US3074916A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Lubricant addition agents
Assignee: Standard Oil Co
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Filing: 1958-02-27
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Granted: 1963-01-22
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Expires: 1978-02-27
Abstract
No abstract record available.
Inventors
- 👤 Eilis K Fields
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 14:03
CPC Classifications
C; C10; C10M; C10M1/00; C10M1/08; C08; C08F; C08F8/00; C08F8/30; C08F2800/00; C08F2800/10; C08F2800/20; C08F2810/00; C08F2810/50; C10M2217/00; C10M2217/02; C10M2217/04; C10N; C10N2070/00; C10N2070/02
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
167 words
THE PRODUCT OBTAINED BY THE RACTION, AT A TEMPERATURE WITHIN THE RANGE FROM ABOUT 0*C. TO ABOUT 125*C., OF HYDRAZOIC ACID EITH AN OIL SOLUBLE COPOLYMERIC MATERIAL, SAID COPOLYMERIC MATERIAL RESULTING FROM THE COPOLYMERIZATION OF (A) AN UNSATURATED DICARBOXYLIC ACID HAVING FROM 4 TO 5 CARBON ATOMS IN THE MOLECULE AND (B) AT LEAST ONE VINYLIDENE COMPOUND COPOLYMERIZABLE THEREWITH, SAID COPOLYMERIC MATERIAL HAVING A PLURALITY OF FREE CARBOXYL GROUPS AND A PLURALITY OF ESTER GROUPS IN WHICH THE ALCOHOL RESIDUES ARE ALKALY GROUPS HAVING FROM ABOUT 2 TO ABOUT 22 CARBON ATOMS PER GROUP, THE MOLE RATIO OF UNITS OF SAID DICARBOXYLIC ACID TO UNITS OF SAID VINYLIDENE COMPOUND IN SAID COPOLOYMERIC MATERIAL BEING WITHIN THE RANGE FROM ABOUT 1:100 TO ABOUT 1:1, THE QUANTITY OF HYDRAZOIC ACID USED IN SAID REACTION BEING WITHIN THE RANGE FROM ABOUT 1 TO ABOUT 4 MOLES PER MOLES OF FREE CARBOXLY GROUP IN SAID COPOLYMERIC MATERIAL, SAID REACTION BEING CARRIED OUT IN A REACTION MIXTURE CONTAINING AN ACID REACTING CATALYST.
Claim 2
Dependent Claim
167 words
THE PRODUCT OBTAINED BY THE RACTION, AT A TEMPERATURE WITHIN THE RANGE FROM ABOUT 0*C. TO ABOUT 125*C., OF HYDRAZOIC ACID EITH AN OIL SOLUBLE COPOLYMERIC MATERIAL, SAID COPOLYMERIC MATERIAL RESULTING FROM THE COPOLYMERIZATION OF (A) AN UNSATURATED DICARBOXYLIC ACID HAVING FROM 4 TO 5 CARBON ATOMS IN THE MOLECULE AND (B) AT LEAST ONE VINYLIDENE COMPOUND COPOLYMERIZABLE THEREWITH, SAID COPOLYMERIC MATERIAL HAVING A PLURALITY OF FREE CARBOXYL GROUPS AND A PLURALITY OF ESTER GROUPS IN WHICH THE ALCOHOL RESIDUES ARE ALKALY GROUPS HAVING FROM ABOUT 2 TO ABOUT 22 CARBON ATOMS PER GROUP, THE MOLE RATIO OF UNITS OF SAID DICARBOXYLIC ACID TO UNITS OF SAID VINYLIDENE COMPOUND IN SAID COPOLOYMERIC MATERIAL BEING WITHIN THE RANGE FROM ABOUT 1:100 TO ABOUT 1:1, THE QUANTITY OF HYDRAZOIC ACID USED IN SAID REACTION BEING WITHIN THE RANGE FROM ABOUT 1 TO ABOUT 4 MOLES PER MOLES OF FREE CARBOXLY GROUP IN SAID COPOLYMERIC MATERIAL, SAID REACTION BEING CARRIED OUT IN A REACTION MIXTURE CONTAINING AN ACID REACTING CATALYST.
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) | 1966-01-21 | 1966-07-23 | 1967-01-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-01-21 | 1970-07-23 | 1971-01-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-01-21 | 1974-07-23 | 1975-01-22 | $7700.00 | Window Closed / Lapsed |