Patent US3351557A successfully refreshed from Google Patents.
US2903440A
Expired / Lapsed
US
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Thermo setting resin from a liquid butadiene polymer and styrene
Assignee: ExxonMobil Technology and Engineering Co
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Filing: 1958-04-08
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Granted: 1959-09-08
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Expires: 1978-04-08
Abstract
No abstract record available.
Inventors
- 👤 Randall G Heiligmann
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 16:33
CPC Classifications
C; C08; C08F; C08F36/00; C08F36/02; C08F36/04
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
64 words
A PROCESS FOR PREPARING A SOLID RESIN FROM A LIQUID SODIUM POLYMER OF 100 TO 50% BUTADIENE-1,3 AND O TO 50% STYRENE WHICH COMPRISES HEATING THE POLYMER AT A TEMPERATURE BETWEEN 110* C. AND 175*C. IN THE PRESENCE OF 2.0 TO 4.0% OF DITERTIARY BUTYL PEROXIDE AND 5 TO 40% OF A REACTIVE MONOMER CHOSEN FROM THE GROUP CONSISTING OF STYRENE AND VINYL TOLUENE.
Claim 2
Dependent Claim
64 words
A PROCESS FOR PREPARING A SOLID RESIN FROM A LIQUID SODIUM POLYMER OF 100 TO 50% BUTADIENE-1,3 AND O TO 50% STYRENE WHICH COMPRISES HEATING THE POLYMER AT A TEMPERATURE BETWEEN 110* C. AND 175*C. IN THE PRESENCE OF 2.0 TO 4.0% OF DITERTIARY BUTYL PEROXIDE AND 5 TO 40% OF A REACTIVE MONOMER CHOSEN FROM THE GROUP CONSISTING OF STYRENE AND VINYL TOLUENE.
References Cited (Backward Citations)
GB593072A
Cited
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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) | 1962-09-07 | 1963-03-09 | 1963-09-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-09-07 | 1967-03-09 | 1967-09-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-09-07 | 1971-03-09 | 1971-09-08 | $7700.00 | Window Closed / Lapsed |