Patent US2261648A successfully refreshed from Google Patents.
US3352818A
Expired / Lapsed
US
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Stability of polyolefines
Assignee: Glanzstoff AG
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Filing: 1965-01-26
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Granted: 1967-11-14
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Expires: 1985-01-26
Abstract
No abstract record available.
Inventors
- 👤 Meyer Gerhard
- 👤 Siggel Erhard
- 👤 Schopf Albert
- 👤 Magerlein Helmut
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 14:17
CPC Classifications
C; C08; C08J; C08J3/00; C08J3/28; C08F; C08F8/00; C08F8/18; C08F8/20; C08J2323/00; C08J2323/02
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
106 words
A PROCESS FOR IMPROVING THE STABILITY OF A HIGH MOLECULAR WEIGHT POLY-A-MONOOLEFINE WHICH COMPRISES: DISPERSING SAID POLYOLEFINE AS A FINELY DIVIDED POWDER IN AN INERT ORGANIC LIQUID SELECTED FROM THE GROUP CONSISTING OF HYDROCARBONS AND LOWER ALKANOLS CONTAINING A SMALL AMOUNT OF AN ORGANIC HYPOCHLORITE SELECTED FROM THE GROUP CONSISTING OF T-ALKYLHYPOCHLORITES AND SECONDARY HYPOCHLORITES WITH AN AROMATIC SUBSTITUENT; HEATING SAID DISPERSION WITH AGITATION IN THE PRESENCE OF UV-RAYS AND AT A TEMPERATURE OF ABOUT 20*C. UP TO THE BOILING POINT OF SAID INERT ORGANIC LIQUID FOR A PERIOD OF TIME SUFFICIENT TO ENHANCE THE OXIDATION-RESISTANCE OF SAID POLY-A-MONOOLEFINE; AND SEPARATING THE POLY-A-MONOOLEFINE FROM SAID DISPERSION.
Claim 2
Dependent Claim
106 words
A PROCESS FOR IMPROVING THE STABILITY OF A HIGH MOLECULAR WEIGHT POLY-A-MONOOLEFINE WHICH COMPRISES: DISPERSING SAID POLYOLEFINE AS A FINELY DIVIDED POWDER IN AN INERT ORGANIC LIQUID SELECTED FROM THE GROUP CONSISTING OF HYDROCARBONS AND LOWER ALKANOLS CONTAINING A SMALL AMOUNT OF AN ORGANIC HYPOCHLORITE SELECTED FROM THE GROUP CONSISTING OF T-ALKYLHYPOCHLORITES AND SECONDARY HYPOCHLORITES WITH AN AROMATIC SUBSTITUENT; HEATING SAID DISPERSION WITH AGITATION IN THE PRESENCE OF UV-RAYS AND AT A TEMPERATURE OF ABOUT 20*C. UP TO THE BOILING POINT OF SAID INERT ORGANIC LIQUID FOR A PERIOD OF TIME SUFFICIENT TO ENHANCE THE OXIDATION-RESISTANCE OF SAID POLY-A-MONOOLEFINE; AND SEPARATING THE POLY-A-MONOOLEFINE FROM SAID DISPERSION.
References Cited (Backward Citations)
US3014799A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1970-11-13 | 1971-05-15 | 1971-11-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-11-13 | 1975-05-15 | 1975-11-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-11-13 | 1979-05-15 | 1979-11-14 | $7700.00 | Window Closed / Lapsed |