US3271468A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process for the catalytic co-oligomerization of diolefins
Assignee: Studiengesellschaft Kohle gGmbH
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Filing: 1963-03-22
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Granted: 1966-09-06
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Expires: 1983-03-22
Abstract
No abstract record available.
Inventors
- 👤 Wilke Gunther
- 👤 Heimbach Paul
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 13:40
CPC Classifications
C; C07; C07C; C07C11/00; C07C11/21; C07C13/00; C07C13/02; C07C13/271; C07C13/273; C07C13/275; C07C13/277; C07C15/00; C07C15/20; C07C15/27; C07C15/28; C07C15/40; C07C15/42; C07C15/44; C07C2/00; C07C2/02; C07C2/04; C07C2/42; C07C2531/00; C07C2531/02; C07C2531/12; C07C2531/16; C07C2531/22; C07C2531/24; C07C2601/00; C07C2601/18; C07C2603/00; C07C2603/02; C07C2603/04; C07C2603/22; C07C2603/24
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
100 words
THE PROCESS WHICH COMPRISES CONTACTING (A) 1,3-DIOLEFIN AND (B) A MEMBER SELECTED FROM THE GROUP CONSISTING OF ETHYLENE, BUTYNE-(2) AND STYRENE WITH AN AMOUNT SUFFICIENT TO CATALYZE THE CO-OLIGOMERIZATION REACTION BETWEEN SAID 1,3-DIOLEFIN AND SAID GROUP MEMBER OF A CARBON MONOXIDE FREE ORGANO-METALLIC COMPLEX COMPOUND OF NICKEL, AND RECOVERING THE CO-OLIGOMER THUS PRODUCED. 17. 1,2 - DIMETHYL CYCLODECATRI - (1,4,8) - ENE HAVING A BOILING POINT OF 32-33*C./0.05 MM. HG AND A REFRACTIVE INDEX ND20, OF 1.5098. 18. 1 - PHENYL DECATRI- (1,4,9) - ENE HAVING A BOILING POINT OF 73-75*C./10-4 MM. HG. AND A REFRACTIVE INDEX, ND20, OF 1.5420.
Claim 2
Dependent Claim
100 words
THE PROCESS WHICH COMPRISES CONTACTING (A) 1,3-DIOLEFIN AND (B) A MEMBER SELECTED FROM THE GROUP CONSISTING OF ETHYLENE, BUTYNE-(2) AND STYRENE WITH AN AMOUNT SUFFICIENT TO CATALYZE THE CO-OLIGOMERIZATION REACTION BETWEEN SAID 1,3-DIOLEFIN AND SAID GROUP MEMBER OF A CARBON MONOXIDE FREE ORGANO-METALLIC COMPLEX COMPOUND OF NICKEL, AND RECOVERING THE CO-OLIGOMER THUS PRODUCED. 17. 1,2 - DIMETHYL CYCLODECATRI - (1,4,8) - ENE HAVING A BOILING POINT OF 32-33*C./0.05 MM. HG AND A REFRACTIVE INDEX ND20, OF 1.5098. 18. 1 - PHENYL DECATRI- (1,4,9) - ENE HAVING A BOILING POINT OF 73-75*C./10-4 MM. HG. AND A REFRACTIVE INDEX, ND20, OF 1.5420.
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) | 1969-09-05 | 1970-03-07 | 1970-09-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-09-05 | 1974-03-07 | 1974-09-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-09-05 | 1978-03-07 | 1978-09-06 | $7700.00 | Window Closed / Lapsed |