US2958681A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Crystalline polyallyl-trimethylsilane
Assignee: EIDP Inc
•
Filing: 1956-11-30
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Granted: 1960-11-01
•
Expires: 1976-11-30
Abstract
No abstract record available.
Inventors
- 👤 Tod W Campbell
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 02:35
CPC Classifications
H; H01; H01B; H01B3/00; H01B3/18; H01B3/30; H01B3/46; C; C08; C08F; C08F130/00; C08F130/04; C08F130/08
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
11 words
A SOLID HOMO-POLYMER OF ALLYL TRIMETHYLSILANE HAVING A HIGH X-RAY CRYSTALLINITY.
Claim 2
Dependent Claim
11 words
A SOLID HOMO-POLYMER OF ALLYL TRIMETHYLSILANE HAVING A HIGH X-RAY CRYSTALLINITY.
Claim 3
Dependent Claim
48 words
THE PROCESS OF POLYMERIZING ALLYL TRIMETHYLSILANE WHICH COMPRISES MIXING THEREWITH A COORDINATION CATALYST PREPARED BY FORMING A SUSPENSION OF LITHIUM ALUMINUM TETERDECYL AND TITANIUM TETERACHLORIDE IN AN ORGANIC LIQUID, AND MAINTIANING POLYMERIZING CONDITIONS AT ABOUT ROOM TEMPERATURE UNTIL A SOLID POLYMER HAVING A HIGH X-RAY CRYSTALLINITY IS OBTAINED.
Claim 4
Dependent Claim
48 words
THE PROCESS OF POLYMERIZING ALLYL TRIMETHYLSILANE WHICH COMPRISES MIXING THEREWITH A COORDINATION CATALYST PREPARED BY FORMING A SUSPENSION OF LITHIUM ALUMINUM TETERDECYL AND TITANIUM TETERACHLORIDE IN AN ORGANIC LIQUID, AND MAINTIANING POLYMERIZING CONDITIONS AT ABOUT ROOM TEMPERATURE UNTIL A SOLID POLYMER HAVING A HIGH X-RAY CRYSTALLINITY IS OBTAINED.
References Cited (Backward Citations)
BE538782A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1963-11-01 | 1964-05-02 | 1964-11-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-11-01 | 1968-05-02 | 1968-11-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-11-01 | 1972-05-02 | 1972-11-01 | $7700.00 | Window Closed / Lapsed |