US4348313A
Expired / Lapsed
US
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Concrete formulation comprising polymeric reaction product of sulfur/cyclopentadiene oligomer/dicyclopentadiene
Assignee: United States, AS REPRESENTED BY DEPARTMENT OF COMMERCE 14TH ST BET E STREET AND CONSTITUTION AVE NW WASHINGTON DC
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Filing: 1980-10-14
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Granted: 1982-09-07
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Expires: 2000-10-14
Abstract
Abstract A modified sulfur cement formulation, comprising the polymeric reaction product of sulfur with a cyclopentadiene oligomer-dicyclopentadiene containing modifier in which the cyclopentadiene oligomer content of said modifier is at least 37 wt. %.
Inventors
- 👤 William C. McBee
- 👤 Thomas A. Sullivan
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 11:31
CPC Classifications
C; C04; C04B; C04B28/00; C04B28/36; C08; C08G; C08G75/00; C08G75/14
Claims Analysis
Total Claims: 9
Claim 1
Independent Claim
74 words
A sulfur concrete formulation, comprising: an admixture of (a) at least one concrete aggregate, and (b) the polymeric reaction product of (1) sulfur with (2) a modifier, said modifier being a blend of a cyclopentadiene oligomer mixture and dicyclopentadiene, said oligomer mixture being free from dicyclopentadiene, wherein the cyclopentadiene oligomer mixture is at least 37 weight % of the blend, said polymeric reaction product having a softening point of no more than 116° F.
Claim 2
Dependent Claim
74 words
A sulfur concrete formulation, comprising: an admixture of (a) at least one concrete aggregate, and (b) the polymeric reaction product of (1) sulfur with (2) a modifier, said modifier being a blend of a cyclopentadiene oligomer mixture and dicyclopentadiene, said oligomer mixture being free from dicyclopentadiene, wherein the cyclopentadiene oligomer mixture is at least 37 weight % of the blend, said polymeric reaction product having a softening point of no more than 116° F.
Claim 3
Dependent Claim
23 words
The formulation of claim 1, wherein the content of said oligomer in said modifier ranges from 37 wt. % to 70 wt. %.
Claim 4
Dependent Claim
22 words
The formulation of claim 1, wherein from 1 to 45 wt. % modifier is combined with 99 to 55 wt. % sulfur.
Claim 5
Dependent Claim
26 words
The formulation of claim 1, wherein from 93 to 20 wt. % aggregate is combined with 7 to 80 wt. % of said modified sulfur cement.
Claim 6
Dependent Claim
22 words
The formulation of claim 1, wherein said aggregate is selected from the group consisting of particulate quartz, granite, limestone and volcanic material.
Claim 7
Dependent Claim
19 words
The formulation of claim 1, wherein said polymeric reaction product component of said concrete formulation solidifies below 115° C.
Claim 8
Dependent Claim
84 words
A sulfur concrete formulation, comprising an admixture of (a) at least one concrete aggregate, and (b) the polymeric reaction product of from (1) 70-97 weight percent sulfur with (2) from 3 to 30 weight percent of a modifier, said modifier being a blend of a cyclopentadiene oligomer and dicyclopentadiene, said oligomer mixture being free from dicyclopentadiene, wherein the cyclopentadiene oligomer mixture is at least 37 weight % of the blend, said polymeric reaction product having a softening point of no more than 110° F.
Claim 9
Dependent Claim
84 words
A sulfur concrete formulation, comprising an admixture of (a) at least one concrete aggregate, and (b) the polymeric reaction product of from (1) 70-97 weight percent sulfur with (2) from 3 to 30 weight percent of a modifier, said modifier being a blend of a cyclopentadiene oligomer and dicyclopentadiene, said oligomer mixture being free from dicyclopentadiene, wherein the cyclopentadiene oligomer mixture is at least 37 weight % of the blend, said polymeric reaction product having a softening point of no more than 110° F.
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) | 1985-09-06 | 1986-03-08 | 1986-09-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1989-09-06 | 1990-03-08 | 1990-09-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1993-09-06 | 1994-03-08 | 1994-09-07 | $7700.00 | Window Closed / Lapsed |