US2667463A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Interpolymer of cyclo-diolefine and an unsaturated ester
Assignee: Shell Development Co
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Filing: 1951-11-06
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Granted: 1954-01-26
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Expires: 1971-11-06
Abstract
No abstract record available.
Inventors
- 👤 Robert H Jakob
- 👤 Roy W H Tess
- 👤 Theodore F Bradley
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 14:14
CPC Classifications
C; C08; C08F; C08F290/00; C08F290/02; C08F290/06; C08F290/062
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
108 words
AN INTERPOLYMER OF A CONJUGATED CYCLO-DIOLEFINE CONTAINING 5 TO 6 CARBON ATOMS IN THE RING, AND AN OLEFINICALLY UNSATURATED FATTY ACID POLYESTER OF AN ESTERIFIABLE GLYCERYL POLYETHER OF A DIHYDRIC PHENOL HAVING TERMINAL GLYCERYL GROUPS AND HAVING ALTERNATING GLYCERYL RADICALS AND THE HYDROCARBON RADICALS OF THE PHENOL UNITED IN A CHAIN BY ETHER OXYGEN ATOMS BETWEEN SAID RADICALS, WHICH ACID CONTAINS 12 TO 22 CARBON ATOMS AND HAS AN IODINE VALUE OF 110 TO 400, AND WHICH POLYESTER CONTAINS AT LEAST THREE ACYLOXY GROUPS OF THE FATTY ACID JOINED TO THE GLYCERYL GROUPS OF THE POLYETHER, SAID INTERPOLYMER CONTAINING ABOUT 5% TO 6% BY WEIGHT OF POLYMERIZED CYCLO-DICLEFINE.
Claim 2
Dependent Claim
108 words
AN INTERPOLYMER OF A CONJUGATED CYCLO-DIOLEFINE CONTAINING 5 TO 6 CARBON ATOMS IN THE RING, AND AN OLEFINICALLY UNSATURATED FATTY ACID POLYESTER OF AN ESTERIFIABLE GLYCERYL POLYETHER OF A DIHYDRIC PHENOL HAVING TERMINAL GLYCERYL GROUPS AND HAVING ALTERNATING GLYCERYL RADICALS AND THE HYDROCARBON RADICALS OF THE PHENOL UNITED IN A CHAIN BY ETHER OXYGEN ATOMS BETWEEN SAID RADICALS, WHICH ACID CONTAINS 12 TO 22 CARBON ATOMS AND HAS AN IODINE VALUE OF 110 TO 400, AND WHICH POLYESTER CONTAINS AT LEAST THREE ACYLOXY GROUPS OF THE FATTY ACID JOINED TO THE GLYCERYL GROUPS OF THE POLYETHER, SAID INTERPOLYMER CONTAINING ABOUT 5% TO 6% BY WEIGHT OF POLYMERIZED CYCLO-DICLEFINE.
References Cited (Backward Citations)
US2574753A
Cited
US2575440A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1957-01-25 | 1957-07-27 | 1958-01-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1961-01-25 | 1961-07-27 | 1962-01-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1965-01-25 | 1965-07-27 | 1966-01-26 | $7700.00 | Window Closed / Lapsed |