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公开(公告)号：US5888930A
公开(公告)日：1999-03-30
申请号：US828825
申请日：1997-03-13
CPC分类号： A01N25/18 , A01N25/12 , A61K9/1635 , A61K9/1641 , A61K9/1652 , Y10S514/963 , Y10S514/964
摘要： A durable and sprayable controlled release bead of active ingredient in the pores of a polymeric micro-porous bead having an anisotropic pore structure of large pores in the interior and small pores at the surface, the gradation of pore sizes between the interior and the surface being continuous.
摘要翻译： 在聚合物微孔珠的孔中具有在内部具有大孔的各向异性孔结构和表面上的小孔的活性成分的耐久且可喷雾的控释珠，内表面和内表面之间的孔径的等级为 连续。
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公开(公告)号：US4769027A
公开(公告)日：1988-09-06
申请号：US16966
申请日：1987-02-24
CPC分类号： A61K9/5078
摘要： Prills of pharmaceutically acceptable material are coated first with a water-permeable polymeric matrix containing a water-soluble pharmaceutically beneficial agent and then overcoated with a water-permeable film containing dispersed therein a water-soluble, particulate pore-forming material.
摘要翻译： 药学上可接受的物质的片剂首先用含有水溶性药物有益剂的水可渗透的聚合物基质包被，然后用含有分散在其中的水溶性颗粒成孔材料的透水膜进行涂覆。
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公开(公告)号：US4622344A
公开(公告)日：1986-11-11
申请号：US585977
申请日：1984-03-05
摘要： There is disclosed novel copper ion-exchange media and processes for the recovery of cupric ion from ammoniacal copper solutions and for the recovery of spent printed circuit board etchant. The novel ion-exchange media comprise hydrophobic nonporous polymer plasticized and swollen with a monomeric organic liquid copper ion-exchange agent such as beta-diketones or hydroxyoximes. A novel copper ion-complexing agent, 1-n-octylphenyl-p-1,3-butanedione, is also disclosed. The processes essentially comprise contacting the ammoniacal cupric ion-containing solution or spent etchant with the novel copper ion-exchange media to extract copper in cupric ion form. Copper can be recovered therefrom by conventional methods such as acid stripping and electrowinning.
摘要翻译： 公开了新颖的铜离子交换介质以及用于从氨铜溶液回收铜离子和回收废印刷电路板蚀刻剂的方法。 新型离子交换介质包括用单体有机液体铜离子交换剂（例如β-二酮或羟基肟）增塑和溶胀的疏水性无孔聚合物。 还公开了一种新型铜离子络合剂1-正辛基苯基 - 对1,3-丁二酮。 该方法基本上包括使含氨基铜离子的溶液或废蚀刻剂与新的铜离子交换介质接触以提取铜离子形式的铜。 铜可以通过常规方法如酸剥离和电解提取来回收。
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公开(公告)号：USRE33994E
公开(公告)日：1992-07-14
申请号：US390518
申请日：1989-08-04
申请人： Richard W. Baker , James W. Brooke
发明人： Richard W. Baker , James W. Brooke
IPC分类号： A61K9/28 , A61K31/135
CPC分类号： A61K31/135 , A61K9/2853
摘要： A composition for use in an aqueous environment which .[.comprise.]. .Iadd.comprises .Iaddend.a formulation containing a water-soluble pharmaceutically beneficial agent, a water-insoluble, water-permeable film coating surrounding the formulation, and particulate, water-soluble, pore-forming material dispersed within the film coating.The questions raised in reexamination request No. 90/001,344, filed Oct. 5, 1987, have been considered and the results thereof are reflected in this reissue patent which constitutes the reexamination certificate required by 35 U.S.C. 307 as provided in 37 CFR 1.570(e).
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公开(公告)号：US4687660A
公开(公告)日：1987-08-18
申请号：US640951
申请日：1984-08-15
申请人： Richard W. Baker , James W. Brooke
发明人： Richard W. Baker , James W. Brooke
CPC分类号： A61K9/2826 , A61K9/0004 , A61K9/2866 , A61K9/2853
摘要： A composition for use in an aqueous environment which comprise a formulation containing a water-soluble pharmaceutically beneficial agent, a water-insoluble, water-permeable film coating surrounding the formulation, and particulate, water-soluble, pore-forming material dispersed within the film coating.
摘要翻译： 一种用于水性环境的组合物，其包含含有水溶性药物有益剂，围绕该制剂的水不溶性，水可渗透膜包衣和分散在该膜内的颗粒状水溶性成孔材料的制剂 涂层。
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