US3887506A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process of stabilizing soil and soil additive product
Assignee: Terra Perma Inc
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Filing: 1973-10-11
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Granted: 1975-06-03
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Expires: 1993-10-11
Abstract
Abstract A soil additive comprising a vinyl acetate homopolymer emulsion which includes vinyl acetate, hydroxyethyl cellulose, a nonatonic ethoxylated surfactant, potassium persulfate, sodium bicarbonate and water; a polyvinyl alcohol mixture which includes water, hydrogen peroxide, glycerin and polyvinyl alcohol; and a water repellent emulsion which comprises paraffin wax, an ethoxylated surfactant, diglycol stearate, candelilla wax, stearic acid, water, zirconium acetate, and ethylene urea resin. A process of injecting the additive into the soil is disclosed.
Inventors
- 👤 Robert L Hewitt
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 12:15
CPC Classifications
E; E01; E01C; E01C7/00; E01C7/36; C; C08; C08L; C08L31/00; C08L31/02; C08L31/04; C09; C09K; C09K17/00; C09K17/40; C08L2201/00; C08L2201/52; C08L29/00; C08L29/02; C08L29/04
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
82 words
AN ADDITIVE FOR STABILIZING IN SITU WATER PERMEABLE SOIL COMPRISING FROM 80 - 90% BY WEIGHT OF A COMPOSITION COMPRISING VINYL ACETATE HOMOPOLYMER, HYDROXETHYL CELLYLOSE, A NON-IONIC ETHOXLATED SURFACTANT, POTASSIUM PERSULFATE, SODIUM BICARBONATE AND WATER; FROM 5 - 10% BY WEIGHT OF A POLYVINYL ALCOHOL MIXTURE COMPRISING WATER, HYDROGEN PEROXIDE, GLYCERIN AND POLYVINYL ALCOHOL, AND FROM 5 - 10% BY WEIGHT OF A WATER REPELLANT EMULSION COMPRISING WAX, AN ETHOXYLATED SURFACTANT, DIGLYCOL STERATE, STERIC ACID, ZIRCONIUM ACERATE, ETHYLENE UREA RESIN AND WATER.
Claim 2
Dependent Claim
82 words
AN ADDITIVE FOR STABILIZING IN SITU WATER PERMEABLE SOIL COMPRISING FROM 80 - 90% BY WEIGHT OF A COMPOSITION COMPRISING VINYL ACETATE HOMOPOLYMER, HYDROXETHYL CELLYLOSE, A NON-IONIC ETHOXLATED SURFACTANT, POTASSIUM PERSULFATE, SODIUM BICARBONATE AND WATER; FROM 5 - 10% BY WEIGHT OF A POLYVINYL ALCOHOL MIXTURE COMPRISING WATER, HYDROGEN PEROXIDE, GLYCERIN AND POLYVINYL ALCOHOL, AND FROM 5 - 10% BY WEIGHT OF A WATER REPELLANT EMULSION COMPRISING WAX, AN ETHOXYLATED SURFACTANT, DIGLYCOL STERATE, STERIC ACID, ZIRCONIUM ACERATE, ETHYLENE UREA RESIN AND WATER.
References Cited (Backward Citations)
US2850468A
Cited
US2809945A
Cited
US3003979A
Cited
US3094500A
Cited
US3213051A
Cited
US3197429A
Cited
US3303147A
Cited
US3505264A
Cited
US3563851A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1978-06-02 | 1978-12-02 | 1979-06-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-06-02 | 1982-12-02 | 1983-06-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-06-02 | 1986-12-02 | 1987-06-03 | $7700.00 | Window Closed / Lapsed |