Patent US3030432A successfully refreshed from Google Patents.
US3030432A
Expired / Lapsed
US
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Polymerization of conjugated dienes
Assignee: Phillips Petroleum Co
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Filing: 1957-03-28
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Granted: 1962-04-17
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Expires: 1977-03-28
Abstract
No abstract record available.
Inventors
- 👤 Paul F Warner
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 08:18
CPC Classifications
C; C08; C08F; C08F36/00; C08F36/02; C08F36/04; Y; Y10; Y10S; Y10S585/00; Y10S585/8995; Y10S585/906
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
103 words
AN IMPROVED PROCESS FOR FORMING LIQUID POLYMER OF CONJUGATED DIENE WHICH COMPRISES FORMING AN ULTRA-FINE CATALYST DISPERSION OF ALKALI METAL BY DISSOLVING ALKALI METAL IN A SOLVENT SELECTED FROM THE GROUP CONSISTING OF LIQUID AMMONIA AND ALKYL AMINES HAVING FROM 1 TO 4 CARBON ATOMS PER MOLECULE, BLENDINGTHE SOLUTION THUS FORMED WITH AN INERT LIQUID HYDROCARBON DILUENT, AND FLASHING SAID SOLVENT AT A TEMPERATURE BELOW THE MELTING POINT OF SAID ALKALI METAL THUS LEAVING A DISPERSION OF ALKALI METAL IN SAID HYDROCARBON DILUENT, INTRODUCING SAID DISPERSION OF ALKALI METAL IN HYDROCARBON DILUENT AND CONJUGATED DIENE HIVING 4 TO 6 CARBON ATOMS PER MOLECULE
Claim 2
Dependent Claim
103 words
AN IMPROVED PROCESS FOR FORMING LIQUID POLYMER OF CONJUGATED DIENE WHICH COMPRISES FORMING AN ULTRA-FINE CATALYST DISPERSION OF ALKALI METAL BY DISSOLVING ALKALI METAL IN A SOLVENT SELECTED FROM THE GROUP CONSISTING OF LIQUID AMMONIA AND ALKYL AMINES HAVING FROM 1 TO 4 CARBON ATOMS PER MOLECULE, BLENDINGTHE SOLUTION THUS FORMED WITH AN INERT LIQUID HYDROCARBON DILUENT, AND FLASHING SAID SOLVENT AT A TEMPERATURE BELOW THE MELTING POINT OF SAID ALKALI METAL THUS LEAVING A DISPERSION OF ALKALI METAL IN SAID HYDROCARBON DILUENT, INTRODUCING SAID DISPERSION OF ALKALI METAL IN HYDROCARBON DILUENT AND CONJUGATED DIENE HIVING 4 TO 6 CARBON ATOMS PER MOLECULE
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) | 1965-04-16 | 1965-10-16 | 1966-04-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-04-16 | 1969-10-16 | 1970-04-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-04-16 | 1973-10-16 | 1974-04-17 | $7700.00 | Window Closed / Lapsed |