Water-borne soil resistant coatings
AssigneeICI Australia Operations Proprietary Limited
InventorsElizabeth A. Salter, Craig D. Meekings, Bruce Leary
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Abstract
A soil resistant aqueous coating composition in which the binder consists of a blend of a low Tg polymeric dispersion and a high Tg polymeric dispersion. The PVC of the composition is less than the critical PVC and the Tg of the low Tg polymer dispersion is less than 0.degree. C. and the Tg of the high Tg polymer dispersion is a least 35.degree. C. and the volume ratio of low Tg polymer dispersion to high Tg polymer dispersion is from 0.4:1 to 1.4:1.
Claims13
An aqueous coating composition comprising a blend of a low Tg and a high Tg aqueous polymeric dispersions wherein the PVC of the coating composition as measured by opacity is less than the critical PVC, the polymer dispersion with low Tg has a Tg less than 0.degree. C., the polymer dispersion with high Tg is non film-forming, has a Tg of at least 35.degree. C. and the volume ratio of low Tg polymer dispersion to high Tg polymer dispersion is from 0.4:1 to 1.4:1.
Dependencies are inferred from the claim text.