IMPROVED SOLVENT-FREE LOW ENERGY COATINGS

An aqueous coating composition having a PVC of from 70 to 80% comprising, based on the total volume solids of the dry coating unless otherwise stated, a) opacifying pigment particles comprising i) from 4 to 10% titanium dioxide ii) from 0 to 20% of hollow polymeric particles b) non-opacifying extend...

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Bibliographische Detailangaben
Hauptverfasser:	WHEELER, STEPHEN ARTHUR, WOODS, ANTHONY DAVID, LEDINGHAM, KATHERINE MARY, HORNY, JULIE ANNE, EMMETT, SIMON NICHOLAS, PEREZ-AMOROS, JAVIER
Format:	Patent
Sprache:	eng ; fre ; ger
Schlagworte:	ADHESIVES CHEMICAL PAINT OR INK REMOVERS CHEMISTRY COATING COMPOSITIONS, e.g. PAINTS, VARNISHES ORLACQUERS CORRECTING FLUIDS DYES FILLING PASTES INKS METALLURGY MISCELLANEOUS APPLICATIONS OF MATERIALS MISCELLANEOUS COMPOSITIONS NATURAL RESINS PAINTS PASTES OR SOLIDS FOR COLOURING OR PRINTING POLISHES USE OF MATERIALS THEREFOR WOODSTAINS
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Beschreibung
Zusammenfassung:	An aqueous coating composition having a PVC of from 70 to 80% comprising, based on the total volume solids of the dry coating unless otherwise stated, a) opacifying pigment particles comprising i) from 4 to 10% titanium dioxide ii) from 0 to 20% of hollow polymeric particles b) non-opacifying extender particles comprising i) calcium magnesium carbonate and/or ii) calcium carbonate and/or iii) nepheline syenite and/or iv) kaolin wherein i)+ii)+iii)+iv)=40 to 75% (to be announced by Katy) and iv) is 0 to 45% c) styrene-acrylic polymer binder particles having a calculated Fox Tg of from −30 to 5° C. having an acid value of from 15 to 65 mg KOH/g of polymer and wherein the polymer particles are derived from acrylic monomers and optionally further comprising styrene and/or its derivatives d) dispersant which is insoluble in water at pH 3 wherein the composition is free of volatile organic solvent.