US3155740A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Hydrogenation of olefinic polymers
Assignee: Sunoco Inc
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Filing: 1962-05-28
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Granted: 1964-11-03
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Expires: 1982-05-28
Abstract
No abstract record available.
Inventors
- 👤 Schneider Abraham
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 08:30
CPC Classifications
C; C07; C07C; C07C5/00; C07C5/02; C07C5/03; C07C2/00; C07C2/76; C08; C08F; C08F8/00; C08F8/04
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
97 words
METHOD OF HYDROGENATING BRANCHED CHAIN POLYMERS OF ALIPHATIC MONOOLEFINS WHICH POLYMERS HAVE SUBSTANTIAL SOLUCILITY IN ALIPHATIC HYDROCARBONS WHICH COMPRISES CONTACTING AN ADMISTURE OF SUCH POLYMERS AND A SATURATE HYDROCARBON STOCK CONTAINING AT LEAST ONE ALKYLCYCLOPENTANE OF THE C6-C13 RANGE CONTAINING AT LEAST ONE TERTIARY CARBON ATOM IN THE CYCLOPENTYL RING AT A TEMPERATURE IN THE RANGE OF -30 TO +50*C. WITH SULFURIC ACID HAVING STRENGTH OF 88-100%, SEPARATING THE MIXTURE INTO AN ACID PHASE AND A HYDROCARBON PHASE, AND RECOVERING FROM THE HYDROCARBON PHASE HYDROGENATEDPRODUCT HAVING THE SAME NUMBER OF CARBON ATOMS AS THE ORIGINAL UNSATURATED POLYMERS.
Claim 2
Dependent Claim
97 words
METHOD OF HYDROGENATING BRANCHED CHAIN POLYMERS OF ALIPHATIC MONOOLEFINS WHICH POLYMERS HAVE SUBSTANTIAL SOLUCILITY IN ALIPHATIC HYDROCARBONS WHICH COMPRISES CONTACTING AN ADMISTURE OF SUCH POLYMERS AND A SATURATE HYDROCARBON STOCK CONTAINING AT LEAST ONE ALKYLCYCLOPENTANE OF THE C6-C13 RANGE CONTAINING AT LEAST ONE TERTIARY CARBON ATOM IN THE CYCLOPENTYL RING AT A TEMPERATURE IN THE RANGE OF -30 TO +50*C. WITH SULFURIC ACID HAVING STRENGTH OF 88-100%, SEPARATING THE MIXTURE INTO AN ACID PHASE AND A HYDROCARBON PHASE, AND RECOVERING FROM THE HYDROCARBON PHASE HYDROGENATEDPRODUCT HAVING THE SAME NUMBER OF CARBON ATOMS AS THE ORIGINAL UNSATURATED POLYMERS.
References Cited (Backward Citations)
US2721832A
Cited
US3080436A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1967-11-03 | 1968-05-04 | 1968-11-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-11-03 | 1972-05-04 | 1972-11-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-11-03 | 1976-05-04 | 1976-11-03 | $7700.00 | Window Closed / Lapsed |