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US2515024A
Expired / Lapsed
US
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Nonfoaming hydrocarbon oil compositions
Assignee: Gulf Research and Development Co
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Filing: 1946-09-11
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Granted: 1950-07-11
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Expires: 1966-09-11
Abstract
No abstract record available.
Inventors
- 👤 Charles E Trautman
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 20:26
CPC Classifications
C; C10; C10M; C10M171/00; C10M171/004; C10M2207/00; C10M2207/10; C10M2207/12; C10M2207/125; C10M2207/129; C10M2219/00; C10M2219/04; C10M2219/042; C10M2223/00; C10M2223/02; C10M2223/04; C10M2223/042; C10M2227/00; C10M2227/04; C10N; C10N2070/00; C10N2070/02
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
124 words
A HYDROCARBON OIL COMPOSITION, SUBSTANTIALLY RESISTANT TO FOAMING, CONSISTING ESSENTIALLY OF A HYDROCARBON OIL AND AN ORGANO-SILICON-PHOSPHORUS CONDENSATION PRODUCT IN WHICH SILICON IS LINKED TO PHOSPHORUS THROUGH AN OXYGEN ATOM AND WHICH IS OBTAINED BY REACTING A PHOSPHORUS COMPOUND SELECTED FROM THE CLASS CONSISTING OF ACID COMPOUNDS OF PHOSPHORUS AND ALKALI-METAL SALTS THEREOF WITH A SILICON HALIDE, AT LEAST ONE OF WHICH REACTANTS CONTAINS AT LEAST ONE ORGANIC SUBSTITUENT SELECTED FROM THE GROUP CONSISTING OF THE UNSUBSTITUTED AND HALOGEN-SUBSTITUTED HYDROCARBON RADICALS, SAID REACTION TAKING PLACE WITH THE ELIMINATION OF A HALIDE SELECTED FROM THE CLASS CONSISTING OF HYDROGEN HALIDES AND ALKALI-METAL HALIDES, SAID ORGANO-SILICON-PHOSPHORUS CONDENSATION PRODUCT BEING DISPERSED IN SAID OIL IN AN AMOUNT SUFFICIENT TO DECREASE THE NORMAL FOAM-FORMING PROPERTIES OF SAID OIL.
Claim 2
Dependent Claim
124 words
A HYDROCARBON OIL COMPOSITION, SUBSTANTIALLY RESISTANT TO FOAMING, CONSISTING ESSENTIALLY OF A HYDROCARBON OIL AND AN ORGANO-SILICON-PHOSPHORUS CONDENSATION PRODUCT IN WHICH SILICON IS LINKED TO PHOSPHORUS THROUGH AN OXYGEN ATOM AND WHICH IS OBTAINED BY REACTING A PHOSPHORUS COMPOUND SELECTED FROM THE CLASS CONSISTING OF ACID COMPOUNDS OF PHOSPHORUS AND ALKALI-METAL SALTS THEREOF WITH A SILICON HALIDE, AT LEAST ONE OF WHICH REACTANTS CONTAINS AT LEAST ONE ORGANIC SUBSTITUENT SELECTED FROM THE GROUP CONSISTING OF THE UNSUBSTITUTED AND HALOGEN-SUBSTITUTED HYDROCARBON RADICALS, SAID REACTION TAKING PLACE WITH THE ELIMINATION OF A HALIDE SELECTED FROM THE CLASS CONSISTING OF HYDROGEN HALIDES AND ALKALI-METAL HALIDES, SAID ORGANO-SILICON-PHOSPHORUS CONDENSATION PRODUCT BEING DISPERSED IN SAID OIL IN AN AMOUNT SUFFICIENT TO DECREASE THE NORMAL FOAM-FORMING PROPERTIES OF SAID OIL.
References Cited (Backward Citations)
US2410346A
Cited
US2353587A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1953-07-10 | 1954-01-09 | 1954-07-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1957-07-10 | 1958-01-09 | 1958-07-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1961-07-10 | 1962-01-09 | 1962-07-11 | $7700.00 | Window Closed / Lapsed |