Patent US2960876A successfully refreshed from Google Patents.
Patent US3066129A successfully refreshed from Google Patents.
US3066129A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Production of rubbery polymers with a lithium aluminum hydride-titanium chloride-iodine catalyst
Assignee: Phillips Petroleum Co
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Filing: 1960-07-15
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Granted: 1962-11-27
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Expires: 1980-07-15
Abstract
No abstract record available.
Inventors
- 👤 Ralph C Farrar
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 18:03
CPC Classifications
C; C08; C08F; C08F36/00; C08F36/02; C08F36/04; C08F136/00; C08F136/02; C08F136/04; C08F136/06
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
56 words
A METHOD FOR POLYMERIZING A MONOMER SELECTED FROM THE GROUP CONSISTING OF 1,3-BUTADIENE AND ISOPRENE WHICH COMPRISES CONTACTING SAID MONOMER UNDER POLYMERIZATION CONDITIONS WITH A CATALYST CONSISTING ESSENTIALLY OF (A) AN ETHER SOLUTION OF LITHIUM ALUMINUM HYDRIDE, (B) A TITANIUM CHLORIDE SELECTED FROM THE GROUP CONSISTING OF DI-, TRI- AND TETRACHLORIDES OF TITANIUM, AND (C) IODINE.
Claim 2
Independent Claim
56 words
A METHOD FOR POLYMERIZING A MONOMER SELECTED FROM THE GROUP CONSISTING OF 1,3-BUTADIENE AND ISOPRENE WHICH COMPRISES CONTACTING SAID MONOMER UNDER POLYMERIZATION CONDITIONS WITH A CATALYST CONSISTING ESSENTIALLY OF (A) AN ETHER SOLUTION OF LITHIUM ALUMINUM HYDRIDE, (B) A TITANIUM CHLORIDE SELECTED FROM THE GROUP CONSISTING OF DI-, TRI- AND TETRACHLORIDES OF TITANIUM, AND (C) IODINE.
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) | 1965-11-26 | 1966-05-28 | 1966-11-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-11-26 | 1970-05-28 | 1970-11-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-11-26 | 1974-05-28 | 1974-11-27 | $7700.00 | Window Closed / Lapsed |