CEMENT SLURRY FOR BORING DEEP WELL CONTAINING COPOLYMER FOR REDUCING WATER LOSS
Cement slurries for deep holes, with a content of copolymers which are composed of 5-95% by weight of groups of the formula in which R1 is hydrogen or methyl, R2 is C2-C10-alkylene and Me is ammonium, lithium, sodium or potassium, of 5-60% by weight of groups of the formula (III) in which R3 is hydr...
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| creator | HAINTSU UITSUTOKUSU MARUTEIN HIRE URURITSUHI RIIGERU UORUFUGANGU FURIIDE FURIIDORITSUHI ENGERUHARUTO |
| description | Cement slurries for deep holes, with a content of copolymers which are composed of 5-95% by weight of groups of the formula in which R1 is hydrogen or methyl, R2 is C2-C10-alkylene and Me is ammonium, lithium, sodium or potassium, of 5-60% by weight of groups of the formula (III) in which R3 is hydrogen, -CH3 or C2H5 and R4 is -CH3 or C2H5, or R3 and R4 together are a propylene group which, with incorporation of the radical forms a pyrrolidone radical, and of 0-90% by weight of groups of the formula (IV) in which R6 is hydrogen or methyl and R7 is carboxamido, carboxyl, cyano or carbomethoxy. These copolymers reduce the water loss of cement slurries which are required for deep holes. |
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These copolymers reduce the water loss of cement slurries which are required for deep holes.</abstract><oa>free_for_read</oa></addata></record> |
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| subjects | ADHESIVES ARTIFICIAL STONE CEMENTS CERAMICS CHEMISTRY COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDINGMATERIALS CONCRETE DYES EARTH DRILLING EARTH DRILLING, e.g. DEEP DRILLING FIXED CONSTRUCTIONS LIME, MAGNESIA MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FORELSEWHERE METALLURGY MINING MISCELLANEOUS APPLICATIONS OF MATERIALS MISCELLANEOUS COMPOSITIONS NATURAL RESINS OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR ASLURRY OF MINERALS FROM WELLS PAINTS POLISHES REFRACTORIES SLAG TREATMENT OF NATURAL STONE |
| title | CEMENT SLURRY FOR BORING DEEP WELL CONTAINING COPOLYMER FOR REDUCING WATER LOSS |
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