Aqueous dispersion of a finely divided thermoplastic polymerizate useful for silky gloss and high gloss emulsion paints, is obtainable by radical aqueous emulsion polymerization in the presence of a thiourea

An aqueous dispersion of a finely divided thermoplastic polymerizate is obtainable by radical aqueous emulsion polymerization of an ethylenically unsaturated monomer M in the presence of a radical polymerization initiator and at least one acyl- or sulfonylthiourea compound. Independent claims are in...

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Bibliographische Detailangaben
Hauptverfasser:	PORZIO, ROBERT SHANE, SANDOR, MARIO, HUEMMER, WOLFGANG
Format:	Patent
Sprache:	eng ; ger
Schlagworte:	ADHESIVES CHEMICAL PAINT OR INK REMOVERS CHEMISTRY COATING COMPOSITIONS, e.g. PAINTS, VARNISHES ORLACQUERS COMPOSITIONS BASED THEREON CORRECTING FLUIDS DYES FILLING PASTES INKS MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVINGCARBON-TO-CARBON UNSATURATED BONDS METALLURGY MISCELLANEOUS APPLICATIONS OF MATERIALS MISCELLANEOUS COMPOSITIONS NATURAL RESINS ORGANIC MACROMOLECULAR COMPOUNDS PAINTS PASTES OR SOLIDS FOR COLOURING OR PRINTING POLISHES THEIR PREPARATION OR CHEMICAL WORKING-UP USE OF INORGANIC OR NON-MACROMOLECULAR ORGANIC SUBSTANCES ASCOMPOUNDING INGREDIENTS USE OF MATERIALS THEREFOR WOODSTAINS
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Beschreibung
Zusammenfassung:	An aqueous dispersion of a finely divided thermoplastic polymerizate is obtainable by radical aqueous emulsion polymerization of an ethylenically unsaturated monomer M in the presence of a radical polymerization initiator and at least one acyl- or sulfonylthiourea compound. Independent claims are included for: (1) preparation of the dispersion as above in the presence of at least one sulfonylthiourea (STU) compound of formula (I) below; (2) a coating agent in the form of an aqueous composition containing 10-60 wt.% of at least one finely divided polymerizate as defined above; (3) a coating agent in the form of a waterborne silk gloss or high gloss emulsion paint. Die vorleigende Erfindung betrifft wässrige Dispersionen feinteiliger thermoplastischer Polymerisate, erhältlich durch radikalische wässrige Emulsionspolymerisation ethylenisch ungesättigter Monomere M in Gegenwart eines die radikalische Polymerisation auslösenden Initiators und wenigstens einer Aryl- oder Sulfonylthioharnstoffverbindung sowie ein Verfahren zu ihrer Herstellung und die Verwendung der Polymerisate als Bindemittel in wässrigen Beschichtungsmitteln.