US3709953A
Expired / Lapsed
US
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Process for dimerization,codimerization,polymerization and copolymerization of mono-olefines
Assignee: Sentralinstitutt for Industriell Forskning
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Filing: 1970-01-09
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Granted: 1973-01-09
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Expires: 1990-01-09
Abstract
Abstract THE INVENTION RELATES TO A PROCESS FOR THE PREPARATION OF MONO-OLEFINES HAVING A HIGH CONTENT OF B-OLEFINES IN THE RANGE C4-C50 BY DIMERIZATION, CODIMERIZATION, POLYMERIZATION AND COPOLYMERIZATION OF MONO-OLEFINES FROM THE RANGE C2-C15. THE CONVERSION IS PERFORMED IN THE PRESENCE OF A CATALYTIC MIXTURE OF A COMPOUND OF A METAL FROM THE 8TH SUB-GROUP OF THE PERIODIC TABLE, A LEWIS ACID AND, IF DESIRED, A LEWIS BASE AND/OR ELECTRON DONORACCEPTOR COMPOUNDS THEREOF.
Inventors
- 👤 N Bergem
- 👤 U Blindheim
- 👤 O Onsager
- 👤 H Wang
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 10:37
CPC Classifications
C; C07; C07C; C07C2/00; C07C2/02; C07C2/04; C07C2/06; C07C2/08; C07C2/26; C07C2/30; C07C2/14; C07C2/20; C07C2/22; C07C2/32; C07C2/34; C07C2/36; C07C2523/00; C07C2523/70; C07C2523/76; C07C2527/00; C07C2527/02; C07C2527/053; C07C2527/06; C07C2527/08; C07C2527/125; C07C2527/126; C07C2531/00; C07C2531/02; C07C2531/04; C07C2531/12; C07C2531/14; C07C2531/16; C07C2531/22; C07C2531/24; C07C2531/26; C07C2531/28; C07C2531/30
Claims Analysis
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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) | 1976-01-09 | 1976-07-10 | 1977-01-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-01-09 | 1980-07-10 | 1981-01-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-01-09 | 1984-07-10 | 1985-01-09 | $7700.00 | Window Closed / Lapsed |