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1·Eudragit L30 D-55 was used as enteric coating material. A mathematical model was proposed to guide the coating technology.

以甲基丙烯酸共聚物水分散体为包衣材料，建立微丸包衣数学模型指导包衣工艺。

2·OBJECTIVE To study the dissolution profile of phosphate tetramethylpyrazine sustained release pellets coated with Eudragit pseudolatex.

目的研究磷酸川芎嗪丙烯酸树脂水分散体包衣缓释小丸的体外释药。

3·The systems include pectin beads crosslinked with zinc or any divalent cation of interest, which beads are then coated with Eudragit TM -type polymers.

所述系统包括与锌或任何目的二价阳离子交联的果胶珠粒，所述珠粒然后用型聚合物包被。

4·METHOD the osmotic acrylic resin Eudragit RS was synthesized respectively by means of solution polymerization, bulk polymerization and solution bulk polymerization.

方法：分别用溶液聚合、本体聚合和溶液-本体聚合的方法，制备渗透型药用丙烯酸树脂。