US2688009A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Solid reaction product of a liquid polymerized diene and method of making the same
Assignee: Phillips Petroleum Co
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Filing: 1951-01-02
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Granted: 1954-08-31
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Expires: 1971-01-02
Abstract
No abstract record available.
Inventors
- 👤 Willie W Crouch
- 👤 Ted F Crosnoe
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 15:09
CPC Classifications
C; C08; C08F; C08F236/00; C08F236/02; C08F236/04
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
70 words
A SOLID REACTION PRODUCT PRODUCED BY REACTING, IN THE PRESENCE OF A POLYMERIZATION CATALYST, REACTANTS CONSISTING OF A LIQUID POLYMER OF A CONJUGATED DIENE PRODUCED BY MASS POLYMERIZATION WITH A SODIUM CATALYST, HAVING A VISCOSITY IN THE RANGE FROM 100 TO 5000 SAYBOLT FUROL SECONDS AT 100* F., WITH FROM 5 TO 50 WEIGHT PER CENT, BASED ON SAID POLYMER OF A CONJUGATED DIENE, OF A COMPOUND HAVING THE FORMULA
Claim 2
Dependent Claim
70 words
A SOLID REACTION PRODUCT PRODUCED BY REACTING, IN THE PRESENCE OF A POLYMERIZATION CATALYST, REACTANTS CONSISTING OF A LIQUID POLYMER OF A CONJUGATED DIENE PRODUCED BY MASS POLYMERIZATION WITH A SODIUM CATALYST, HAVING A VISCOSITY IN THE RANGE FROM 100 TO 5000 SAYBOLT FUROL SECONDS AT 100* F., WITH FROM 5 TO 50 WEIGHT PER CENT, BASED ON SAID POLYMER OF A CONJUGATED DIENE, OF A COMPOUND HAVING THE FORMULA
References Cited (Backward Citations)
GB593072A
Cited
US1938730A
Cited
US2383084A
Cited
US2474807A
Cited
US2527640A
Cited
US2597951A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1957-08-30 | 1958-03-01 | 1958-08-31 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1961-08-30 | 1962-03-01 | 1962-08-31 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1965-08-30 | 1966-03-01 | 1966-08-31 | $7700.00 | Window Closed / Lapsed |