| abstract |
Dry powders useful for preparing water-soluble enteric suspensions that are non-toxic, edible, enteric film-coated and useful for pharmaceutical tablet coatings include:n n n a) i) 20 to 85% by weight of at least one of alkyl acrylate or alkyl methacrylate functional groups;n n n Ii) 80 to 15% by weight of at least one of vinyl or vinylidene functional groups comprising carboxylic acid groups capable of forming salts;n n n Iii) acrylic resin comprising 0 to 30% by weight of at least one of vinyl or vinylidene functional groups copolymerizable with i) and ii);n n n b) an alkalizing agent capable of reacting with the acrylic resin, wherein 0.1 to 10 mol% of acid groups are present in salt form after the reaction; Andn n n c) non-adhesives. |