COPOLIMERI SOLUBILI IN ACQUA

New copolymers soluble in an aqueous medium, which are stable in a highly concentrated medium of Bronsted-Lowery acids. These copolymers are used as acid lubricants in the field of oil and natural gas boring. The copolymer according to the invention contains in its macromolecule, in statistical dist...

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Bibliographische Detailangaben
Hauptverfasser:	ULRICH RIEGEL, JEFFERY C. DAWSON, FRIEDRICH ENGELHARDT, SIGMAR VON HALASZ, ANTHONY R. REED, KLAUS KUHLEIN
Format:	Patent
Sprache:	ita
Schlagworte:	ADHESIVES CHEMISTRY COMPOSITIONS BASED THEREON DYES EARTH DRILLING EARTH DRILLING, e.g. DEEP DRILLING FIXED CONSTRUCTIONS MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVINGCARBON-TO-CARBON UNSATURATED BONDS 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 ORGANIC MACROMOLECULAR COMPOUNDS PAINTS POLISHES THEIR PREPARATION OR CHEMICAL WORKING-UP
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Beschreibung
Zusammenfassung:	New copolymers soluble in an aqueous medium, which are stable in a highly concentrated medium of Bronsted-Lowery acids. These copolymers are used as acid lubricants in the field of oil and natural gas boring. The copolymer according to the invention contains in its macromolecule, in statistical distribution, at least 5% by weight of units having each a formylamino group (according to A) and at least 10% by weight of units having each an aminocarbonyl group (according to B).