US3407243A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Novel catalyst and process for preparing acyclic polyolefins
Assignee: DSM Copolymer Inc
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Filing: 1962-01-19
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Granted: 1968-10-22
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Expires: 1982-01-19
Abstract
No abstract record available.
Inventors
- 👤 Harold W Hyde
- 👤 Ross Van Volkenburgh
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 22:13
CPC Classifications
C; C07; C07C; C07C11/00; C07C11/21; B; B01; B01J; B01J31/00; B01J31/02; B01J31/12; B01J31/14; B01J31/146; C07C2/00; C07C2/02; C07C2/04; C07C2/38; C07C2/40; C07C2/403; C07C2/406; B01J2231/00; B01J2231/20; B01J2531/00; B01J2531/80; B01J2531/84; B01J2531/845; B01J31/04; B01J31/16; B01J31/22; B01J31/2204; B01J31/2208; B01J31/2226; B01J31/223; B01J31/2234; B01J31/26; B01J31/28; B01J31/30; C07C2531/00; C07C2531/02; C07C2531/04; C07C2531/12; C07C2531/14; C07C2531/16; C07C2531/22
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
116 words
A PROCESS FOR PREPARING ACYCLIC POLYOLEFINS COMPRISING REACTING BUTADIENE IN SOLUTION IN AN ORGANIC SOLVENT IN THE PRESENCE OF AN OLIGOMERIZATION CATALYST CONSISTING ESSENTIALLY OF THE REACTION PRODUCT PREPARED BY REACTING TOGETHER IN SOLUTION IN AN ORGANIC SOLVENT A BOROHYDRIDE COMPOUND AND A COBALT-CONTAINING COMPOUND IN THE PRESENCE OF BUTADIENE IN AN AMOUNT TO COMPLEX THE COBALT, THE BOROHYDRIDE COMPOUND AND THE COBALT-CONTAINING COMPOUND BEING PRESENT IN QUANTITIES TO PROVIDE A BH4-/COBALT RATIO GREATER THAN 2/3, AND THE BH4-/COBALT RATIO BEING BASED UPON THE NUMBER OF GRAM ION WEIGHTS OF BR4- PRESENT IN THE QUANTITY OF THE BOROHYDRIDE COMPOUND AND THE NUMBER OF GRAM ATOMIC WEIGHTS OF COBALT PRESENT IN THE QUANTITY OF THE COBALT-CONTAINING COMPOUND.
Claim 2
Dependent Claim
116 words
A PROCESS FOR PREPARING ACYCLIC POLYOLEFINS COMPRISING REACTING BUTADIENE IN SOLUTION IN AN ORGANIC SOLVENT IN THE PRESENCE OF AN OLIGOMERIZATION CATALYST CONSISTING ESSENTIALLY OF THE REACTION PRODUCT PREPARED BY REACTING TOGETHER IN SOLUTION IN AN ORGANIC SOLVENT A BOROHYDRIDE COMPOUND AND A COBALT-CONTAINING COMPOUND IN THE PRESENCE OF BUTADIENE IN AN AMOUNT TO COMPLEX THE COBALT, THE BOROHYDRIDE COMPOUND AND THE COBALT-CONTAINING COMPOUND BEING PRESENT IN QUANTITIES TO PROVIDE A BH4-/COBALT RATIO GREATER THAN 2/3, AND THE BH4-/COBALT RATIO BEING BASED UPON THE NUMBER OF GRAM ION WEIGHTS OF BR4- PRESENT IN THE QUANTITY OF THE BOROHYDRIDE COMPOUND AND THE NUMBER OF GRAM ATOMIC WEIGHTS OF COBALT PRESENT IN THE QUANTITY OF THE COBALT-CONTAINING COMPOUND.
References Cited (Backward Citations)
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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) | 1971-10-22 | 1972-04-22 | 1972-10-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-10-22 | 1976-04-22 | 1976-10-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-10-22 | 1980-04-22 | 1980-10-22 | $7700.00 | Window Closed / Lapsed |