US3671604A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Catalytic copolymerization of acetylene and monoolefins
Assignee: Zeneca Inc
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Filing: 1970-10-21
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Granted: 1972-06-20
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Expires: 1990-10-21
Abstract
Abstract Disclosed is a process for the catalytic copolymerization of acetylene and olefins which comprises heating a mixture of acetylene and olefin in the presence of a catalyst comprising an acidic catalyst carrier having deposited thereon a compound selected from the group consisting of zinc acetate, zinc oxide, cadmium oxide, cadmium acetate, nickel oxide, nickel acetate, cobalt oxide, and cobalt acetate. The novel products produced by the process of this invention are useful for the preparation of motor fuels and polymeric coating compositions.
Inventors
- 👤 Thomas F Rutledge
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 23:34
CPC Classifications
C; C07; C07C; C07C2/00; C07C2/02; C07C2/04; C08; C08F; C08F10/00; C07C2523/00; C07C2523/06; C07C2523/70; C07C2523/74; C07C2523/75; C07C2523/755; C07C2531/00; C07C2531/02; C07C2531/04
Claims Analysis
Total Claims: 8
Claim 1
Independent Claim
11 words
A process of claim 1 wherein the olefin is a monoolefin.
Claim 2
Dependent Claim
11 words
A process of claim 1 wherein the olefin is a diolefin.
Claim 3
Dependent Claim
13 words
A process of claim 2 wherein the monoolefin is ethylene, propylene, or isobutylene.
Claim 4
Dependent Claim
14 words
A process of claim 1 wherein the compound is zinc oxide or zinc acetate.
Claim 5
Dependent Claim
14 words
A process of claim 1 wherein the compound is cadmium oxide or cadmium acetate.
Claim 6
Dependent Claim
14 words
A process of claim 1 wherein the compound is nickel oxide or nickel acetate.
Claim 7
Dependent Claim
14 words
A process of claim 1 wherein the compound is cobalt oxide or cobalt acetate.
Claim 8
Dependent Claim
25 words
A process of claim 1 wherein the gaseous mixture of acetylene and olefin is heated in the presence of a fluidized bed of the catalyst.
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) | 1975-06-20 | 1975-12-20 | 1976-06-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-06-20 | 1979-12-20 | 1980-06-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-06-20 | 1983-12-20 | 1984-06-20 | $7700.00 | Window Closed / Lapsed |