US3275595A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Polyolefins of improved light stability and dry receptivity containing chromium phenolates
Assignee: Hercules LLC
•
Filing: 1963-03-07
•
Granted: 1966-09-27
•
Expires: 1983-03-07
Abstract
No abstract record available.
Inventors
- 👤 David S Breslow
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 04:21
CPC Classifications
C; C08; C08K; C08K5/00; C08K5/04; C08K5/13; C08K5/138; C08K5/36; C08K5/41
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
107 words
A POLYOLEFIN SELECTED FROM THE GROUP CONSISTING OF POLYETHYLENE AND STEREOREGULAR POLYMER OF A MONO-AOLEFIN HAVING AT LEAST 3 CARBON ATOMS CONTAINING ABOUT 0.01 TO ABOUT 5%, BASED ON THE WEIGHT OF POLYOLEFIN, OF A CHROMIUM PHENOLATE SELECTED FROM THE GROUP CONSISTING OF THE CHRONIUM PHENOLATES OF BIS(P-ALKYLPHENOL) SULFOXIDES AND BIS(P-ALKYLPHENOL) SULFONES IN WHICH AT LEAST ONE PHENOLIC HYDROGEN HAS BEEN REPLACED BY THE TRIVALENT CHROMIUM ION AND ABOUT 0.01 TO ABOUT 5% BY WEIGHT OF THE POLYOLEFIN OF A PHENOLIC COMPOUND SELECTED FROM THE GROUP CONSISTING OF POLYALKYLPHENOLS, ALKLIDENE BIS(ALKYLPHENOL)S, BIS(ALKYPHENOL) SULFIDES, 2(2''-HYDROXYPHENYL)2,4,4- POLYALKYLCHROMANS, 4(2'' - HYDROXYPHENYL)-2,2,4POLYALKYLCHROMANS, AND ADDUCTS OF AN ALKYLPHENOL AND A CYCLIC TERPENE.
Claim 2
Dependent Claim
107 words
A POLYOLEFIN SELECTED FROM THE GROUP CONSISTING OF POLYETHYLENE AND STEREOREGULAR POLYMER OF A MONO-AOLEFIN HAVING AT LEAST 3 CARBON ATOMS CONTAINING ABOUT 0.01 TO ABOUT 5%, BASED ON THE WEIGHT OF POLYOLEFIN, OF A CHROMIUM PHENOLATE SELECTED FROM THE GROUP CONSISTING OF THE CHRONIUM PHENOLATES OF BIS(P-ALKYLPHENOL) SULFOXIDES AND BIS(P-ALKYLPHENOL) SULFONES IN WHICH AT LEAST ONE PHENOLIC HYDROGEN HAS BEEN REPLACED BY THE TRIVALENT CHROMIUM ION AND ABOUT 0.01 TO ABOUT 5% BY WEIGHT OF THE POLYOLEFIN OF A PHENOLIC COMPOUND SELECTED FROM THE GROUP CONSISTING OF POLYALKYLPHENOLS, ALKLIDENE BIS(ALKYLPHENOL)S, BIS(ALKYPHENOL) SULFIDES, 2(2''-HYDROXYPHENYL)2,4,4- POLYALKYLCHROMANS, 4(2'' - HYDROXYPHENYL)-2,2,4POLYALKYLCHROMANS, AND ADDUCTS OF AN ALKYLPHENOL AND A CYCLIC TERPENE.
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) | 1969-09-26 | 1970-03-28 | 1970-09-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-09-26 | 1974-03-28 | 1974-09-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-09-26 | 1978-03-28 | 1978-09-27 | $7700.00 | Window Closed / Lapsed |