US3145194A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process for polymerization or copolymerization of olefinically-unsaturated organic compounds
Assignee: Wacker Chemie AG
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Filing: 1961-11-22
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Granted: 1964-08-18
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Expires: 1981-11-22
Abstract
No abstract record available.
Inventors
- 👤 Heckmaier Joseph
- 👤 Bergmeister Eduard
- 👤 Beier Gerhard
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 17:46
CPC Classifications
G; G01; G01N; G01N1/00; G01N1/28; G01N1/2806; C; C08; C08F; C08F36/00; C08F36/02; C08F36/04; C08F4/00; C08F4/06; C08F4/28; Y; Y10; Y10S; Y10S526/00; Y10S526/905
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
131 words
A PROCESS FOR THE PRODUCTION OF A POLYMERIZATE SELECTED FROM THE GROUP CONSISTING OF HOMOPOLYMERIZATES AND COPOLYMERIZATES WHICH COMPRISES THE STEPS OF REACTING OLEFINICALLY UNSATURATED ORGANIC COMPOUNDS POLYMERIZABLE WITH THE AID OF FREE-RADICAL FORMING COMPOUNDS, IN AN AQUEOUS DISPERSION IN THE PRESENCE OF A REDOX POLYMERIZATION CATALYST SYSTEM OF (1) AN OXIDIZING AGENT SELECTED FROM THE GROUP CONSISTING OF INORGANIC PER-COMPOUNDS, ORGANIC PEROXIDES AND ORGANIC HYDROPEROXIDES AND (2) FREE HYDROGEN IN A PARTIAL PRESSURE OF FROM 0.01 TO 100 ATMOSPHERES (ABSOLUTE) WITH SUBSTANTIAL EXCLUSION OF OXYGEN, IN COMBINATION WITH A COLLOIDALLY DISPERSED NOBLE METAL SELECTED FROM THE GROUP CONSISTING OF PLATINUM, PALLADIUM, RHODIUM, RUTHENIUM, OSMIUM AND IRIDIUM IN WATER, AS A REDUCING AGENT, AT A TEMPERATURE BETWEEN -100*C. AND BELOW THE DECOMPOSITION TEMPERATURE OF SAID OXIDIZING AGENT AND RECOVERING SAID POLYMERIZATE.
Claim 2
Dependent Claim
131 words
A PROCESS FOR THE PRODUCTION OF A POLYMERIZATE SELECTED FROM THE GROUP CONSISTING OF HOMOPOLYMERIZATES AND COPOLYMERIZATES WHICH COMPRISES THE STEPS OF REACTING OLEFINICALLY UNSATURATED ORGANIC COMPOUNDS POLYMERIZABLE WITH THE AID OF FREE-RADICAL FORMING COMPOUNDS, IN AN AQUEOUS DISPERSION IN THE PRESENCE OF A REDOX POLYMERIZATION CATALYST SYSTEM OF (1) AN OXIDIZING AGENT SELECTED FROM THE GROUP CONSISTING OF INORGANIC PER-COMPOUNDS, ORGANIC PEROXIDES AND ORGANIC HYDROPEROXIDES AND (2) FREE HYDROGEN IN A PARTIAL PRESSURE OF FROM 0.01 TO 100 ATMOSPHERES (ABSOLUTE) WITH SUBSTANTIAL EXCLUSION OF OXYGEN, IN COMBINATION WITH A COLLOIDALLY DISPERSED NOBLE METAL SELECTED FROM THE GROUP CONSISTING OF PLATINUM, PALLADIUM, RHODIUM, RUTHENIUM, OSMIUM AND IRIDIUM IN WATER, AS A REDUCING AGENT, AT A TEMPERATURE BETWEEN -100*C. AND BELOW THE DECOMPOSITION TEMPERATURE OF SAID OXIDIZING AGENT AND RECOVERING SAID POLYMERIZATE.
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) | 1967-08-18 | 1968-02-17 | 1968-08-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-08-18 | 1972-02-17 | 1972-08-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-08-18 | 1976-02-17 | 1976-08-18 | $7700.00 | Window Closed / Lapsed |