Patent US4290816A successfully refreshed from Google Patents.
US4290816A
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Sulfur compounds and method of making same
Assignee: Southwest Research Institute
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Filing: 1979-01-29
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Granted: 1981-09-22
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Expires: 1999-01-29
Abstract
Abstract Elemental sulfur is reacted in a certain manner with at least first and second hydrocarbons to form an asphalt-like material.
Inventors
- 👤 Allen C. Ludwig
- 👤 John M. Dale
- 👤 Henry F. Frazier
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 19:18
CPC Classifications
C; C04; C04B; C04B28/00; C04B28/36
Claims Analysis
Total Claims: 22
Claim 1
Independent Claim
219 words
A process for modifying elemental sulfur to produce a material having properties such that it can be used as a substitute for asphalt or portland cement comprising reacting elemental sulfur (1) with from 5 to 20 weight percent of the sulfur of a first hydrocarbon containing from 4 to 20 carbon atoms (a) which is a diolefin or triolefin with the unsaturated portion being reactable with elemental sulfur and (b) which by itself when reacted with elemental sulfur forms a gel and (2) with from 5 to 20 weight percent of the sulfur of a second hydrocarbon containing from 2 to 20 carbon atoms (a) which is a monolefin reactable with elemental sulfur and (b) which by itself when reacted with sulfur does not form a gel but forms a brittle product and (c) which when the first and second hydrocarbons are so reacted with sulfur prevents said gel from forming; (3) said reaction being initiated by heating the reactants to a temperature in the range of 120° to 200° C. and sufficiently high to cause an exothermic reaction between the reactants and (4) producing a product having a viscosity curve substantially that of asphalt, a penetration of from 5 to 100, a softening point of from 10° C. to 70° C. and a ductility of at least 100.
Claim 2
Dependent Claim
219 words
A process for modifying elemental sulfur to produce a material having properties such that it can be used as a substitute for asphalt or portland cement comprising reacting elemental sulfur (1) with from 5 to 20 weight percent of the sulfur of a first hydrocarbon containing from 4 to 20 carbon atoms (a) which is a diolefin or triolefin with the unsaturated portion being reactable with elemental sulfur and (b) which by itself when reacted with elemental sulfur forms a gel and (2) with from 5 to 20 weight percent of the sulfur of a second hydrocarbon containing from 2 to 20 carbon atoms (a) which is a monolefin reactable with elemental sulfur and (b) which by itself when reacted with sulfur does not form a gel but forms a brittle product and (c) which when the first and second hydrocarbons are so reacted with sulfur prevents said gel from forming; (3) said reaction being initiated by heating the reactants to a temperature in the range of 120° to 200° C. and sufficiently high to cause an exothermic reaction between the reactants and (4) producing a product having a viscosity curve substantially that of asphalt, a penetration of from 5 to 100, a softening point of from 10° C. to 70° C. and a ductility of at least 100.
Claim 3
Dependent Claim
24 words
The process of claim 1 wherein the first hydrocarbon is dicyclopentadiene in an amount of from 10 to 20 weight percent of the sulfur.
Claim 4
Dependent Claim
25 words
The process of claim 1 wherein from 5 to 15 weight percent of the sulfur of vinyl toluene is also reacted with the other reactants.
Claim 5
Dependent Claim
24 words
The process of claim 1 wherein from 5 to 15 weight percent of the sulfur of pinene is also reacted with the other reactants.
Claim 6
Dependent Claim
24 words
The process of claim 1 wherein coal tar is added in an amount of from 5 to 15 weight percent of the reacted product.
Claim 7
Dependent Claim
22 words
The process of claim 1 wherein a small but effective amount of an organic polysulfide is added to act as a catalyst.
Claim 8
Dependent Claim
126 words
A process for converting elemental sulfur into an asphalt or portland cement substitute comprising mixing elemental sulfur with (1) a first hydrocarbon selected from dicyclopentadiene, methyl cyclopentadiene, divinyl benzene, cyclooctadiene, cyclododecatriene, octadiene, and myrcene, and (2) a second hydrocarbon selected from styrene, vinyl toluene, pinene and octene; said first and second hydrocarbons each being present in an amount in the range of 5 to 20 weight percent of the sulfur; heating the resulting mixture to a temperature of at least 120° C. and high enough to initiate an exothermic reaction, and recovering a product having a viscosity curve substantially that of asphalt, a penetration of from 5 to 100, a softening point of from 10° C. to 70° C. and a ductility of at least 100.
Claim 9
Dependent Claim
126 words
A process for converting elemental sulfur into an asphalt or portland cement substitute comprising mixing elemental sulfur with (1) a first hydrocarbon selected from dicyclopentadiene, methyl cyclopentadiene, divinyl benzene, cyclooctadiene, cyclododecatriene, octadiene, and myrcene, and (2) a second hydrocarbon selected from styrene, vinyl toluene, pinene and octene; said first and second hydrocarbons each being present in an amount in the range of 5 to 20 weight percent of the sulfur; heating the resulting mixture to a temperature of at least 120° C. and high enough to initiate an exothermic reaction, and recovering a product having a viscosity curve substantially that of asphalt, a penetration of from 5 to 100, a softening point of from 10° C. to 70° C. and a ductility of at least 100.
Claim 10
Dependent Claim
28 words
The process of claim 7 wherein from 5 to 15 weight percent based on the sulfur of vinyl toluene is also mixed with the sulfur to react therewith.
Claim 11
Dependent Claim
27 words
The process of claim 7 wherein from 5 to 15 weight percent based on the sulfur of pinene is also mixed with the sulfur to react therewith.
Claim 12
Dependent Claim
24 words
The process of claim 7 wherein coal tar is added in an amount of from 5 to 15 weight percent of the reacted product.
Claim 13
Dependent Claim
22 words
The process of claim 7 wherein a small but effective amount of an organic polysulfide is added to act as a catalyst.
Claim 14
Dependent Claim
197 words
A composition having properties such that it can be used as a substitute for asphalt or portland cement comprising the reaction product of (1) elemental sulfur (2) from 5 to 20 weight percent of the sulfur of a first hydrocarbon having from 4 to 20 carbon atoms (a) which is a diolefin or a triolefin with the unsaturated portions being reactable with elemental sulfur and (b) which by itself when reacted with elemental sulfur forms a gel, and (3) from 5 to 20 weight percent of the sulfur to a second hydrocarbon containing from 2 to 20 carbon atoms (a) which is a monolefin reactable with elemental sulfur and (b) which by itself when reacted with sulfur does not form a gel but forms a brittle product and (c) which when the first and second organic compounds are so reacted with sulfur prevents said gel from forming; said reaction product being formed by causing the aforesaid reactants to undergo an exothermic reaction; said reaction product having a viscosity curve substantially that of asphalt, a penetration of from 5 to 15, a softening point of from 10° C. to 70° C. and a ductility of at least 100.
Claim 15
Dependent Claim
197 words
A composition having properties such that it can be used as a substitute for asphalt or portland cement comprising the reaction product of (1) elemental sulfur (2) from 5 to 20 weight percent of the sulfur of a first hydrocarbon having from 4 to 20 carbon atoms (a) which is a diolefin or a triolefin with the unsaturated portions being reactable with elemental sulfur and (b) which by itself when reacted with elemental sulfur forms a gel, and (3) from 5 to 20 weight percent of the sulfur to a second hydrocarbon containing from 2 to 20 carbon atoms (a) which is a monolefin reactable with elemental sulfur and (b) which by itself when reacted with sulfur does not form a gel but forms a brittle product and (c) which when the first and second organic compounds are so reacted with sulfur prevents said gel from forming; said reaction product being formed by causing the aforesaid reactants to undergo an exothermic reaction; said reaction product having a viscosity curve substantially that of asphalt, a penetration of from 5 to 15, a softening point of from 10° C. to 70° C. and a ductility of at least 100.
Claim 16
Dependent Claim
23 words
The composition of claim 10 wherein the first hydrocarbon is dicyclopentadiene in an amount of 10 to 20 weight percent of the sulfur.
Claim 17
Dependent Claim
25 words
The composition of claim 13 wherein from 5 to 15 weight percent of the sulfur of vinyl toluene is also reacted with the other reactants.
Claim 18
Dependent Claim
24 words
The composition of claim 13 wherein from 5 to 15 weight percent of the sulfur of pinene is also reacted with the other reactants.
Claim 19
Dependent Claim
23 words
The composition of claim 12 wherein coal tar is present in an amount from 5 to 15 weight percent of the reaction product.
Claim 20
Dependent Claim
22 words
The composition of claim 10 wherein a small but effective amount of an organic polysulfide is added to act as a catalyst.
Claim 21
Dependent Claim
210 words
A material for paving roads and the like comprising: an aggregate bound together by a material made by reacting elemental sulfur (1) with from 5 to 20 weight percent of the sulfur of a first hydrocarbon containing from 4 to 20 carbon atoms (a) which is a diolefin or triolefin with the unsaturated portion being reactable with elemental sulfur and (b) which by itself when reacted with elemental sulfur forms a gel and (2) with from 5 to 20 weight percent of the sulfur of a second hydrocarbon containing from 2 to 20 carbon atoms (a) which is a monolefin reactable with elemental sulfur and (b) which by itself when reacted with sulfur does not form a gel but forms a brittle product and (c) which when the first and second hydrocarbons are so reacted with sulfur prevents said gel from forming; (3) said reaction being initiated by heating the reactants to a temperature in the range of 120° to 200° C. and sufficiently high to cause an exothermic reaction between the reactants and (4) producing a product having a viscosity curve substantially that of asphalt, a penetration of from 5 to 100, a softening point of from 10° C. to 70° C. and a ductility of at least 100.
Claim 22
Dependent Claim
210 words
A material for paving roads and the like comprising: an aggregate bound together by a material made by reacting elemental sulfur (1) with from 5 to 20 weight percent of the sulfur of a first hydrocarbon containing from 4 to 20 carbon atoms (a) which is a diolefin or triolefin with the unsaturated portion being reactable with elemental sulfur and (b) which by itself when reacted with elemental sulfur forms a gel and (2) with from 5 to 20 weight percent of the sulfur of a second hydrocarbon containing from 2 to 20 carbon atoms (a) which is a monolefin reactable with elemental sulfur and (b) which by itself when reacted with sulfur does not form a gel but forms a brittle product and (c) which when the first and second hydrocarbons are so reacted with sulfur prevents said gel from forming; (3) said reaction being initiated by heating the reactants to a temperature in the range of 120° to 200° C. and sufficiently high to cause an exothermic reaction between the reactants and (4) producing a product having a viscosity curve substantially that of asphalt, a penetration of from 5 to 100, a softening point of from 10° C. to 70° C. and a ductility of at least 100.
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) | 1984-09-21 | 1985-03-23 | 1985-09-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1988-09-21 | 1989-03-23 | 1989-09-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1992-09-21 | 1993-03-23 | 1993-09-22 | $7700.00 | Window Closed / Lapsed |