US3663286A
Expired / Lapsed
US
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Adjuvant composition for concretes and mortars
Assignee: GERARD HENRI JULES LERUSTE
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Filing: 1970-02-26
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Granted: 1972-05-16
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Expires: 1990-02-26
Abstract
Abstract Adjuvant composition for concretes and mortars adapted to be dissolved in the mixing water. This composition consists basically of an aqueous mixture of at least four inorganic salts, viz, a borate, a sulfite, a nitrate, and a hyposulfite. Particularly, it comprises sodium borate, sodium sulfite, potassium nitrate and sodium hyposulfite. A particular formulation is as follows: WATER500 M/SODIUM BORATE5 G SODIUM SULFITE20 G POTASSIUM NITRATE160 G SODIUM HYPOSULFITE 800 G Applications to the production of mortars, concretes, aggregate, and any constructional material.
Inventors
- 👤 Andre De Barrau
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 14:10
CPC Classifications
C; C04; C04B; C04B28/00; C04B28/02
Claims Analysis
Total Claims: 7
Claim 1
Independent Claim
23 words
The composition of claim 1, wherein the borate cation and sulfite cation are identical while the nitrate cation and hyposulfite cation are different.
Claim 2
Dependent Claim
16 words
The composition of claim 2, which contains sodium borate, sodium sulfite, potassium nitrate and sodium hyposulfite.
Claim 3
Dependent Claim
29 words
The composition of claim 1, having approximately the following formulation: water 500 ml. sodium borate 5 g. sodium sulfite 20 g. potassium nitrate 160 g. sodium hyposulfite 800 g.
Claim 4
Dependent Claim
39 words
The composition of claim 1, as diluted with the mixing water used for the production of concretes and mortars, the proportion of said composition as related to the mixing water ranging approximately from 5 to 15 percent by volume.
Claim 5
Dependent Claim
22 words
The composition of claim 5, as diluted in the mixing water in an amount of about 5 to 10 percent by volume.
Claim 6
Independent Claim
104 words
The method of obtaining an adjuvant composition for concretes and mortars consisting in successively dissolving in 500 parts by weight water, from 3 to 10 parts by weight of an alkali or alkaline earth borate, from 15 to 30 parts by weight of an alkali or alkaline earth sulfite, from 130 to 200 parts by weight of an alkali or alkaline earth nitrate, and from 700 to 850 parts by weight of an alkali or alkaline earth hyposulfite in water at an initial temperature of about 80* to 100* C. and in then maintaining the temperature at about 40* to 60* C. during dissolution.
Claim 7
Dependent Claim
56 words
The method of claim 7, consisting in dissolving in water the four following salts, in the mentioned order and by fractions as defined: water 500ml. sodium borate 5 g. sodium sulfite (4 fractions of 5 g.) 20 g. potassium nitrate (8 fractions of 20 g.) 160 g. sodium hyposulfite (5 fractions of 160 g.) 800 g.
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) | 1975-05-16 | 1975-11-15 | 1976-05-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-05-16 | 1979-11-15 | 1980-05-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-05-16 | 1983-11-15 | 1984-05-16 | $7700.00 | Window Closed / Lapsed |