US4045236A
Expired / Lapsed
US
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Cellular cement composition
Assignee: I Ge Co ZRL
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Filing: 1975-04-08
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Granted: 1977-08-30
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Expires: 1995-04-08
Abstract
Abstract A cellular cement composition having a low specific gravity and a high tensile strength is described in which an alkali metal alkylbenzenesulfonate and a metal chloride are added to cement, inert fillers and water. Additional components which accelerate setting and hardening speeds as well as modify the viscosity of the composition prior to setting can also be present.
Inventors
- 👤 Giuseppe Bianchi
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 05:33
CPC Classifications
C; C04; C04B; C04B28/00; C04B28/02
Claims Analysis
Total Claims: 8
Claim 1
Independent Claim
113 words
A light, high tensile strength cellular cement composition having a homogeneous distribution of microporosities of diameters of from 0.1 to 4 mm sufficient to produce a specific gravity of from about 800 k/m 3 to about 1600 k/m 3 , said composition containing from about 300 to 800 k of cement per m 3 of composition, up to 1000 k of inert fillers per m 3 of composition and from 36 to 68% water by weight of composition, and further containing an alkali metal alkylbenzenesulfonate in an amount of from 1 to 45% by weight of water and a metal chloride in an amount of from 2 to 35% by weight of water.
Claim 2
Dependent Claim
113 words
A light, high tensile strength cellular cement composition having a homogeneous distribution of microporosities of diameters of from 0.1 to 4 mm sufficient to produce a specific gravity of from about 800 k/m 3 to about 1600 k/m 3 , said composition containing from about 300 to 800 k of cement per m 3 of composition, up to 1000 k of inert fillers per m 3 of composition and from 36 to 68% water by weight of composition, and further containing an alkali metal alkylbenzenesulfonate in an amount of from 1 to 45% by weight of water and a metal chloride in an amount of from 2 to 35% by weight of water.
Claim 3
Dependent Claim
63 words
A cement composition according to claim 1 further containing an alkali metal or alkaline earth metal nitrate in an amount of up to 70%, triethanolamine in an amount of up to 90%, a metal sulfate in an amount of up to 10% and a hydrated sodium silicate in an amount of up to 60%, all percentages being by weight based on water present.
Claim 4
Dependent Claim
16 words
A cement composition according to claim 2 wherein the alkali metal alkylbenzenesulfonate is a sodium alkylbenzenesulfonate.
Claim 5
Dependent Claim
19 words
A cement composition according to claim 2 wherein the alkali metal or alkaline earth metal nitrate is calcium nitrate.
Claim 6
Dependent Claim
14 words
A cement composition according to claim 2 wherein the metal sulfate is sodium sulfate.
Claim 7
Dependent Claim
15 words
A cement composition according to claim 2 wherein the hydrated sodium silicate is the pentahydrate.
Claim 8
Dependent Claim
40 words
A cement composition according to claim 2 wherein the alkali metal alkylbenzenesulfonate is sodium alkylbenzenesulfonate, the alkali metal or alkaline earth metal nitrate is calcium nitrate, the metal sulfate is sodium sulfate and the hydrated sodium silicate is the pentahydrate.
References Cited (Backward Citations)
US3307588A
Cited
US3795721A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1980-08-29 | 1981-02-28 | 1981-08-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1984-08-29 | 1985-02-28 | 1985-08-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1988-08-29 | 1989-02-28 | 1989-08-30 | $7700.00 | Window Closed / Lapsed |