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5990196 |
The present invention provides a ground surface structure for prevention of weed growing. The structure includes a germination-preventing sheet (2) resistant to penetration of buds of a plant and laid over the surface of a selected groun...
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4981650 |
Methods for treating toxic chlorinated dibenzo-p-dioxin-contaminated media by photolytic degradation are disclosed. Soil contaminated wiht such toxins are contacted with a photolysis-activating agent such as 1-hexadecylpyridinium chlorid...
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4328206 |
Described are the compounds, alkyl and alkenyl phenethylether derivatives, defined according to the structure: ##STR1## wherein R represents C 3 or C 6 secondary alkyl (2 o -alkyl) or C 4 alkenyl which have, individually or in combin...
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4134862 |
Wet soil containing up to about 40% by wet weight of water is stabilized into a relatively dry, compactable soil mass for use as backfill in excavations by admixing lime and an alkali metal salt of a starch-polyacrylonitrile or starch-po...
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4070865 |
An improved method and composition for consolidating a porous and permeable subterranean particulated formation into a high strength water resistant mass is provided by a particular combination of vinyl monomers, catalyst system and opti...
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4040484 |
A composition of matter comprising water, a polymer capable of being crosslinked by polyvalent metal cations, a reducible species containing said polyvalent metal in a higher oxidation state, and a reducing agent selected from among KI, ...
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4028897 |
The invention relates to a soil stabilization composition comprising a rubber latex of solids content at least 40% by weight and a compatible oil which is prepared by admixing the oil and the latex in the presence of additional emulsifie...
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3970718 |
In a method for producing a polymer composition by contacting A. a polymer component selected from the group consisting of chlorinated polyethylene and a mixture consisting of a major amount of chlorinated polyethylene and a minor amo...
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3956900 |
The specification describes a method for the consolidation of coal and/or rock in mines by injection of a liquid which subsequently hardens made up of magnesium chloride solution, having a specific gravity above 1.22, magnesium oxide and...
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3943078 |
A soil treating composition for mixing with water to form an aqueous solution for treating soil is characterized by including a synthetic latex material in a mixture including hydroxy ethyl cellulose, metal salts and powdered citric acid...
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3882069 |
Aqueous dispersions of chloro-2-butadiene-1,3 having improved stability against premature coagulation during compounding of the latex dispersions are obtained by incorporating sodium or ammonium salts of sulfated nonyl phenoxy poly (ethy...
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3805447 |
A soil binding composition having increased shear stability and good soil binding strength is provided comprising an emulsion containing a thermoplastic elastomer of the styrene-butadiene block copolymer type which is soluble in trichlor...
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3686872 |
In a process for stabilizing soil by impregnation with an alkaline aqueous gel-forming composition containing (a) a polyphenolic material such as a vegetable tannin extract and (b) a formaldehyde compound such as paraformaldehyde, a surp...
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3178370 |
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3121973 |
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3099896 |
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3077054 |
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3070583 |
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2981162 |
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2979863 |
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2961799 |
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2934511 |
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2915753 |
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2898706 |
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2848840 |
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2847392 |
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2837500 |
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2816083 |
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2801985 |
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2774659 |
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2771459 |
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2765291 |
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2765290 |
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2757161 |
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2751368 |
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2751367 |
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2745815 |
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2716094 |
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2687358 |
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2652381 |
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2652380 |
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2652379 |
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2652323 |
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2652322 |
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2651886 |
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2651883 |
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2651619 |
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