US3306948A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process for the preparation of 1,4-dienes
Assignee: EIDP Inc
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Filing: 1964-01-17
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Granted: 1967-02-28
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Expires: 1984-01-17
Abstract
No abstract record available.
Inventors
- 👤 Kealy Thomas Joseph
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 14:48
CPC Classifications
G; G21; G21C; G21C15/00; G21C15/02; G21C15/04; B; B01; B01J; B01J31/00; B01J31/02; B01J31/12; B01J31/14; B01J31/143; B01J31/16; B01J31/18; B01J31/1845; B01J31/185; B01J31/20; B01J31/24; C; C07; C07C; C07C2/00; C07C2/02; C07C2/04; F; F28; F28F; F28F1/00; F28F1/10; F28F1/12; F28F1/14; F28F1/16; G21C3/00; G21C3/02; G21C3/04; G21C3/06; G21C3/08; B01J2531/00; B01J2531/80; B01J2531/84; B01J2531/847; C07C2531/00; C07C2531/02; C07C2531/12; C07C2531/14; C07C2531/16; C07C2531/22; C07C2531/24; Y; Y02; Y02E; Y02E30/00; Y02E30/30
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
187 words
A PROCESS FOR THE PREPARATION OF 1,4-DIENES, COMPRISING CONTACTING AND REACTING AN ALPHA-MONOOLEFIN OF THE FORMULA R''''-CH=CH2, WHEREIN R'''' IS A RADICAL SELECTED FROM THE GROUP CONSISTING OF H AND C1-C4 ALKYL, AND A CONJUGATED DIENE WHICH IS CO-DIMERIZABLE THEREWITH TO FORM A PRODUCT FREE OF ALLYLIC HALIDE, SAID DIENE CONTAINING UP TO 16 CARBON ATOMS, IN CONTACT WITH A CATALYTIC AMOUNT OF A CARALYST MADE BY COMBINING (A) AT LEAST TWO MOLAR PROPORTIONS OF AT LEAST ONE ORGANO METALLIC COMPOUND OF THE FORMULA RMXN, WHEREIN R IS A RADICAL SELECTED FROM THE GROUP CONSISTING OF ALKYL, ARYL AND ARALKYL, M IS A METAL SELECTED FROM THE GROUP CONSISTING OF ALUMINUM, ZINC, CADMIUM, AND MAGNESIUM, N IS AN INTEGER REPRESENTING THE NUMBER OF X GROUPS REQUIRED FOR VALENCE SATISFACTION AND X IS INDEPENDENTLY SELECTED FROM THE GROUP CONSISTING OF ALKYL, ARYL, ARALKYL, CHLORINE, AND BROMINE, WITH (B) A MOLAR PROPORTION OF AT LEAST ONE NICKEL COMPUND CONTAINING AT LEAST ONE MONODENDATE PHOSPHOROUS III LIGAND, SAID NICKEL COMPOUND BEING SELECTED FROM THE GROUP CONSISTING OF NICKEL HALIDE, NITRATE, AND CARBONYL, AND OBTAINING A 1,4-DIENE AS A RESULT THEREOF.
Claim 2
Dependent Claim
187 words
A PROCESS FOR THE PREPARATION OF 1,4-DIENES, COMPRISING CONTACTING AND REACTING AN ALPHA-MONOOLEFIN OF THE FORMULA R''''-CH=CH2, WHEREIN R'''' IS A RADICAL SELECTED FROM THE GROUP CONSISTING OF H AND C1-C4 ALKYL, AND A CONJUGATED DIENE WHICH IS CO-DIMERIZABLE THEREWITH TO FORM A PRODUCT FREE OF ALLYLIC HALIDE, SAID DIENE CONTAINING UP TO 16 CARBON ATOMS, IN CONTACT WITH A CATALYTIC AMOUNT OF A CARALYST MADE BY COMBINING (A) AT LEAST TWO MOLAR PROPORTIONS OF AT LEAST ONE ORGANO METALLIC COMPOUND OF THE FORMULA RMXN, WHEREIN R IS A RADICAL SELECTED FROM THE GROUP CONSISTING OF ALKYL, ARYL AND ARALKYL, M IS A METAL SELECTED FROM THE GROUP CONSISTING OF ALUMINUM, ZINC, CADMIUM, AND MAGNESIUM, N IS AN INTEGER REPRESENTING THE NUMBER OF X GROUPS REQUIRED FOR VALENCE SATISFACTION AND X IS INDEPENDENTLY SELECTED FROM THE GROUP CONSISTING OF ALKYL, ARYL, ARALKYL, CHLORINE, AND BROMINE, WITH (B) A MOLAR PROPORTION OF AT LEAST ONE NICKEL COMPUND CONTAINING AT LEAST ONE MONODENDATE PHOSPHOROUS III LIGAND, SAID NICKEL COMPOUND BEING SELECTED FROM THE GROUP CONSISTING OF NICKEL HALIDE, NITRATE, AND CARBONYL, AND OBTAINING A 1,4-DIENE AS A RESULT THEREOF.
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) | 1970-02-27 | 1970-08-29 | 1971-02-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-02-27 | 1974-08-29 | 1975-02-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-02-27 | 1978-08-29 | 1979-02-28 | $7700.00 | Window Closed / Lapsed |