<p>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.</p>
申请公布号
SG11201401380P(A)
申请公布日期
2014.07.30
申请号
SG11201401380P
申请日期
2012.10.23
申请人
AKZO NOBEL COATINGS INTERNATIONAL B.V.
发明人
EMMETT, SIMON NICHOLAS;PEREZ-AMOROS, JAVIER;WHEELER, STEPHEN ARTHUR;WOODS, ANTHONY DAVID;LEDINGHAM, KATHERINE MARY;HORNY, JULIE ANNE