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Enteric coated product

阅读:57发布:2023-03-27

专利汇可以提供Enteric coated product专利检索,专利查询,专利分析的服务。并且,下面是Enteric coated product专利的具体信息内容。

1. A SOLID MEDICINAL ORAL DOSAGE UNIT CONTAINING AT LEAST ONE MEDICINAL AGENT, COMPRISING A SHAPED CORE CONTAINING A MEDICINAL AGENT SURROUNDED BY AN ENTERIC FILM OR LAYER OF A PARTIALLY ESTERIFIED POLYVINYL ALCOHOL IN WHICH THE HYDROXYL GROUPS OF THE VINYL GROUPS ARE PARTLY ESTERIFIED BY PHTHALIC ACID, PARTLY ACETYLATED, AND PARTLY UNREPALCED, SAID PARTIALLY ESTERIFIED POLYVINYL ALCOHOL HAVING A DEGREE OF POLYMERIZATION OF FROM 600 TO 800, A PHTHALYL CONTENT WITHIN THE RANGE OF FROM 60 TO 70%, AN ACETYL CONTENT OF FROM 1.6 TO 6.0%, SAID ENTERIC COATING BEING SUBSTANTIALLY INSOLUBLE IN THE STOMACH JUICES, SUBSTANTIALLY SOLUBLE IN THE INTESTINAL FLUIDS AND SOLUBLE IN 90-95% ETHYL ALCOHOL.
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