US3296191A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Stabilized polypropylene containing a nickel or cobalt phenol-phenolate of a 2, 2'-dihydroxy-4-alkoxybenzophenone
Assignee: FMC Corp
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Filing: 1961-11-17
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Granted: 1967-01-03
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Expires: 1981-11-17
Abstract
No abstract record available.
Inventors
- 👤 Harold T Smallwood
- 👤 Tryon Sager
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 00:45
CPC Classifications
C; C08; C08K; C08K5/00; C08K5/0091; C08K5/04; C08K5/13; C08K5/138
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
56 words
A COMPOSITION OF MATTER COMPRISING SOLID, SUBSTANTIALLY CRYSTALLINE ISOTACTIC POLYPROPYLENE AND A STABLILIZING QUANTITY OF A METAL-PHENOL-PHENOLATE OF A 2,-2''-DIHYDROXY4-ALKOXYBENZOPHENONE WHEREIN SAID METAL IS SELECTED FROM THE GROUP CONSISTING OF NICKEL AND COBALT, SAID ALKOXY GROUP CONTAINS BETWEEN 6 AND 20 CARBON ATOMS, AND THE MOL RATIO OF METAL TO BENZOPHENONE IS ABOUT 1 TO 2.
Claim 2
Dependent Claim
56 words
A COMPOSITION OF MATTER COMPRISING SOLID, SUBSTANTIALLY CRYSTALLINE ISOTACTIC POLYPROPYLENE AND A STABLILIZING QUANTITY OF A METAL-PHENOL-PHENOLATE OF A 2,-2''-DIHYDROXY4-ALKOXYBENZOPHENONE WHEREIN SAID METAL IS SELECTED FROM THE GROUP CONSISTING OF NICKEL AND COBALT, SAID ALKOXY GROUP CONTAINS BETWEEN 6 AND 20 CARBON ATOMS, AND THE MOL RATIO OF METAL TO BENZOPHENONE IS ABOUT 1 TO 2.
References Cited (Backward Citations)
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Cited
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Cited
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Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1970-01-02 | 1970-07-04 | 1971-01-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-01-02 | 1974-07-04 | 1975-01-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-01-02 | 1978-07-04 | 1979-01-03 | $7700.00 | Window Closed / Lapsed |