US2890191A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Rubber plasticized with a condensation product of alkene oxides and hydroxylated polymers of conjugated dienes, vulcanizates thereof, and method of making
Assignee: Phillips Petroleum Co
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Filing: 1956-08-02
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Granted: 1959-06-09
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Expires: 1976-08-02
Abstract
No abstract record available.
Inventors
- 👤 Lee O Edmonds
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 03:55
CPC Classifications
C; C08; C08L; C08L21/00; Y; Y10; Y10S; Y10S524/00; Y10S524/925
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
90 words
AS A NEW COMPOSITION, A RUBBER CONTAINING UNSATURATED CARBON TO CARBON BONDS INCORPORATED WITH A PLASTICIZER PROPORTION OF A PRODUCT OF CONDENSATION OF AN ALKENE OXIDE AND A HYDROXYLATED POLYMER OF A CONJUGATED DIENE, SAID PRODUCT OF CONDENSATION BEING FORMED BY CONDENSING SAID ALKENE OXIDE WITH SAID HYDROXYLATED POLYMER OF A CONJUGATED DIENE IN THE PRESENCE OF A QUATERNARY AMMONIUM HYDROXIDE AS A CATAYDT AT A TEMPERATURE IN THE RANGE OF 150-300* F. IN SUCH PROPORTIONS AND FOR SUCH A SUFFICIENT TIME EFFECTIVE TO PRODUCE SAID RESULTING PRODUCT OF CONDENSATION.
Claim 2
Dependent Claim
90 words
AS A NEW COMPOSITION, A RUBBER CONTAINING UNSATURATED CARBON TO CARBON BONDS INCORPORATED WITH A PLASTICIZER PROPORTION OF A PRODUCT OF CONDENSATION OF AN ALKENE OXIDE AND A HYDROXYLATED POLYMER OF A CONJUGATED DIENE, SAID PRODUCT OF CONDENSATION BEING FORMED BY CONDENSING SAID ALKENE OXIDE WITH SAID HYDROXYLATED POLYMER OF A CONJUGATED DIENE IN THE PRESENCE OF A QUATERNARY AMMONIUM HYDROXIDE AS A CATAYDT AT A TEMPERATURE IN THE RANGE OF 150-300* F. IN SUCH PROPORTIONS AND FOR SUCH A SUFFICIENT TIME EFFECTIVE TO PRODUCE SAID RESULTING PRODUCT OF CONDENSATION.
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) | 1962-06-08 | 1962-12-08 | 1963-06-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-06-08 | 1966-12-08 | 1967-06-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-06-08 | 1970-12-08 | 1971-06-09 | $7700.00 | Window Closed / Lapsed |