US3591572A
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Polymerization process using n-hydrocarbyl - n - methylene sulfonates as dispersing agents
Assignee: Stauffer Chemical Co
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Filing: 1968-06-19
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Granted: 1971-07-06
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Expires: 1988-06-19
Abstract
Abstract THE INVENTION IS A PROCESS FOR PREPARING POLYMERS BY DISPERSION POLYMERIZATION TECHNIQUES USING AN N-HYDROCARBYL N-METHYLENE SULFONATE AS A DISPERSING AGENT.
Inventors
- 👤 Walter Stamm
- 👤 Eugene H Uhing
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 02:10
CPC Classifications
C; C08; C08F; C08F14/00; C08F14/02; C08F14/04; C08F14/06; C08F2/00; C08F2/12; C08F2/16; C08F2/22; C08F2/24; C08F2/26; C08F36/00; C08F36/02; C08F36/04
Claims Analysis
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References Cited (Backward Citations)
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1974-07-05 | 1975-01-04 | 1975-07-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-07-05 | 1979-01-04 | 1979-07-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-07-05 | 1983-01-04 | 1983-07-06 | $7700.00 | Window Closed / Lapsed |