Patent US4580256A successfully refreshed from Google Patents.
US2836633A
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US
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Nuclear alkylation of certain aromatic hydrocarbons with alkali metals as catalysts
Assignee: Standard Oil Co
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Filing: 1954-09-30
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Granted: 1958-05-27
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Expires: 1974-09-30
Abstract
No abstract record available.
Inventors
- 👤 Donald L Esmay
- 👤 Jr Peter Fotis
- 👤 Carl E Johnson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 15:58
CPC Classifications
C; C07; C07C; C07C2/00; C07C2/54; C07C2/64; C07C2/66; C07C2521/00; C07C2521/02; C07C2521/04; C07C2521/18; C07C2523/00; C07C2523/02; C07C2523/04
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
114 words
A PROCESS FOR THE NUCLEAR ALKYLATION OF AN AROMATIC HYDROCARBON SELECTED FROM THE CLASS CONSISTING OF BENZENE AND BENZENE SUBSTITUTED ONLY BY AT LEAST ONE TERTIARY SATURATED HYDROCARBON RADICAL AND CONTAINING AN ALKYLATABLE NUCLEAR CARBON ATOM, WHICH PROCESS COMPRISES CONTACTING A HYDROCARBON FEED STOCK WHOSE REACTIVE COMPONENTS INITIALLY CONSIST ESSENTIALLY OF SAID AROMATIC HYDROCARBON AND ETHYLENE WITH A CATALYST CONSISTING ESSENTIALLY OF A MATERIAL SELECTED FROM THE GROUP CONSISTING OF ALKALI METALS AND ALKALI METALS IN CONJUCTION WITH A SOLID SUPPORTING MATERIAL SELECTED FROM THE CLASS CONSISTING OF ACTIVATED CARBON AND AN ACTIVATED ALUMINA-TYPE ADSORBENT, EFFECTING SAID CONTACTING UNDER NUCLEAR ALKYLATION CONDITIONS, AND RECOVERING AN ALKYLATED AROMATIC HYDROCARBON THUS PRODUCED FROM THE REACTION MIXTURE.
Claim 2
Dependent Claim
114 words
A PROCESS FOR THE NUCLEAR ALKYLATION OF AN AROMATIC HYDROCARBON SELECTED FROM THE CLASS CONSISTING OF BENZENE AND BENZENE SUBSTITUTED ONLY BY AT LEAST ONE TERTIARY SATURATED HYDROCARBON RADICAL AND CONTAINING AN ALKYLATABLE NUCLEAR CARBON ATOM, WHICH PROCESS COMPRISES CONTACTING A HYDROCARBON FEED STOCK WHOSE REACTIVE COMPONENTS INITIALLY CONSIST ESSENTIALLY OF SAID AROMATIC HYDROCARBON AND ETHYLENE WITH A CATALYST CONSISTING ESSENTIALLY OF A MATERIAL SELECTED FROM THE GROUP CONSISTING OF ALKALI METALS AND ALKALI METALS IN CONJUCTION WITH A SOLID SUPPORTING MATERIAL SELECTED FROM THE CLASS CONSISTING OF ACTIVATED CARBON AND AN ACTIVATED ALUMINA-TYPE ADSORBENT, EFFECTING SAID CONTACTING UNDER NUCLEAR ALKYLATION CONDITIONS, AND RECOVERING AN ALKYLATED AROMATIC HYDROCARBON THUS PRODUCED FROM THE REACTION MIXTURE.
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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) | 1961-05-26 | 1961-11-25 | 1962-05-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-05-26 | 1965-11-25 | 1966-05-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-05-26 | 1969-11-25 | 1970-05-27 | $7700.00 | Window Closed / Lapsed |