Patent US3201484A successfully refreshed from Google Patents.
US3201484A
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Reactions of conjugated dienes
Assignee: Union Carbide Corp
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Filing: 1962-10-16
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Granted: 1965-08-17
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Expires: 1982-10-16
Abstract
No abstract record available.
Inventors
- 👤 William R Myers
- 👤 Roy L Pruett
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 19:01
CPC Classifications
C; C07; C07C; C07C2/00; C07C2/02; C07C2/50; C07C2/52; C07C2/42; C07C2/44; C07C2/46; C07C2/465; C07C2531/00; C07C2531/16; C07C2531/22
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
82 words
A PROCESS WHICH COMPRISES CONDUCTING A DIELS-ALDER REACTION IN THE PRESENCE OF FROM ABOUT 0.001 TO ABOUT 25 WEIGHT PERCENT, BASED ON THE WEIGHT OF THE REACTANTS, OF A COMPOUND SELECTED FROM THE GROUP CONSISTING OF CYCLOPENTADIENYL NICKEL COMPOUNDS AND CYCLOPENTADIENYL COBALT COMPOUNDS, SAID COMPOUND BEING CAPABLE OF FORMING A HOMOGENEOUS PHSE WITH THE LIQUID PHASE REACTION COMPONENTS; AT A TEMPERATURE OF FROM ABOUT - 10*C. TO ABOUT 270*C.; AND FOR A PERIOD OF TIME SUFFICIENT TO PRODUCE A DIELS-ALDER ADDITION PRODUCT.
Claim 2
Dependent Claim
82 words
A PROCESS WHICH COMPRISES CONDUCTING A DIELS-ALDER REACTION IN THE PRESENCE OF FROM ABOUT 0.001 TO ABOUT 25 WEIGHT PERCENT, BASED ON THE WEIGHT OF THE REACTANTS, OF A COMPOUND SELECTED FROM THE GROUP CONSISTING OF CYCLOPENTADIENYL NICKEL COMPOUNDS AND CYCLOPENTADIENYL COBALT COMPOUNDS, SAID COMPOUND BEING CAPABLE OF FORMING A HOMOGENEOUS PHSE WITH THE LIQUID PHASE REACTION COMPONENTS; AT A TEMPERATURE OF FROM ABOUT - 10*C. TO ABOUT 270*C.; AND FOR A PERIOD OF TIME SUFFICIENT TO PRODUCE A DIELS-ALDER ADDITION PRODUCT.
Claim 3
Dependent Claim
77 words
A PROCESS WHICH COMPRISES CONTACTING A CONJUGATED DIENE WITH FROM ABOUT 0.5 TO ABOUT25 WEIGHT PERCENT, BASED ON THE WEIGHT OF SAID CONJUGATED DIENE, OF A COMPOUND SELECTED FROM THE GROUP CONSISTING OF CYCLOPENTADIENYL NICKEL COMPOUNDS AND CYCLOPENTADIENYL COBALT COMPOUNDS, SAID COMPOUNDS BEING CAPABLE OF FORMING A HOMOGENEOUS PHASE WITH THE LIQUID PHASE REACTION COMPONENTS; AT A TEMPERATURE OF FROM ABOUT 100*C. TO ABOUT 220*C.; AND FOR A PERIOD OF TIME SUFFICIENT TO PRODUCE A 1,2-DIVINYLCYCLOBUTANE PRODUCT.
Claim 4
Dependent Claim
77 words
A PROCESS WHICH COMPRISES CONTACTING A CONJUGATED DIENE WITH FROM ABOUT 0.5 TO ABOUT25 WEIGHT PERCENT, BASED ON THE WEIGHT OF SAID CONJUGATED DIENE, OF A COMPOUND SELECTED FROM THE GROUP CONSISTING OF CYCLOPENTADIENYL NICKEL COMPOUNDS AND CYCLOPENTADIENYL COBALT COMPOUNDS, SAID COMPOUNDS BEING CAPABLE OF FORMING A HOMOGENEOUS PHASE WITH THE LIQUID PHASE REACTION COMPONENTS; AT A TEMPERATURE OF FROM ABOUT 100*C. TO ABOUT 220*C.; AND FOR A PERIOD OF TIME SUFFICIENT TO PRODUCE A 1,2-DIVINYLCYCLOBUTANE PRODUCT.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1968-08-16 | 1969-02-15 | 1969-08-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-08-16 | 1973-02-15 | 1973-08-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-08-16 | 1977-02-15 | 1977-08-17 | $7700.00 | Window Closed / Lapsed |