Acqueous binder composition comprising oligomers

The present invention relates to an aqueous binder composition comprising: at least one polymer P with a glass transition temperature Tg in the range from -20 to +60 DEG C in the form of an aqueous polymer dispersion PD obtainable by free-radical emulsion polymerization of at least one ethylenically...

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Bibliographische Detailangaben
Hauptverfasser:	SCHASTIAN ROLKER, ROLF DERSCH, FELIX BAAH
Format:	Patent
Sprache:	eng
Schlagworte:	ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE ADHESIVES CHEMICAL PAINT OR INK REMOVERS CHEMISTRY COATING COMPOSITIONS, e.g. PAINTS, VARNISHES ORLACQUERS COMPOSITIONS BASED THEREON COMPOSITIONS OF MACROMOLECULAR COMPOUNDS CORRECTING FLUIDS DYES FILLING PASTES INKS METALLURGY MISCELLANEOUS APPLICATIONS OF MATERIALS MISCELLANEOUS COMPOSITIONS NATURAL RESINS NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL ORGANIC MACROMOLECULAR COMPOUNDS PAINTS PASTES OR SOLIDS FOR COLOURING OR PRINTING POLISHES THEIR PREPARATION OR CHEMICAL WORKING-UP USE OF MATERIALS AS ADHESIVES USE OF MATERIALS THEREFOR WOODSTAINS
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Beschreibung
Zusammenfassung:	The present invention relates to an aqueous binder composition comprising: at least one polymer P with a glass transition temperature Tg in the range from -20 to +60 DEG C in the form of an aqueous polymer dispersion PD obtainable by free-radical emulsion polymerization of at least one ethylenically unsaturated monomer M, and 0.1 to 10 percent by weight, based on the sum of polymer P and oligomer, of one or more oligomers formed from ethylenically unsaturated monomers and having a mean molecular weight Mw of 1000 to 30 000 g/mol and a glass transition temperature Tg in the range from +60 to +120 DEG C and an acid number in the range from 50 to 350, to a process for preparation thereof, to coating materials comprising them, and to the use of water-soluble oligomers in a mixture with aqueous polymer dispersions in coating materials which lead to coatings with increased shine.