US3585175A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process for emulsion polymerization of a mono-olefin,a vinyl ester and crotonic acid
Assignee: Monsanto Co
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Filing: 1968-08-27
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Granted: 1971-06-15
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Expires: 1988-08-27
Abstract
Abstract DISCLOSED HEREIN IS AN IMPROVEMENT IN A PROCESS FOR THE EMULSION INTERPOLYMERIZATION AT PRESSURES OF LESS THAN ABOUT 1500 P.S.I. OF AT LEAST ONE MONOLEFIN THAT EXISTS IN THE GASEOUS STATE AT 20*C. AND ONE ATMOSPHERE PRESSURE AND AT LEAST ONE INTERPOLYMERIZABLE VINYL ESTER CONTAINING 3-6 CARBON ATOMS, WHEREIN THE MOLE FRACTION OF VINYL ESTER IN THE FINAL RESIN EXCEEDS THE MOLE FRACTION OF MONOOLEFIN, WHEREIN THE IMPROVEMENT COMPRISES INTERPOLYMERIZING THEREWITH AT LEAST ABOUT 0.1 PERCENT BY WEIGHT, BASED UPON THE WEIGHT OF THE POLYMER, OF CROTONIC ACID. AN INTERPOLYMER OF MONO-OLEFIN, VINYL ESTER AND CROTONIC ACID IS ALSO DISCLOSED.
Inventors
- 👤 Albert E Corey
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 21:53
CPC Classifications
C; C08; C08F; C08F218/00; C08F218/02; C08F218/04; Y; Y10; Y10S; Y10S526/00; Y10S526/915
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1974-06-14 | 1974-12-14 | 1975-06-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-06-14 | 1978-12-14 | 1979-06-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-06-14 | 1982-12-14 | 1983-06-15 | $7700.00 | Window Closed / Lapsed |