Patent US4387167A successfully refreshed from Google Patents.
US4387167A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Sulfur-based adducts and compositions
Assignee: Pennzoil Quaker State Co
•
Filing: 1981-08-25
•
Granted: 1983-06-07
•
Expires: 2001-08-25
Abstract
Abstract A novel sulfur-based adduct formed by reacting sulfur with a diene-containing by-product hydrocarbon mixture available from petrochemical operations and/or from coal processing. The adduct is a reaction product of sulfur and each of the dienes contained in the by-product mixture. Also disclosed is a road surface composition containing this adduct as an asphalt extender or as a replacement for asphalt, and there are also disclosed other compositions containing this adduct such as sulfur cements, sulfur concretes, coatings, foams, structural materials and insulators.
Inventors
- 👤 Louis E. Kidwell, Jr.
- 👤 Dysart E. Holcomb
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 22:57
CPC Classifications
C; C04; C04B; C04B28/00; C04B28/36; C08; C08L; C08L95/00
Claims Analysis
Total Claims: 31
Claim 1
Independent Claim
95 words
A sulfur-based adduct produced by (a) reacting at a temperature of about 100°-150° C., a composition comprising (1) about 5-95 wt.% of sulfur and (2) about 95-5 wt.% of a by-product hydrocarbon mixture comprising about 45-98 wt.% of aromatic, non-pseudodiene compounds, about 1-40 wt.% of diene and pseudodiene compounds, about 0-15 wt.% of other organic compounds that are substantially unreacted with sulfur and up to about 54 wt.% of unidentified compounds; whereby the sulfur reacts with each of the diene and pseudodiene compounds in said mixture; and (b) removing unreacted material from the reaction product.
Claim 2
Dependent Claim
95 words
A sulfur-based adduct produced by (a) reacting at a temperature of about 100°-150° C., a composition comprising (1) about 5-95 wt.% of sulfur and (2) about 95-5 wt.% of a by-product hydrocarbon mixture comprising about 45-98 wt.% of aromatic, non-pseudodiene compounds, about 1-40 wt.% of diene and pseudodiene compounds, about 0-15 wt.% of other organic compounds that are substantially unreacted with sulfur and up to about 54 wt.% of unidentified compounds; whereby the sulfur reacts with each of the diene and pseudodiene compounds in said mixture; and (b) removing unreacted material from the reaction product.
Claim 3
Dependent Claim
29 words
The adduct of claim 1 wherein the by-product mixture is selected from the group consisting of depentanized aromatic concentrate, heavy aromatic concentrate, dripolene and light oil from coal processing.
Claim 4
Dependent Claim
13 words
The adduct of claim 2 wherein the hydrocarbon mixture is depentanized aromatic concentrate.
Claim 5
Dependent Claim
45 words
The adduct of claim 3 wherein the depentanized aromatic concentrate comprises about 50-70 wt.% of the aromatic, non-pseudodiene compounds, about 15-40 wt.% of the diene and pseudodiene compounds, and about 0.5-2.0 wt.% of paraffins, with the remaining up to about 35 wt.% being unidentified compounds.
Claim 6
Dependent Claim
22 words
The adduct of claim 1 wherein the composition comprises about 40-80 wt.% of sulfur and about 20-60 wt.% of the hydrocarbon mixture.
Claim 7
Dependent Claim
13 words
The adduct of claim 1 wherein the reaction temperature is about 115°-135° C.
Claim 8
Dependent Claim
20 words
The adduct of claim 1 wherein the reaction is carried out at superatmospheric pressure ranging up to about 1000 p.s.i.g.
Claim 9
Dependent Claim
13 words
The adduct of claim 7 wherein the pressure ranges from about 15-100 p.s.i.g.
Claim 10
Dependent Claim
12 words
The adduct of claim 8 wherein the pressure is about 35-80 p.s.i.g.
Claim 11
Dependent Claim
13 words
The adduct of claim 1 wherein the reaction time is about six hours.
Claim 12
Dependent Claim
25 words
A road surface composition comprising an aggregate suitable for use in highway construction and the adduct of claim 1 as a binder for the aggregate.
Claim 13
Dependent Claim
13 words
The road surface composition of claim 11 wherein the binder further comprises asphalt.
Claim 14
Dependent Claim
9 words
A sulfur cement comprising the adduct of claim 1.
Claim 15
Dependent Claim
9 words
A sulfur concrete comprising the adduct of claim 1.
Claim 16
Dependent Claim
10 words
A sulfur-based coating composition comprising the adduct of claim 1.
Claim 17
Dependent Claim
24 words
The coating composition of claim 15 further comprising a filler selected from the group consisting of mica, muscovite, glass fibers, talc and mixtures thereof.
Claim 18
Dependent Claim
9 words
A sulfur-based foam comprising the adduct of claim 1.
Claim 19
Dependent Claim
10 words
A sulfur-based structural material comprising the adduct of claim 1.
Claim 20
Dependent Claim
24 words
The structural material of claim 18 further comprising a filler selected from the group consisting of mica, muscovite, glass fibers, talc and mixtures thereof.
Claim 21
Dependent Claim
9 words
A sulfur-based insulator comprising the adduct of claim 1.
Claim 22
Dependent Claim
103 words
A process for producing a sulfur-based adduct, said process comprising the steps of (a) reacting at a temperature of about 100°-150° C., a composition comprising (1) about 5-95 wt.% of sulfur and (2) about 95-5 wt.% of a by-product hydrocarbon mixture comprising about 45-98 wt.% of aromatic, non-pseudodiene compounds, about 40 wt.% of diene and pseudodiene compounds, about 0-15 wt.% of other organic compounds that are substantially unreactive with sulfur and up to about 54 wt.% of unidentified compounds; whereby the sulfur reacts with each of the diene and pseudodiene compounds in said mixture; and (b) removing unreacted material from the reaction product.
Claim 23
Dependent Claim
103 words
A process for producing a sulfur-based adduct, said process comprising the steps of (a) reacting at a temperature of about 100°-150° C., a composition comprising (1) about 5-95 wt.% of sulfur and (2) about 95-5 wt.% of a by-product hydrocarbon mixture comprising about 45-98 wt.% of aromatic, non-pseudodiene compounds, about 40 wt.% of diene and pseudodiene compounds, about 0-15 wt.% of other organic compounds that are substantially unreactive with sulfur and up to about 54 wt.% of unidentified compounds; whereby the sulfur reacts with each of the diene and pseudodiene compounds in said mixture; and (b) removing unreacted material from the reaction product.
Claim 24
Dependent Claim
13 words
The process of claim 21 wherein the hydrocarbon mixture is depentanized aromatic concentrate.
Claim 25
Dependent Claim
22 words
The process of claim 21 wherein said composition comprises about 40-95 wt.% of sulfur and about 5-60 wt.% of the hydrocarbon mixture.
Claim 26
Dependent Claim
30 words
The process of claim 23 wherein the by-product hydrocarbon mixture is selected from the group consisting of depentanized aromatic concentrate, heavy aromatic concentrate, dripolene and light oil from coal processing.
Claim 27
Dependent Claim
46 words
The process of claim 22 wherein the depentanized aromatic concentrate comprises about 50-80 wt.% of the aromatic, non-pseudodiene compounds, about 15-40 wt.% of the diene, pseudodiene and monoolefin compounds, and about 0.5-2.0 wt.% of paraffins, with the remaining up to about 35 wt.% being unidentified compounds.
Claim 28
Dependent Claim
13 words
The process of claim 21 wherein the reaction temperature is about 115°-135° C.
Claim 29
Dependent Claim
19 words
The process of claim 21 wherein the reaction is carried out superatmospheric pressure ranging up to about 1,000 p.s.i.g.
Claim 30
Dependent Claim
13 words
The process of claim 27 wherein the pressure ranges from about 15-100 p.s.i.g.
Claim 31
Dependent Claim
13 words
The process of claim 22 wherein the reaction time is about six hours.
References Cited (Backward Citations)
US2039070A
Cited
US2135747A
Cited
US2806843A
Cited
US3231546A
Cited
US3264239A
Cited
US3459717A
Cited
US4011179A
Cited
US3823019A
Cited
US3887504A
Cited
US3997355A
Cited
US4058500A
Cited
US4022626A
Cited
US4177097A
Cited
US4164428A
Cited
US4155771A
Cited
US4190460A
Cited
US4311826A
Cited
US4302255A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1986-06-06 | 1986-12-06 | 1987-06-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1990-06-06 | 1990-12-06 | 1991-06-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1994-06-06 | 1994-12-06 | 1995-06-07 | $7700.00 | Window Closed / Lapsed |