US3280058A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Polyolefins stabilized with mixtures of phenol sulfides and esters of thiodiethylene lycol
Assignee: Montedison SpA
•
Filing: 1962-12-07
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Granted: 1966-10-18
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Expires: 1982-12-07
Abstract
No abstract record available.
Inventors
- 👤 Caldo Cornelio
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 04:28
CPC Classifications
C; C08; C08K; C08K5/00; C08K5/36; C08K5/37; C08K5/372
Claims Analysis
Total Claims: 3
Claim 1
Independent Claim
41 words
A STABILIZED POLYMERIC COMPOSITION COMPRISING A POLYMER OF A MONOOLEFIN HAVING FROM 2 TO 4 CARBON ATOMS, SAID POLYMER CONSISTING OF OVER 50% OF ISOTACTIC MACROMOLECULES, AND A STABILIZING MIXTURE OF A DIALKYLPHENOL SULFIDE AND A THIOESTER OF THE GENERAL FORMULA
Claim 2
Dependent Claim
41 words
A STABILIZED POLYMERIC COMPOSITION COMPRISING A POLYMER OF A MONOOLEFIN HAVING FROM 2 TO 4 CARBON ATOMS, SAID POLYMER CONSISTING OF OVER 50% OF ISOTACTIC MACROMOLECULES, AND A STABILIZING MIXTURE OF A DIALKYLPHENOL SULFIDE AND A THIOESTER OF THE GENERAL FORMULA
Claim 3
Dependent Claim
23 words
THE POLYMERIC COMPOSITION OF CLAIM 1, WHICH COMPOSITION CONTAINS IN ADDITION FROM ABOUT 0.1 TO 2% OF A METAL SALT OF STEARIC ACID.
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) | 1969-10-17 | 1970-04-18 | 1970-10-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-10-17 | 1974-04-18 | 1974-10-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-10-17 | 1978-04-18 | 1978-10-18 | $7700.00 | Window Closed / Lapsed |