Aqueous coating compositions are described where the binder includes an anionically stabilised addition polymerised polymeric dispersion. The monomers used to prepare the dispersion are acrylic acid and methacrylic acid as a carboxylic monomer and styrene, alpha methyl styrene or vinyl toluene as a hydrophobic high Tg aromatic monomer and an alkyl acrylate ester as a low Tg monomer. The relative weight proportions of the monomers are required to satisfy a formula. Blends of high and low Tg dispersions are also described. Paints formulated with the binders exhibit an excellent balance of stain resistance, tint strength and viscosity stability.
申请公布号
CA2266035(A1)
申请公布日期
1998.03.12
申请号
CA19972266035
申请日期
1997.09.08
申请人
ORICA AUSTRALIA PTY. LTD.
发明人
MADIGAN, LISA;LEARY, BRUCE;ELSBURY, KAREN;WEERASINGHE, THAMALA;MARISE, CHANTEL;HOULIHAN, PATRICK;CAREY, MICHELLE;GEORGE, SUSAN