US3936310A
Expired / Lapsed
US
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Hydraulic composition
Assignee: Zeon Corp
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Filing: 1974-04-01
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Granted: 1976-02-03
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Expires: 1994-04-01
Abstract
Abstract A hydraulic composition comprising 100 parts by weight of a hydraulic substance and 0.01 - 5 parts by weight of a sulfosuccinic acid derivative, which latter compound is obtained by the addition reaction of a compound selected from the group consisting of maleic acid, fumaric acid citraconic acid, mesaconic acid and the monoalkali metal salts, dialkali metal salts, alkaline earth metal salts, monoammonium salts and diammonium salts of these acids, with a compound selected from the group consisting of sulfurous acid, alkali metal sulphites, alkaline earth metal sulphites, ammonium sulphite, alkali metal hydrogen sulphites, alkaline earth metal hydrogen sulphites and ammonium hydrogen sulphite.
Inventors
- 👤 Tadao Natsuume
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 10:58
CPC Classifications
C; C04; C04B; C04B24/00; C04B24/16
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
103 words
A hydraulic composition comprising 100 parts by weight of a hydraulic substance and 0.01 - 5 parts by weight of a sulfosuccinic acid derivative, which latter compound is obtained by the addition reaction of a compound selected from the group consisting of maleic acid, fumaric acid, citraconic acid, mesaconic acid and the monoalkali metal salts, dialkali metal salts, alkaline earth metal salts, monoammonium salts and diammonium salts of these acids, with the compound selected from the group consisting of sulfurous acid, alkali metal sulphites, alkaline earth metal sulphites, ammonium sulphite, alkali metal hydrogen sulphites, alkaline earth metal hydrogen sulphites and ammonium hydrogen sulphite.
Claim 2
Dependent Claim
103 words
A hydraulic composition comprising 100 parts by weight of a hydraulic substance and 0.01 - 5 parts by weight of a sulfosuccinic acid derivative, which latter compound is obtained by the addition reaction of a compound selected from the group consisting of maleic acid, fumaric acid, citraconic acid, mesaconic acid and the monoalkali metal salts, dialkali metal salts, alkaline earth metal salts, monoammonium salts and diammonium salts of these acids, with the compound selected from the group consisting of sulfurous acid, alkali metal sulphites, alkaline earth metal sulphites, ammonium sulphite, alkali metal hydrogen sulphites, alkaline earth metal hydrogen sulphites and ammonium hydrogen sulphite.
Claim 3
Dependent Claim
12 words
The composition of claim 1 wherein said hydraulic substance is portland cement.
Claim 4
Dependent Claim
16 words
The composition of claim 1 wherein said sulfosuccinic acid derivative is trisodium sulfosuccinate or trisodium sulfomethylsuccinate.
Claim 5
Dependent Claim
13 words
The composition of claim 1 wherein said sulfosuccinic acid derivative is trisodium sulfosuccinate.
Claim 6
Dependent Claim
13 words
The composition of claim 1 wherein said sulfosuccinic acid derivative is trisodium sulfomethylsuccinate.
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) | 1979-02-02 | 1979-08-04 | 1980-02-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1983-02-02 | 1983-08-04 | 1984-02-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1987-02-02 | 1987-08-04 | 1988-02-03 | $7700.00 | Window Closed / Lapsed |