US3036034A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Polyethylene and polypropylene stabilized with thiosulphates
Assignee: Shell USA Inc
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Filing: 1960-01-29
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Granted: 1962-05-22
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Expires: 1980-01-29
Abstract
No abstract record available.
Inventors
- 👤 Gottfried E Rumscheidt
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 07:19
CPC Classifications
C; C08; C08K; C08K5/00; C08K5/36; C08K5/41
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
125 words
A COMPOSITION COMPRISING A SOLID POLYMER OF AN ALPHA-MONOOLEFIN SELECTED FROM THE GROUP CONSISTING OF ETHYLENE AND PROPYLENE PRODUCED BY A LOW-PRESSURE POLYMERIZATION PROCESS AND LESS THAN ABOUT 1% BY WEIGHT OF A COMPOUND HAVING THE FORMULA (RS2O3)NX WHEREIN: X REPRESENTS A RADICAL OF THE GROUP CONSISTING OF ALKALI METALS, ALKALINE EARTH METALS, ZINC, CADMIUM, AND AN ORGANIC GROUP R; R AND R'' EACH REPRESENTS AN ORGANIC RADICAL SELECTED FROM THE GROUP CONSISTING OF ALKYL, CYCLOALKYL, AND ARYL GROUPS , ALKYL-SUBSTITUTED, HYDROXY-SUBSTITUTED, AND HALOGEN-SUBSTITUTED ALKYL, CYCLOALKYL, AND ARYL GROUPS; "N" IS AN INTEGER WHICH IS THE SAME AS THE VALENCE OF X; SAID COMPOUND (RS2O3)NX CONTAINING AT LEAST 6 CARBON ATOMS AND THE GROUPS R AND R'' CONTAINING FROM 3 TO 20 CARBON ATOMS EACH.
Claim 2
Dependent Claim
125 words
A COMPOSITION COMPRISING A SOLID POLYMER OF AN ALPHA-MONOOLEFIN SELECTED FROM THE GROUP CONSISTING OF ETHYLENE AND PROPYLENE PRODUCED BY A LOW-PRESSURE POLYMERIZATION PROCESS AND LESS THAN ABOUT 1% BY WEIGHT OF A COMPOUND HAVING THE FORMULA (RS2O3)NX WHEREIN: X REPRESENTS A RADICAL OF THE GROUP CONSISTING OF ALKALI METALS, ALKALINE EARTH METALS, ZINC, CADMIUM, AND AN ORGANIC GROUP R; R AND R'' EACH REPRESENTS AN ORGANIC RADICAL SELECTED FROM THE GROUP CONSISTING OF ALKYL, CYCLOALKYL, AND ARYL GROUPS , ALKYL-SUBSTITUTED, HYDROXY-SUBSTITUTED, AND HALOGEN-SUBSTITUTED ALKYL, CYCLOALKYL, AND ARYL GROUPS; "N" IS AN INTEGER WHICH IS THE SAME AS THE VALENCE OF X; SAID COMPOUND (RS2O3)NX CONTAINING AT LEAST 6 CARBON ATOMS AND THE GROUPS R AND R'' CONTAINING FROM 3 TO 20 CARBON ATOMS EACH.
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) | 1965-05-21 | 1965-11-20 | 1966-05-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-05-21 | 1969-11-20 | 1970-05-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-05-21 | 1973-11-20 | 1974-05-22 | $7700.00 | Window Closed / Lapsed |