| 摘要 |
FIELD: pharmaceutics.SUBSTANCE: invention relates to a coating composition suitable for coating pharmaceutical or nutriceutical dosage form, comprising a core comprising one or more pharmaceutical or nutraceutical active ingredients, wherein the coating composition is comprising at least 20% by weight of an enteric core/shell polymer composition, derived from an emulsion polymerisation process, wherein the core of the core/shell polymer composition is formed by a water-insoluble, cross-linked polymer or copolymer, containing polymerised links of n-butyl acrylate, n-butyl methacrylate or methyl methacrylate and ethylene glycol dimethacrylate, and the shell of the core/shell polymer composition is formed by an anionic polymer or copolymer, containing polymerised links from 10 to 40 wt% of acrylic or methacrylic acid, from 10 to 50 wt% of ethyl acrylate and from 10 to 80 wt% C-C-alkyl Ester of acrylic acid or methacrylic acid.EFFECT: coating of the dosage form.13 cl, 3 tbl |
