US3333016A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Polymerization process
Assignee: Monsanto Co
•
Filing: 1963-01-28
•
Granted: 1967-07-25
•
Expires: 1983-01-28
Abstract
No abstract record available.
Inventors
- 👤 Robert G Schultz
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 02:30
CPC Classifications
C; C07; C07C; C07C2/00; C07C2/02; C07C2/04; C07C2/06; C07C2/08; C07C2/10; B; B01; B01J; B01J27/00; B01J27/20; B01J27/22; C07C2521/00; C07C2521/18; C07C2523/00; C07C2523/70; C07C2523/74; C07C2523/75; Y; Y10; Y10S; Y10S585/00; Y10S585/8995; Y10S585/906
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
120 words
A METHOD FOR PREPARING LOW-BOILING SUBSTANTIALLY LINEAR LIQUID OLEFINS WHICH COMPRISES POLYMERIZING A NORMALLY GASEOUS ALPHA-OLEFIN OF FROM 2 TO 3 CARBON ATOMS AT A TEMPERATURE OF FROM -10* TO AOUT 200*C. USING A CATTALYST PREPARED BY TREATING AN ACTIVATED CARBON WITH A GAS CONSISTING OF ONE SELECTED FROM THE GROUP CONSISTING OF HYDROGEN, NITROGEN, AND NITROGEN-HYDROGEN MIXTURES, IMPREGNATING THE GAS TREATED CARBON WITH AN AQUEOUS SOLUTION OF AN OXYGEN CONTAINING ACID SALT OF COBALT CAPABLE OF BEING DECOMPOSED TO COBALT OXIDE WHEN SUBJECTED TO HEATING AT TEMPERATURES NOT OVER 300*C., DRYING THE COBALT SALT-IMPREGNATED GAS TREATED CARBON THUS OBTAINED, AND HEATING THE COBALT SALT IMPREGNATED CARBON THUS OBTAINED TO TEMPERATURES OF FROM 200*C. TO 550*C. IN AN INERT GAS.
Claim 2
Independent Claim
120 words
A METHOD FOR PREPARING LOW-BOILING SUBSTANTIALLY LINEAR LIQUID OLEFINS WHICH COMPRISES POLYMERIZING A NORMALLY GASEOUS ALPHA-OLEFIN OF FROM 2 TO 3 CARBON ATOMS AT A TEMPERATURE OF FROM -10* TO AOUT 200*C. USING A CATTALYST PREPARED BY TREATING AN ACTIVATED CARBON WITH A GAS CONSISTING OF ONE SELECTED FROM THE GROUP CONSISTING OF HYDROGEN, NITROGEN, AND NITROGEN-HYDROGEN MIXTURES, IMPREGNATING THE GAS TREATED CARBON WITH AN AQUEOUS SOLUTION OF AN OXYGEN CONTAINING ACID SALT OF COBALT CAPABLE OF BEING DECOMPOSED TO COBALT OXIDE WHEN SUBJECTED TO HEATING AT TEMPERATURES NOT OVER 300*C., DRYING THE COBALT SALT-IMPREGNATED GAS TREATED CARBON THUS OBTAINED, AND HEATING THE COBALT SALT IMPREGNATED CARBON THUS OBTAINED TO TEMPERATURES OF FROM 200*C. TO 550*C. IN AN INERT GAS.
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) | 1970-07-24 | 1971-01-23 | 1971-07-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-07-24 | 1975-01-23 | 1975-07-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-07-24 | 1979-01-23 | 1979-07-25 | $7700.00 | Window Closed / Lapsed |