Patent US3660059A successfully refreshed from Google Patents.
US3660059A
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Fuel gas composition
Assignee: Dow Chemical Co
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Filing: 1970-04-13
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Granted: 1972-05-02
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Expires: 1990-04-13
Abstract
Abstract Disclosed is a composition of matter useful as a fuel gas. The composition comprises a first component selected from methylacetylene, propadiene and mixtures thereof in admixture with dimethyl ether as a second component. The dimethyl ether preferably comprises at least about 25 mole percent of the composition. The composition is safely storable under pressure due to the stability against spontaneous decomposition of the unsaturated hydrocarbons afforded by the dimethyl ether. Additionally, the composition maintains an essentially constant composition upon withdrawal from storage.
Inventors
- 👤 Robert A Hollemann
- 👤 Robert F Huston
- 👤 Cyril A Barrios
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 13:53
CPC Classifications
C; C10; C10L; C10L3/00; C10L3/003
Claims Analysis
Total Claims: 9
Claim 1
Independent Claim
20 words
The fuel gas of claim 1 wherein the dimethyl ether comprises at least about 25 mole percent of the composition.
Claim 2
Dependent Claim
27 words
The fuel gas of claim 1 containing 39 tO 63 mole percent methylacetylene, 9 to 28 mole percent propadiene and 25 to 50 mole percent dimethyl ether.
Claim 3
Independent Claim
45 words
A method for producing heat and light which comprises burning as a fuel gas a composition comprising methylacetylene, propadiene or mixtures thereof as a first component together with a stabilizing amount of dimethyl ether as a second component to stabilize the composition against spontaneous decomposition.
Claim 4
Dependent Claim
26 words
The method of claim 4 wherein the dimethyl ether is employed in an amount sufficient to provide at least about 25 mole percent of the mixture.
Claim 5
Dependent Claim
25 words
The method of claim 4 wherein the dimethyl ether is employed in an amount sufficient to provide from 25 to 50 mole percent of mixture.
Claim 6
Dependent Claim
44 words
The method of claim 4 wherein the fuel gas contains from 39 to 63 mole percent methylacetylene, 9 to 28 mole percent propadiene and the dimethyl ether is employed in an amount sufficient to provide from 25 to 50 mole percent of the composition.
Claim 7
Dependent Claim
68 words
The method of claim 4 wherein dimethyl ether in admixture with one or more of the group of propane, propylene, isobutane or n-butane is admixed with the methylacetylene propadiene or mixtures thereof in an amount sufficient to provide at least about 25 mole percent of the composition and wherein dimethyl ether is employed in an amount sufficient to provide at least about 13 mole percent of the composition.
Claim 8
Dependent Claim
38 words
A fuel gas composition which comprises methylacetylene, propadiene or mixtures thereof as a first component together with dimethyl ether as a second component wherein the dimethyl ether makes up from 25 to 50 mole percent of the composition.
Claim 9
Dependent Claim
88 words
A fuel gas composition which comprises methylacetylene, propadiene or mixtures thereof as a first component together with dimethyl ether is admixture with one or more of the group of propane, propylene, isobutane or n-butane as a second component said fuel gas being further identified in that the first component makes up at least about 75 mole percent of the composition and the second component makes up at least about 25 mole percent of the composition and is made up of at least about 13 mole percent dimethyl ether.
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) | 1975-05-02 | 1975-11-01 | 1976-05-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-05-02 | 1979-11-01 | 1980-05-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-05-02 | 1983-11-01 | 1984-05-02 | $7700.00 | Window Closed / Lapsed |