US2824145A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Catalytic process for the preparation of long chain alkyl aromatic compounds
Assignee: Eastman Kodak Co
•
Filing: 1955-12-14
•
Granted: 1958-02-18
•
Expires: 1975-12-14
Abstract
No abstract record available.
Inventors
- 👤 Marvin A Mccall
- 👤 Jr Harry W Coover
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 13:12
CPC Classifications
C; C07; C07C; C07C2/00; C07C2/54; C07C2/64; C07C2/66; C07C2/68; C07C2527/00; C07C2527/06; C07C2527/135; C07C2531/00; C07C2531/02; C07C2531/12; C07C2531/14; C07C2531/26; C07C2531/38; Y; Y10; Y10S; Y10S260/00; Y10S260/25
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
105 words
THE METHOD OF PRODUCING A LONG CHAIN ALKYL AROMATIC HYDROCARBON WHICH COMPRISES REACTING AN AROMATIC HYDROCARBON WITH AN A-MONOOLEFIN IN THE PRESENCE OF A CATALYTIC MIXTURE OF A COMPOUND OF THE FORMULA R,ALXN WHEREIN R IS A MEMBER OF THE GROUP CONSISTING OF HYDROGEN, PHENYL AND ALKYL GROUPS OF 1-12 CARBON ATOMS, X IS A HALOGEN ATOM, AND M AND N ARE INTEGERS NOT GREATER THAN 2, ONE OF THE INTEGERS M AND N ALWAYS BEING 1 AND THE OTHER ALWAYS BEING 2, AND A TITANIUM HALIDE CONTAINING AT LEAST THREE HALOGEN ATOMS, AND TITANIUM HALIDE BEING PRESENT IN MOLAR EXCESS OVER SAID RMALXN COMPOUND.
Claim 2
Independent Claim
105 words
THE METHOD OF PRODUCING A LONG CHAIN ALKYL AROMATIC HYDROCARBON WHICH COMPRISES REACTING AN AROMATIC HYDROCARBON WITH AN A-MONOOLEFIN IN THE PRESENCE OF A CATALYTIC MIXTURE OF A COMPOUND OF THE FORMULA R,ALXN WHEREIN R IS A MEMBER OF THE GROUP CONSISTING OF HYDROGEN, PHENYL AND ALKYL GROUPS OF 1-12 CARBON ATOMS, X IS A HALOGEN ATOM, AND M AND N ARE INTEGERS NOT GREATER THAN 2, ONE OF THE INTEGERS M AND N ALWAYS BEING 1 AND THE OTHER ALWAYS BEING 2, AND A TITANIUM HALIDE CONTAINING AT LEAST THREE HALOGEN ATOMS, AND TITANIUM HALIDE BEING PRESENT IN MOLAR EXCESS OVER SAID RMALXN COMPOUND.
References Cited (Backward Citations)
US2057432A
Cited
US2348701A
Cited
US2388428A
Cited
US2440498A
Cited
US2683760A
Cited
US2772244A
Cited
US2721189A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1961-02-17 | 1961-08-19 | 1962-02-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-02-17 | 1965-08-19 | 1966-02-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-02-17 | 1969-08-19 | 1970-02-18 | $7700.00 | Window Closed / Lapsed |