MATERIALS COMPRISING WATER-SOLUBLE POLYMER PARTICLES AND METHODS OF MAKING AND USING THEM

摘要

One aspect of the invention relates to new materials for storing, protecting, selectively releasing, and applying active ingredients (e.g. pharmaceuticals and other chemicals). In certain embodiments, the invention provides materials impregnated with water-soluble polymer particles which contain active ingredients which may be selectively released and dispensed in response to contact with water or another liquid.