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公开(公告)号:US5955109A
公开(公告)日:1999-09-21
申请号:US79220
申请日:1993-06-17
申请人: Richard Won , Martin A. Katz , Chung H. Cheng , Sergio Nacht
发明人: Richard Won , Martin A. Katz , Chung H. Cheng , Sergio Nacht
CPC分类号: A61K8/671 , A61K8/0279 , A61K8/8152 , A61K9/1635 , A61Q19/00 , A61K2800/56 , A61Q19/08 , Y10S514/859 , Y10S514/951
摘要: Retinoic acid compositions intended for topical application are incorporated in novel formulations in which they are retained as impregnants inside the pores of porous solid particles or microspheres. The pores form a continuous network open to the exterior of the particles, permitting outward diffusion of the retinoic acid impregnant at a controlled rate depending on the pore size. The impregnated particles are prepared by impregnation of preformed particles with the retinoic acid.
摘要翻译: 用于局部施用的视黄酸组合物掺入新的制剂中,其中它们作为浸渍剂保留在多孔固体颗粒或微球的孔内。 孔形成连续的网状物,通过颗粒的外部,允许维甲酸浸渍剂以受控的速度取决于孔径而向外扩散。 浸渍的颗粒通过用视黄酸浸渍预形成的颗粒来制备。
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2.
公开(公告)号:US5879716A
公开(公告)日:1999-03-09
申请号:US76824
申请日:1993-06-14
申请人: Martin A. Katz , Chung H. Cheng , Sergio Nacht
发明人: Martin A. Katz , Chung H. Cheng , Sergio Nacht
CPC分类号: A61Q19/00 , A61K8/0279 , A61K8/38 , A61K8/8152 , A61K2800/56 , A61Q17/005 , Y10S514/859 , Y10S514/951
摘要: Benzoyl peroxide intended for topical application is incorporated in novel formulations in which it is retained as impregnants inside the pores of porous solid particles or microspheres. The pores form a continuous network open to the exterior of the particles, permitting outward diffusion of the benzoyl peroxide impregnant at a controlled rate depending on the pore size. The impregnated particles are prepared by impregnation of preformed particles with the benzoyl peroxide.
摘要翻译: 用于局部施用的过氧化苯甲酰引入新的制剂中,其作为浸渍剂保留在多孔固体颗粒或微球的孔内。 孔形成连续的网状物,通过颗粒的外部,允许过氧化苯甲酰浸渍剂以受控的速率取决于孔径而向外扩散。 浸渍的颗粒通过用过氧化苯甲酰浸渍预制颗粒来制备。
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