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公开(公告)号：US20200222330A1
公开(公告)日：2020-07-16
申请号：US16823768
申请日：2020-03-19
发明人： Jingxu Zhu , Yingliang Ma , Qingliang Yang , Kwok Yui Chow , Herman C. Lam
摘要： The present disclosure provides a process of producing a dry powder coated pharmaceutical capsule. The method includes preparing a dry powder film forming polymer coating composition to be coated onto an outer surface of the capsules, a size of the particulate coating powder being in a range from about 1 nm to about 500 μm. The capsules are placed into an interior of a rotatable housing and may be preheated. The dry powder coating composition is sprayed into the interior of the housing while the rotatable housing is rotating to produce a uniform coating of the dry powder coating composition on the outer surface of the capsules. The coated capsules are cured form a substantially uniform cured.
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