US3243418A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Ethylene/t-butyl aminoethyl methacrylate copolymers and coatings thereof
Assignee: Millennium Petrochemicals Inc
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Filing: 1963-02-28
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Granted: 1966-03-29
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Expires: 1983-02-28
Abstract
No abstract record available.
Inventors
- 👤 Robert P Shouse
- 👤 Jr Clarence J Vetter
- 👤 William E Daniel
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 08:01
CPC Classifications
C; C08; C08F; C08F220/00; C08F220/02; C08F220/10; C08F220/34
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
81 words
A PROCESS FOR COPOLYMERIZING ETHYLENE AND T-BUTYL AMINOETHYL METHACRYLATE WHICH COMPRISES REACTING A MIXTURE OF EHTYLENE AND ABOUT 0.5 TO ABOUT 5.0 WEIGHT PERCENT, BASED ON THE ETHYLENE FEED, OF T-BUTYL AMINOETHYL METHACRYLATE AT A TEMPERATURE BETWEEN 250* TO 500*F. AND A PRESSURE BETWEEN ABOUT 12,000 AND ABOUT 35,000 POUNDS PER SQUARE IONCH IN THE PRESENCE OF ABOUT 0.001 TO ABOUT 5 WEIGHT PERCENT, BASED ON THE ETHYLENE FEED, OF A FREE RADICAL COPOLYMERIZATION CATALYST IN A STIRRED CLOSED REACTION ZONE.
Claim 2
Dependent Claim
81 words
A PROCESS FOR COPOLYMERIZING ETHYLENE AND T-BUTYL AMINOETHYL METHACRYLATE WHICH COMPRISES REACTING A MIXTURE OF EHTYLENE AND ABOUT 0.5 TO ABOUT 5.0 WEIGHT PERCENT, BASED ON THE ETHYLENE FEED, OF T-BUTYL AMINOETHYL METHACRYLATE AT A TEMPERATURE BETWEEN 250* TO 500*F. AND A PRESSURE BETWEEN ABOUT 12,000 AND ABOUT 35,000 POUNDS PER SQUARE IONCH IN THE PRESENCE OF ABOUT 0.001 TO ABOUT 5 WEIGHT PERCENT, BASED ON THE ETHYLENE FEED, OF A FREE RADICAL COPOLYMERIZATION CATALYST IN A STIRRED CLOSED REACTION ZONE.
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) | 1969-03-28 | 1969-09-27 | 1970-03-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-03-28 | 1973-09-27 | 1974-03-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-03-28 | 1977-09-27 | 1978-03-29 | $7700.00 | Window Closed / Lapsed |