Preparations of non-steroidal analgesics
    37.
    发明授权
    Preparations of non-steroidal analgesics 失效
    非甾体止痛药的制备

    公开(公告)号:US06251434B1

    公开(公告)日:2001-06-26

    申请号:US09101694

    申请日:1998-07-15

    IPC分类号: A61K922

    摘要: Preparations of non-steroidal analgesics with antipyretic and antiinflammatory effect are obtainable by extrusion and shaping of a melt, comprising, besides one or more active ingredients, a mixture of a) 40-99.5% by weight of a homopolymer of N-vinylpyrrolidone with a Fikentscher K value of 30, b) 0.25-59.75% by weight of a water-soluble copolymer of N-vinylpyrrolidone, and c) 0.25-10% by weight of one or more physiologically acceptable salts of sodium or potassium, where the stated amounts are based on the total of components a), b) and c).

    摘要翻译: 具有解热和抗炎作用的非甾体镇痛药的制备可通过挤出和成型熔体获得,除了一种或多种活性成分之外还包含a)40-99.5重量%的N-乙烯基吡咯烷酮均聚物与Fikentscher的混合物 K值为30,b)0.25-59.75重量%的N-乙烯基吡咯烷酮的水溶性共聚物,和c)0.25-10重量%的一种或多种生理学上可接受的钠或钾盐,其中所述量基于 组分a),b)和c)的总和。

    Test solvent for evaluating the compatibility of biologically active substances and graft copolymers
    39.
    发明授权
    Test solvent for evaluating the compatibility of biologically active substances and graft copolymers 有权
    用于评估生物活性物质和接枝共聚物的相容性的测试溶剂

    公开(公告)号:US09594073B2

    公开(公告)日:2017-03-14

    申请号:US13578659

    申请日:2011-02-15

    IPC分类号: G01N33/487 C08F283/06

    CPC分类号: G01N33/487 C08F283/06

    摘要: A liquid mixture, comprising a) at least one compound selected from polyols, polyol ethers wherein at least one hydroxyl group is unetherified, or polyalkylene ethers wherein at least one terminal hydroxyl group is unetherified, b) 1,3-bis(caprolactam-1-yl) butane, and c) diacetoxybutane mimics the solubility properties of a graft copolymer comprising a poly(alkylene glycol) backbone and a vinyl acetate/N-vinylcaprolactam copolymer grafted onto the backbone. In a method for evaluating the compatibility of a biologically active substance with the graft copolymer i) the biologically active sub-stance is brought into contact with the liquid mixture, and ii) the phase behavior of the test system and/or the solubility of the biologically active substance in the mixture is determined.

    摘要翻译: 一种液体混合物,其包含a)至少一种选自多元醇的化合物,其中至少一个羟基未醚化的多元醇醚或其中至少一个末端羟基未醚化的聚亚烷基醚,b)1,3-双(己内酰胺-1 - 环烷基)丁烷,和c)二乙酰氧基丁烷模拟包含聚(亚烷基二醇)主链和接枝到主链上的乙酸乙烯酯/ N-乙烯基己内酰胺共聚物的接枝共聚物的溶解性。 在用于评价生物活性物质与接枝共聚物的相容性的方法中,i)使生物活性物质与液体混合物接触,和ii)测试体系的相行为和/或溶解度 确定混合物中的生物活性物质。