US3149173A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Production of liquid oligomers of 1, 3-dienes
Assignee: BASF SE
•
Filing: 1960-12-21
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Granted: 1964-09-15
•
Expires: 1980-12-21
Abstract
No abstract record available.
Inventors
- 👤 Wittenberg Dietmar
- 👤 Mueller Herbert
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 15:15
CPC Classifications
C; C07; C07C; C07C2/00; C07C2/02; C07C2/42; C07C2/44; C07C2/46; C07C2/465; C07C2527/00; C07C2527/06; C07C2527/135; C07C2531/00; C07C2531/02; C07C2531/04; C07C2531/12; C07C2531/14
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
137 words
IN A PROCESS FOR THE PRODUCTION OF OLIGOMERS OF 1,3DIENES IN THE PRESENCE OF A CATALYST, THE IMPROVEMENT WHICH COMPRISES CONDUCTING SAID PROCESS WITH A CATALYST SYSTEM FORMED FROM : (A) A TITANIUM COMPOUND SELECTED FROM THE GROUP CONSISTING OF TITANIUM (IV) ACID ESTERS, TITANIUM HALIDES, TITANIUM (IV) ESTER HALIDES AND ORGANO-TITANIUM HALIDES; (B) AN ORGANYL-ALUMINUM HALIDE OF THE GENERAL FORMULA AL2RNX6-N IN WHICH R REPRESENTS A SUBSTITUENT SELECTED FROM THE GROUP CONSISTING OF ALIPHATIC AND AROMATIC HYDROCARBON RADICALS CONTAINING ONLY CARBON AND HYDROGEN ATOMS, X REPRESENTS HALOGEN AND N IS AN INTEGER OF FROM 1 TO 5, INCLUSIVE; AND (C) AT LEAST ONE MEMBER SELECTED FROM THE GROUP CONSISTING OF METALS OF GROUPS IA, IIA, IIB, IIIA AND IIIB OF THE PERIODIC SYSTEM, SALTS OF ALKALI AND ALKALINE EARTH METALS, AMINES, ETHERS, THIOETHERS AND ORGANIC PHOSPHINES.
Claim 2
Dependent Claim
137 words
IN A PROCESS FOR THE PRODUCTION OF OLIGOMERS OF 1,3DIENES IN THE PRESENCE OF A CATALYST, THE IMPROVEMENT WHICH COMPRISES CONDUCTING SAID PROCESS WITH A CATALYST SYSTEM FORMED FROM : (A) A TITANIUM COMPOUND SELECTED FROM THE GROUP CONSISTING OF TITANIUM (IV) ACID ESTERS, TITANIUM HALIDES, TITANIUM (IV) ESTER HALIDES AND ORGANO-TITANIUM HALIDES; (B) AN ORGANYL-ALUMINUM HALIDE OF THE GENERAL FORMULA AL2RNX6-N IN WHICH R REPRESENTS A SUBSTITUENT SELECTED FROM THE GROUP CONSISTING OF ALIPHATIC AND AROMATIC HYDROCARBON RADICALS CONTAINING ONLY CARBON AND HYDROGEN ATOMS, X REPRESENTS HALOGEN AND N IS AN INTEGER OF FROM 1 TO 5, INCLUSIVE; AND (C) AT LEAST ONE MEMBER SELECTED FROM THE GROUP CONSISTING OF METALS OF GROUPS IA, IIA, IIB, IIIA AND IIIB OF THE PERIODIC SYSTEM, SALTS OF ALKALI AND ALKALINE EARTH METALS, AMINES, ETHERS, THIOETHERS AND ORGANIC PHOSPHINES.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1967-09-15 | 1968-03-16 | 1968-09-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-09-15 | 1972-03-16 | 1972-09-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-09-15 | 1976-03-16 | 1976-09-15 | $7700.00 | Window Closed / Lapsed |