Patent US2870118A successfully refreshed from Google Patents.
US2870118A
Expired / Lapsed
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Process for polymerizing ethylenic organic compounds with redox system catalysts in the presence of betaine derivatives
Assignee: Evonik Operations GmbH
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Filing: 1956-02-21
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Granted: 1959-01-20
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Expires: 1976-02-21
Abstract
No abstract record available.
Inventors
- 👤 Bader Erich
- 👤 Schweitzer Otto
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 19:10
CPC Classifications
C; C08; C08F; C08F4/00; C08F4/28
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
94 words
IN THE PREPARATION OF A POLYMER BY CATALYTIC POLYMERIZATION OF A POLYMERIZABLE MASS COMPRISING AT LEAST ONE POLYMERIZABLE COMPOUND CONTAINING A >$CH2 GROUP WITH A CATALYTIC AMOUNT OF A REDOX SYSTEM CATALYST CONTAINING AT LEAST ONE PEROXIDE COMPOUND AND AT LEAST ONE ORGANIC SULFUR CONTAINING COMPOUND SELECTED FROM THE GROUP CONSISTING OF SULFINIC ACID COMPOUNDS, A-OXYSULFONES, THIOETHERS AND MERCHANTS, THE STEP WHICH COMPRISES CONDUCTING THE POLYMERIZATION OF SAID MASS IN THE PRESENCE OF A CATALYTIC AMOUNT OF A BETAINE DERIVA TIVE WHICH IS SOLUBLE IN SAID POLYMERIZABLE COMPOUND AND WHICH IS OF THE FORMULA
Claim 2
Dependent Claim
94 words
IN THE PREPARATION OF A POLYMER BY CATALYTIC POLYMERIZATION OF A POLYMERIZABLE MASS COMPRISING AT LEAST ONE POLYMERIZABLE COMPOUND CONTAINING A >$CH2 GROUP WITH A CATALYTIC AMOUNT OF A REDOX SYSTEM CATALYST CONTAINING AT LEAST ONE PEROXIDE COMPOUND AND AT LEAST ONE ORGANIC SULFUR CONTAINING COMPOUND SELECTED FROM THE GROUP CONSISTING OF SULFINIC ACID COMPOUNDS, A-OXYSULFONES, THIOETHERS AND MERCHANTS, THE STEP WHICH COMPRISES CONDUCTING THE POLYMERIZATION OF SAID MASS IN THE PRESENCE OF A CATALYTIC AMOUNT OF A BETAINE DERIVA TIVE WHICH IS SOLUBLE IN SAID POLYMERIZABLE COMPOUND AND WHICH IS OF THE FORMULA
References Cited (Backward Citations)
GB318115A
Cited
US2740765A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1962-01-19 | 1962-07-21 | 1963-01-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-01-19 | 1966-07-21 | 1967-01-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-01-19 | 1970-07-21 | 1971-01-20 | $7700.00 | Window Closed / Lapsed |