US3359231A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Synthetic trans-1, 4-polymers of conjugated diolefins with improved hardening rate properties
Assignee: Polysar Ltd
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Filing: 1965-10-18
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Granted: 1967-12-19
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Expires: 1985-10-18
Abstract
No abstract record available.
Inventors
- 👤 Kent Eric George
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 10:44
CPC Classifications
C; C08; C08K; C08K3/00; C08K3/34; C08K3/36; B; B29; B29D; B29D99/00; B29D99/0042; B29K; B29K2009/00; B29L; B29L2031/00; B29L2031/54
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
78 words
PROCESS OF PRODUCING A SHAPED ARTICLE OF A COMPOSITION CONTAINING A SYNTHETIC CRYSTALLINE TRANS-1,4 POLYMER OF A CONJUGATED DIOLEFIN WHICH COMPRISS HEATING THE COMPOSITION ABOVE THE MELTING POINT OF SAID POLYMER, WHEREBY THE COMPOSITION SOFTENS, SHAPING TO A PREDETERMINED SHAPE, AND HARDENING BY COOLING, WHEREBY THE RATE OF HARDENING IS INCREASED BY DISPERSING 1-10 PARTS PER 100 PARTS BY WEIGHT OF THE TRANS-1,4 POLYMER OF A SILICEOUS MATERIAL HAVING AN AVERAGE PARTICLE SIZE FROM 0.01 TO 0.05 MICRON.
Claim 2
Dependent Claim
78 words
PROCESS OF PRODUCING A SHAPED ARTICLE OF A COMPOSITION CONTAINING A SYNTHETIC CRYSTALLINE TRANS-1,4 POLYMER OF A CONJUGATED DIOLEFIN WHICH COMPRISS HEATING THE COMPOSITION ABOVE THE MELTING POINT OF SAID POLYMER, WHEREBY THE COMPOSITION SOFTENS, SHAPING TO A PREDETERMINED SHAPE, AND HARDENING BY COOLING, WHEREBY THE RATE OF HARDENING IS INCREASED BY DISPERSING 1-10 PARTS PER 100 PARTS BY WEIGHT OF THE TRANS-1,4 POLYMER OF A SILICEOUS MATERIAL HAVING AN AVERAGE PARTICLE SIZE FROM 0.01 TO 0.05 MICRON.
References Cited (Backward Citations)
US3223694A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1970-12-18 | 1971-06-19 | 1971-12-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-12-18 | 1975-06-19 | 1975-12-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-12-18 | 1979-06-19 | 1979-12-19 | $7700.00 | Window Closed / Lapsed |