US3231627A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process for preparing cyclododecatrienes and catalyst therefor
Assignee: DSM Copolymer Inc
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Filing: 1962-02-23
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Granted: 1966-01-25
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Expires: 1982-02-23
Abstract
No abstract record available.
Inventors
- 👤 Grover C Royston
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 01:51
CPC Classifications
C; C07; C07C; C07C13/00; C07C13/02; C07C13/273; C07C13/275; C07C13/277; B; B01; B01J; B01J31/00; B01J31/02; B01J31/12; B01J31/14; B01J31/143; B01J31/16; B01J31/22; B01J31/2204; B01J31/2208; B01J31/2226; B01J31/223; B01J31/2234; C07C2/00; C07C2/02; C07C2/42; C07C2/44; C07C2/46; C07C2/465; B01J2231/00; B01J2231/30; B01J2231/32; B01J2231/324; B01J2231/328; B01J2531/00; B01J2531/60; B01J2531/62; C07C2531/00; C07C2531/02; C07C2531/12; C07C2531/14; C07C2531/16; C07C2531/22; C07C2601/00; C07C2601/18; C07C2601/20
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
94 words
A PROCESS FOR PREPARING A CYCLODODECATRIENE COMPRISING REACTING AN ACYCLIC CONJUGATED DIOLEFIN WHICH FORMS A CYCLIC TRIMER IN THE PRESENCE OF A CATALYTIC AMOUNT OF A CATALYST, THE CATALYST BEING PREPARED BY REACTING TOGETHER A CATALYTICALLY EFFECTIVE AMOUNT OF AT LEAST ONE CATALYSTFORMING BETA-DIKETONE COMPLEX OF CHROMIUM AND AT LEAST ONE CATALYST-FORMING ORGANOALUMINUM HALIDE MATERIAL HAVING THE COMPOSITION RXALXY, WHERE R IS SELECTED FROM THE GROUP CONSISTING OF MONOVALENT ORGANIC RADICALS AND MIXTURES THEREOF WITH HYDROGEN, X IS HALOGEN, X+Y ARE 3 AND THE RATIO OF X TO Y VARIES BETWEEN 2.1:09 AND 2.9:0.1.
Claim 2
Dependent Claim
94 words
A PROCESS FOR PREPARING A CYCLODODECATRIENE COMPRISING REACTING AN ACYCLIC CONJUGATED DIOLEFIN WHICH FORMS A CYCLIC TRIMER IN THE PRESENCE OF A CATALYTIC AMOUNT OF A CATALYST, THE CATALYST BEING PREPARED BY REACTING TOGETHER A CATALYTICALLY EFFECTIVE AMOUNT OF AT LEAST ONE CATALYSTFORMING BETA-DIKETONE COMPLEX OF CHROMIUM AND AT LEAST ONE CATALYST-FORMING ORGANOALUMINUM HALIDE MATERIAL HAVING THE COMPOSITION RXALXY, WHERE R IS SELECTED FROM THE GROUP CONSISTING OF MONOVALENT ORGANIC RADICALS AND MIXTURES THEREOF WITH HYDROGEN, X IS HALOGEN, X+Y ARE 3 AND THE RATIO OF X TO Y VARIES BETWEEN 2.1:09 AND 2.9:0.1.
Claim 3
Dependent Claim
68 words
THE CATALYTICALLY ACTIVE PRODUCT OF THE REACTION OF A CATALYTICALLY EFFECTIVE AMOUNT OF AT LEAST ONE CATALYSTFORMING BETA-DIKETONE COMPLEX OF CHROMIUM AND AT LEAST ONE CATALYST-FORMING ORGANOALUMINUM HALIDE MATERIAL HAVING THE COMPOSITION RXALXY, WHERE R IS SELECTED FROM THE GROUP CONSISTING OF MONOVALENT ORGANIC RADICALS AND MIXTURES THEREOF WITH HYDROGEN, X IS HALOGEN, X+Y ARE 3 AND THE RATIO OF X TO Y VARIES BETWEEN 2.1:0.9 AND 2.9:0.1.
Claim 4
Dependent Claim
68 words
THE CATALYTICALLY ACTIVE PRODUCT OF THE REACTION OF A CATALYTICALLY EFFECTIVE AMOUNT OF AT LEAST ONE CATALYSTFORMING BETA-DIKETONE COMPLEX OF CHROMIUM AND AT LEAST ONE CATALYST-FORMING ORGANOALUMINUM HALIDE MATERIAL HAVING THE COMPOSITION RXALXY, WHERE R IS SELECTED FROM THE GROUP CONSISTING OF MONOVALENT ORGANIC RADICALS AND MIXTURES THEREOF WITH HYDROGEN, X IS HALOGEN, X+Y ARE 3 AND THE RATIO OF X TO Y VARIES BETWEEN 2.1:0.9 AND 2.9:0.1.
References Cited (Backward Citations)
US2943063A
Cited
US2979543A
Cited
US2938890A
Cited
DE1080547B
Cited
GB872348A
Cited
US3167593A
Cited
US3076045A
Cited
US2993883A
Cited
US3157708A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1969-01-24 | 1969-07-26 | 1970-01-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-01-24 | 1973-07-26 | 1974-01-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-01-24 | 1977-07-26 | 1978-01-25 | $7700.00 | Window Closed / Lapsed |