US4168593A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method for stabilizing soil
Assignee: Dow Chemical Co
•
Filing: 1977-01-21
•
Granted: 1979-09-25
•
Expires: 1997-01-21
Abstract
Abstract Soil is stabilized to resist erosion due to weather exposure by depositing a latex coagulating amount of an aqueous solution of a polyvalent metal salt on the soil surface followed thereafter by depositing on that so treated surface a soil stabilizing amount of an aqueous polymer latex coagulable by said salt.
Inventors
- 👤 Erwin M. Jankowiak
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 13:14
CPC Classifications
C; C09; C09K; C09K17/00; C09K17/40; C09K17/48; E; E02; E02D; E02D3/00; Y; Y10; Y10S; Y10S106/00; Y10S106/90; Y10S47/00; Y10S47/10
Claims Analysis
Total Claims: 11
Claim 1
Independent Claim
56 words
A method for stabilizing soil to erosion due to weather exposure comprising the deposition on the soil surface of an aqueous solution of a latex coagulating amount of a polyvalent metal salt followed thereafter by the deposition on the so treated surface of a soil stabilizing amount of an aqueous polymer latex coagulable by said salt.
Claim 2
Independent Claim
56 words
A method for stabilizing soil to erosion due to weather exposure comprising the deposition on the soil surface of an aqueous solution of a latex coagulating amount of a polyvalent metal salt followed thereafter by the deposition on the so treated surface of a soil stabilizing amount of an aqueous polymer latex coagulable by said salt.
Claim 3
Dependent Claim
22 words
The method claimed in claim 1 wherein said aqueous solution has a concentration of from about 3 to about 15 weight percent.
Claim 4
Dependent Claim
22 words
The method of claim 1 wherein said salt is applied to said soil at a minimum amount of 200 pounds per acre.
Claim 5
Dependent Claim
11 words
The method of claim 1 wherein said salt is aluminum sulfate.
Claim 6
Dependent Claim
19 words
The method of claim 1 wherein said latex contains from about 2 to about 10 weight percent polymer solids.
Claim 7
Dependent Claim
26 words
The method of claim 1 wherein said latex is applied to said soil in an amount of at least 200 pounds of polymer solids per acre.
Claim 8
Dependent Claim
20 words
The method of claim 1 wherein said latex is of an interpolymer of styrene, butadiene and an unsaturated monocarboxylic acid.
Claim 9
Dependent Claim
11 words
The method of claim 7 wherein said acid is itaconic acid.
Claim 10
Dependent Claim
11 words
The method of claim 7 wherein said acid is acrylic acid.
Claim 11
Dependent Claim
19 words
The method of claim 1 wherein grass seed is deposited on the soil prior to deposition of said salt.
References Cited (Backward Citations)
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US3286475A
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US3875697A
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US3732698A
Cited
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1982-09-24 | 1983-03-26 | 1983-09-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1986-09-24 | 1987-03-26 | 1987-09-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1990-09-24 | 1991-03-26 | 1991-09-25 | $7700.00 | Window Closed / Lapsed |