GRAFT COPOLYMERS, METHOD FOR THE PRODUCTION THEREOF, AND USE THEREOF

A graft copolymer based on a component a) consisting of silica which has been reacted with an unsaturated silane, and a polymer component b) containing sulphonic acid is proposed. The silica used is preferably a nanosilica and the unsaturated silane is an ethylenically unsaturated alkoxysilane. The...

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Bibliographische Detailangaben
Hauptverfasser:	REICHENBACH-KLINKE ROLAND, KEILHOFER GREGOR, PLANK JOHANN, LANGE PETER
Format:	Patent
Sprache:	eng
Schlagworte:	ADHESIVES CHEMISTRY COMPOSITIONS BASED THEREON COMPOSITIONS OF MACROMOLECULAR COMPOUNDS DYES MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONSONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS MANUFACTURE OR TREATMENT OF NANOSTRUCTURES MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FORELSEWHERE MEASUREMENT OR ANALYSIS OF NANOSTRUCTURES METALLURGY MISCELLANEOUS APPLICATIONS OF MATERIALS MISCELLANEOUS COMPOSITIONS NANOTECHNOLOGY NATURAL RESINS ORGANIC MACROMOLECULAR COMPOUNDS PAINTS PERFORMING OPERATIONS POLISHES SPECIFIC USES OR APPLICATIONS OF NANOSTRUCTURES THEIR PREPARATION OR CHEMICAL WORKING-UP TRANSPORTING
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Beschreibung
Zusammenfassung:	A graft copolymer based on a component a) consisting of silica which has been reacted with an unsaturated silane, and a polymer component b) containing sulphonic acid is proposed. The silica used is preferably a nanosilica and the unsaturated silane is an ethylenically unsaturated alkoxysilane. The component b) is represented by a copolymer based on AMPS and a further ethylenically unsaturated monomer. The polymer according to the invention, which as a rule is a nanocomposite, is outstandingly suitable as an additive in construction chemistry applications and in the development, exploitation and completion of underground mineral oil and natural gas deposits, its effect as a water retention agent being particularly advantageous at high salinities and increased temperatures.