Controlled release coatings on LCST polymer-coated shaped bodies, such as detergent tablets, are applied from aqueous dispersions containing a coating material, a dispersant and a co-dispersant

摘要

Coatings on top of lower critical solution temperature (LCST) coatings on shaped bodies of dispersions, comprise (in wt.%): (a) a coating material solid at 20 deg C (10-80); (b) a dispersant (0.1-30); and (c) a co-dispersant (0.1-30) in water (15-99). The wt.% of (a)-(c) are based on the (a)-(c) mixture weight, the weight of water being based on the total dispersion and the ratio of (b):(c) being 0.5-20:1.