US3179613A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Metal salts of oligomeric styrene polymer in olefinic emulsion polymerization process
Assignee: BASF SE
•
Filing: 1962-09-13
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Granted: 1965-04-20
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Expires: 1982-09-13
Abstract
No abstract record available.
Inventors
- 👤 Guenther Wolfgang
- 👤 Ohlinger Helmut
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 14:59
CPC Classifications
C; C08; C08F; C08F2/00; C08F2/12; C08F2/16; C08F2/22; C08F2/24; C08F2/26; Y; Y10; Y10S; Y10S526/00; Y10S526/911
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
53 words
IN A PROCESS FOR THE PRODUCTION OF POLYMERS BY POLYMERIZATION OF ETHYLENICALLY UNSATURATED POLYMERIZABLE COMPOUNDS IN AQUEOUS DISPERSIONS IN THE PRESENCE OF RADICAL FORMING INITIATORS AND EMULSIFIERS, THE IMPROVEMENT WHICH COMPRISES USING AS EMULSIFIER 0.1 TO 4% BY WEIGHT, WITH REFERENCE TO THE COMPOUNDS TO BE POLYMERIZED, OF A COMPOUND OF THE FORMULA:
Claim 2
Dependent Claim
53 words
IN A PROCESS FOR THE PRODUCTION OF POLYMERS BY POLYMERIZATION OF ETHYLENICALLY UNSATURATED POLYMERIZABLE COMPOUNDS IN AQUEOUS DISPERSIONS IN THE PRESENCE OF RADICAL FORMING INITIATORS AND EMULSIFIERS, THE IMPROVEMENT WHICH COMPRISES USING AS EMULSIFIER 0.1 TO 4% BY WEIGHT, WITH REFERENCE TO THE COMPOUNDS TO BE POLYMERIZED, OF A COMPOUND OF THE FORMULA:
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) | 1968-04-19 | 1968-10-19 | 1969-04-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-04-19 | 1972-10-19 | 1973-04-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-04-19 | 1976-10-19 | 1977-04-20 | $7700.00 | Window Closed / Lapsed |