US3317510A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of preparing polyphosphoruspolyol esters
Assignee: Monsanto Co
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Filing: 1965-10-20
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Granted: 1967-05-02
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Expires: 1985-10-20
Abstract
No abstract record available.
Inventors
- 👤 Gail H Birum
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 21:23
CPC Classifications
C; C08; C08G; C08G18/00; C08G18/06; C08G18/28; C08G18/30; C08G18/38; C08G18/3878; C08G18/388; C07; C07F; C07F9/00; C07F9/02; C07F9/28; C07F9/48; C08G18/40; C08G18/42; C08G18/46; C08G18/4684; C08G18/48; C08G18/50; C08G18/5075; C08G18/5078; C08G18/60; C08G18/606; C08G18/64; C08G18/6461; C08G79/00; C08G79/02; C08G79/04
Claims Analysis
Total Claims: 3
Claim 1
Independent Claim
48 words
A PROCESS FOR PREPARING A PHOSPHORUS-CONTAINING POLYOL WHICH COMPRISES HEATING TO 50%-200%C. A MIXTURE OF (A) AN ORGANIC POLYOL HAVING A MOLECULAR WEITHT OF FROM 62 TO ABOUT 5000 AND FROM 2 TO ABOUT 10 HYDROXYL GROUPS PER MOLECULE WITH (B) A TRIVALENT PHOSPHORUS ESTER OF THE FORMULA
Claim 2
Dependent Claim
48 words
A PROCESS FOR PREPARING A PHOSPHORUS-CONTAINING POLYOL WHICH COMPRISES HEATING TO 50%-200%C. A MIXTURE OF (A) AN ORGANIC POLYOL HAVING A MOLECULAR WEITHT OF FROM 62 TO ABOUT 5000 AND FROM 2 TO ABOUT 10 HYDROXYL GROUPS PER MOLECULE WITH (B) A TRIVALENT PHOSPHORUS ESTER OF THE FORMULA
Claim 3
Dependent Claim
85 words
A PROCESS AS DESCRIBED IN CLAIM 1 WHEREIN THE POLYOL (A) USED IS A PROPYLENE OXIDE ADDUCT OF A CARBOHYDRATE MOLECULE CONTAINING UP TO TWO SACCHARIDE UNITS, AND THE POLYPHOSPHORUS ESTER (B) USED IS OBTAINED BY ADDING AN ALKANECARBOXALDEHYDE HAVING FROM 1 TO 17 CARBON ATOMS TO A MIXTURE OF A BIS(HALOALKYL) PHOSPHOROHALIDITE AND A TRIS(HALOALKYL) PHOSPHITE, WHEREIN THE HALIDITE IS SELECTED FROM THE GROUP CONSISTING OF -CHLORIDITE AND -BROMIDITE AND THE HALOALKYL IS SELECTED FROM THE GROUP CONSISTING OF CHLOROETHYL, CHLOROPROPYL, BROMOETHYL, AND BROMOPROPYL.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1970-05-01 | 1970-10-31 | 1971-05-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-05-01 | 1974-10-31 | 1975-05-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-05-01 | 1978-10-31 | 1979-05-02 | $7700.00 | Window Closed / Lapsed |