The emulsion polymerization process of stomach acrylic acid resin was studied.The product has properties of stability,pollution-free,with low costs and the capsulizing efficiency is high.

• 利用乳液聚合的方法制备水性胃溶型药物包衣用丙烯酸树脂,此法制备的水性药物包衣材料性能稳定,无污染,成本低,包衣效率高。