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 an d 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(C)
申请公布日期
2004.04.20
申请号
CA19972266035
申请日期
1997.09.08
申请人
ORICA AUSTRALIA PTY. LTD.
发明人
HOULIHAN, PATRICK;WEERASINGHE, THAMALA;CAREY, MICHELLE;MARISE, CHANTEL;ELSBURY, KAREN;GEORGE, SUSAN;MADIGAN, LISA;LEARY, BRUCE