US3825626A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Ethylene polymer composition having enhanced photodegradability
Assignee: Dow Chemical Co
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Filing: 1971-07-06
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Granted: 1974-07-23
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Expires: 1991-07-06
Abstract
Abstract PHOTODEGRADABILITY OF ETHYLENE POLYMER CONTAINING A PHOTOSENSITIZING MATERIAL IS ENHANCED BY INCORPORATING THEREIN A MINOR AMOUNT OF POLYPROPYLENE. THE RESULTANT PHOTODEGRADABLE BLENDS ARE USEFUL AS MOLDING OR EXTRUSION COMPOSITION FOR THE PRODUCTION OF DISPOSABLE PLASTIC ARTICLES E.G., WRAPPING, CONTAINERS, ETC., WHICH DEGRADE RAPIDLY WHEN EXPOSED TO SUNLIGHT AND OTHER ULTRAVOILET LIGHT SOURCES.
Inventors
- 👤 Gaugh M Mc
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 08:54
CPC Classifications
C; C08; C08K; C08K5/00; C08K5/0008; C08K5/0033; C08L; C08L23/00; C08L23/02; C08L23/04; C08L23/06; C08K5/04; C08K5/07; C08L23/10; Y; Y10; Y10S; Y10S260/00; Y10S260/43
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1977-07-22 | 1978-01-21 | 1978-07-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-07-22 | 1982-01-21 | 1982-07-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-07-22 | 1986-01-21 | 1986-07-23 | $7700.00 | Window Closed / Lapsed |