US3006885A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Stabilized polyolefin compositions
Assignee: Hercules Powder Co
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Filing: 1959-08-24
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Granted: 1961-10-31
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Expires: 1979-08-24
Abstract
No abstract record available.
Inventors
- 👤 Jr David M Dickson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 19:35
CPC Classifications
C; C08; C08K; C08K5/00; C08K5/36; C08K5/37; C08K5/375
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
52 words
A STABLIZED POLYPROPYLENE COMPOSITION COMPRISING POLYPROPYLENE, AND IN INTIMATE ADMIXTURE THEREWITH A NICKEL PHENOLATE OF A BIS-(P-ALKYLPHENOL) MONOSULFIDE IN WHICH THE ALKYL GROUP CONTAINS FROM 2 TO 12 CARBON ATOMS IN COMBINATION WITH AT LEAST ONE OF THE GROUP CONSISTING OF 2(2'' - HYDROXYPHENYL) - 2,2,4-TRIMETHYL-POLYALKYLCHROMANS, 4(2''-HYDROXYPHENYL) -2,2,4 - TRIMETHYL-POLYALKYLCHROMANS, AND ALKYLIDENE-BIS-(ALKYPHENOL)S.
Claim 2
Dependent Claim
52 words
A STABLIZED POLYPROPYLENE COMPOSITION COMPRISING POLYPROPYLENE, AND IN INTIMATE ADMIXTURE THEREWITH A NICKEL PHENOLATE OF A BIS-(P-ALKYLPHENOL) MONOSULFIDE IN WHICH THE ALKYL GROUP CONTAINS FROM 2 TO 12 CARBON ATOMS IN COMBINATION WITH AT LEAST ONE OF THE GROUP CONSISTING OF 2(2'' - HYDROXYPHENYL) - 2,2,4-TRIMETHYL-POLYALKYLCHROMANS, 4(2''-HYDROXYPHENYL) -2,2,4 - TRIMETHYL-POLYALKYLCHROMANS, AND ALKYLIDENE-BIS-(ALKYPHENOL)S.
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) | 1964-10-30 | 1965-05-01 | 1965-10-31 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-10-30 | 1969-05-01 | 1969-10-31 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-10-30 | 1973-05-01 | 1973-10-31 | $7700.00 | Window Closed / Lapsed |