1988-02-24 | 1989-09-07 | Henkel Kgaa | Oxaalkanpolyphosphonsaeuren, ihre verwendung als thresholder sowie diese verbindungen enthaltende, komplexierend wirkende zusammensetzungen |
-
1988
- 1988-02-24 DE DE3805644A patent/DE3805644A1/de not_active Withdrawn
-
1989
- 1989-02-09 US US07/308,840 patent/US4960928A/en not_active Expired - Fee Related
- 1989-02-10 EP EP89102298A patent/EP0330022A3/fr not_active Withdrawn
- 1989-02-21 JP JP1039484A patent/JPH01249787A/ja active Pending
- 1989-02-22 DD DD89325954A patent/DD283632A5/de not_active IP Right Cessation
Also Published As
| Publication number | Publication date |
|---|---|
| EP0330022A3 (fr) | 1990-08-16 |
| EP0330022A2 (fr) | 1989-08-30 |
| JPH01249787A (ja) | 1989-10-05 |
| DE3805644A1 (de) | 1989-09-07 |
| US4960928A (en) | 1990-10-02 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| ENJ | Ceased due to non-payment of renewal fee |