US2601632A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Producing an improved synthetic rubber from a multicomponent monomeric material
Assignee: Phillips Petroleum Co
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Filing: 1949-11-25
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Granted: 1952-06-24
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Expires: 1969-11-25
Abstract
No abstract record available.
Inventors
- 👤 William B Reynolds
- 👤 Charles F Fryling
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 17:16
CPC Classifications
C; C08; C08F; C08F236/00; C08F236/02; C08F236/04
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
63 words
A PROCESS FOR PRODUCING AN IMPROVED SYNTHETIC RUBBER, WHICH COMPRISES POLYMERIZING AN AQUEOUS DISPERSION OF A HYDROCARBON MONOMERIC MATERIAL COMPRISING AT LEAST 90 PER CENT BY WEIGHT OF EQUAL PARTS BY WEIGHT OF AT LEAST FOUR MEMBERS SELECTED FROM THE GROUP CONSISTING OF BUTADIENE, ISOPRENE, PIPERYLENE, METHYLPENTADIENE, AND DIMETHYLBUTADIENE, AT A POLYMERIZATION TEMPERATURE BELOW 0* C., AND RECOVERING A POLYMERIC MATERIAL SO PRODUCCED.
Claim 2
Dependent Claim
63 words
A PROCESS FOR PRODUCING AN IMPROVED SYNTHETIC RUBBER, WHICH COMPRISES POLYMERIZING AN AQUEOUS DISPERSION OF A HYDROCARBON MONOMERIC MATERIAL COMPRISING AT LEAST 90 PER CENT BY WEIGHT OF EQUAL PARTS BY WEIGHT OF AT LEAST FOUR MEMBERS SELECTED FROM THE GROUP CONSISTING OF BUTADIENE, ISOPRENE, PIPERYLENE, METHYLPENTADIENE, AND DIMETHYLBUTADIENE, AT A POLYMERIZATION TEMPERATURE BELOW 0* C., AND RECOVERING A POLYMERIC MATERIAL SO PRODUCCED.
References Cited (Backward Citations)
US2384544A
Cited
US2384574A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1955-06-24 | 1955-12-24 | 1956-06-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1959-06-24 | 1959-12-24 | 1960-06-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1963-06-24 | 1963-12-24 | 1964-06-24 | $7700.00 | Window Closed / Lapsed |