US2805960A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process for treating polyethylene structures and articles resulting therefrom
Assignee: EIDP Inc
•
Filing: 1952-11-29
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Granted: 1957-09-10
•
Expires: 1972-11-29
Abstract
No abstract record available.
Inventors
- 👤 Leon E Wolinski
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 19:52
CPC Classifications
B; B29; B29C; B29C59/00; B29C59/16; B29C35/00; B29C35/02; B29C35/08; B29C35/0805; B29C2035/0827; B29K; B29K2023/00; B29K2023/04; B29K2023/06; B29L; B29L2007/00; B29L2007/008; Y; Y10; Y10S; Y10S8/00; Y10S8/09; Y10S8/10; Y10T; Y10T428/00; Y10T428/31504; Y10T428/31678; Y10T428/31692; Y10T428/31725; Y10T428/31739; Y10T428/31743; Y10T428/31855; Y10T428/3188; Y10T428/31884; Y10T428/31888; Y10T428/31895; Y10T428/31899; Y10T428/31902; Y10T428/31909; Y10T428/31913; Y10T428/3192
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
98 words
A PROCESS FOR TREATING STRUCTURES OF POLYETHYLENE WHICH COMPRISES SUBJECTING SAID STRUCTURES TO THE ACTION OF A GASEOUS ATMOSPHERE CONTAINING AT LEAST 0.1% BY VOLUME OF OZONE, AT A TEMPERATURE WITHIN THE RANGE OF FROM 150*C. TO THE TEMPERATURE BEYOND WHICH SUBSTANTIAL DEGRADATION OF THE POLYETHYLENE OCCURS AND QUENCHING SAID STRUCTURES IN A CONCENTRATED AQUEOUS SOLUTION OF A REAGENT SELECTED FROM THE GROUP CONSISTING OF THE HALOGENS AND HYDROCHLORIC, HYDROBROMIC, HYDROIODIC AND HYDROFLUORIC ACIDS FOR A PERIOD OF TIME SUFFICIENT TO RENDER SAID STRUCTURES ADHERENT TO PRINTING INK, AND THEREAFTER NEUTRALIZING SAID STRUCTURES IN AN AQUEOUS, ALKALINE BATH.
Claim 2
Dependent Claim
98 words
A PROCESS FOR TREATING STRUCTURES OF POLYETHYLENE WHICH COMPRISES SUBJECTING SAID STRUCTURES TO THE ACTION OF A GASEOUS ATMOSPHERE CONTAINING AT LEAST 0.1% BY VOLUME OF OZONE, AT A TEMPERATURE WITHIN THE RANGE OF FROM 150*C. TO THE TEMPERATURE BEYOND WHICH SUBSTANTIAL DEGRADATION OF THE POLYETHYLENE OCCURS AND QUENCHING SAID STRUCTURES IN A CONCENTRATED AQUEOUS SOLUTION OF A REAGENT SELECTED FROM THE GROUP CONSISTING OF THE HALOGENS AND HYDROCHLORIC, HYDROBROMIC, HYDROIODIC AND HYDROFLUORIC ACIDS FOR A PERIOD OF TIME SUFFICIENT TO RENDER SAID STRUCTURES ADHERENT TO PRINTING INK, AND THEREAFTER NEUTRALIZING SAID STRUCTURES IN AN AQUEOUS, ALKALINE BATH.
References Cited (Backward Citations)
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1960-09-09 | 1961-03-11 | 1961-09-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1964-09-09 | 1965-03-11 | 1965-09-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1968-09-09 | 1969-03-11 | 1969-09-10 | $7700.00 | Window Closed / Lapsed |