Patent US5574648A successfully refreshed from Google Patents.
US3072601A
Expired / Lapsed
US
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Stabilization of polyolefins
Assignee: Hercules Powder Co
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Filing: 1960-08-11
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Granted: 1963-01-08
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Expires: 1980-08-11
Abstract
No abstract record available.
Inventors
- 👤 David S Breslow
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 16:02
CPC Classifications
C; C08; C08K; C08K5/00; C08K5/36; C08K5/41
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
82 words
A STEREOREGULAR POLYMER OF AN A-OLEFIN CONTAINING AS A LIGHT STABILIZER THEREFOR FROM 0.01% TO 5%, BASED ON THE WEIGHT OF POLYMER, OF A NICKEL PHENOLATE OF A COMPOUND SELECTED FROM THE GROUP CONSISTING OF BIS(P-ALKYLPHENOL) SULFOXIDES AND BIS(P-ALKYLPHENOL) SULFONES IN WHICH THE ALKYL GROUPS EACH CONTAIN AT LEAST 2 CARBON ATOMS, AND FROM 0.01% TO 5%, BASED ON THE WEIGHT OF POLYMER, OF A PHENOLIC COMPOUND SELECTED FROM THE GROUP CONSISTING OF ALKYL PHENOLS, BIS-PHENOLS, TERPENE PHENOLS, ARALKYL PEHNOLS, AND POLYALKYLCHROMANS.
Claim 2
Dependent Claim
82 words
A STEREOREGULAR POLYMER OF AN A-OLEFIN CONTAINING AS A LIGHT STABILIZER THEREFOR FROM 0.01% TO 5%, BASED ON THE WEIGHT OF POLYMER, OF A NICKEL PHENOLATE OF A COMPOUND SELECTED FROM THE GROUP CONSISTING OF BIS(P-ALKYLPHENOL) SULFOXIDES AND BIS(P-ALKYLPHENOL) SULFONES IN WHICH THE ALKYL GROUPS EACH CONTAIN AT LEAST 2 CARBON ATOMS, AND FROM 0.01% TO 5%, BASED ON THE WEIGHT OF POLYMER, OF A PHENOLIC COMPOUND SELECTED FROM THE GROUP CONSISTING OF ALKYL PHENOLS, BIS-PHENOLS, TERPENE PHENOLS, ARALKYL PEHNOLS, AND POLYALKYLCHROMANS.
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) | 1966-01-07 | 1966-07-09 | 1967-01-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-01-07 | 1970-07-09 | 1971-01-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-01-07 | 1974-07-09 | 1975-01-08 | $7700.00 | Window Closed / Lapsed |