Water-swellable polymers
    1.
    发明申请
    Water-swellable polymers 审中-公开
    水溶胀性聚合物

    公开(公告)号:US20060134161A1

    公开(公告)日:2006-06-22

    申请号:US10528875

    申请日:2003-09-26

    IPC分类号: A61F2/00 C08G18/32 A61F13/00

    摘要: A water-swellable linear polyurethane polymer is formed by reacting a polyethylene oxide (e.g. PEG 4000 to 35,000), a difunctional compound (e.g. a diamine or diol such as 1,10-decanediol) with a diisocyanate. The ratio of the three components is generally in the range 0.1-1.5 to 1 to 1.1-2.5. The polyurethane is water-swellable in the range 300 to 1700% and soluble in certain organic solvents such as dichloromethane. It can be loaded with pharmaceutically active agents, particularly of high molecular weight, to produce controlled release compositions, such as pessaries etc.

    摘要翻译: 通过使聚环氧乙烷(例如PEG 4000〜35,000),双官能化合物(例如二胺或二醇,例如1,10-癸二醇)与二异氰酸酯反应形成水溶胀性线性聚氨酯聚合物。 三种成分的比例通常为0.1〜1.5〜1〜1.1〜2.5。 聚氨酯的水溶胀范围为300〜1700%,可溶于某些有机溶剂如二氯甲烷。 它可以装载特别是高分子量的药物活性剂,以产生控释组合物,例如子宫托等。

    Water-swellable polymers
    3.
    发明授权
    Water-swellable polymers 有权
    水溶胀性聚合物

    公开(公告)号:US08628798B2

    公开(公告)日:2014-01-14

    申请号:US13571596

    申请日:2012-08-10

    IPC分类号: A61K9/22 A61K31/215

    摘要: A water-swellable linear polyurethane polymer is formed by reacting a polyethylene oxide (e.g. PEG 4000 to 35,000), a difunctional compound (e.g. a diamine or diol such as 1,10-decanediol) with a diisocyanate. The ratio of the three components is generally in the range 0.1-1.5 to 1 to 1.1-2.5. The polyurethane is water-swellable in the range 300 to 1700% and soluble in certain organic solvents such as dichloromethane. It can be loaded with pharmaceutically active agents, particularly of high molecular weight, to produce controlled release compositions, such as pessaries etc.

    摘要翻译: 通过使聚环氧乙烷(例如PEG 4000〜35,000),双官能化合物(例如二胺或二醇,例如1,10-癸二醇)与二异氰酸酯反应形成水溶胀性线性聚氨酯聚合物。 三种成分的比例通常为0.1〜1.5〜1〜1.1〜2.5。 聚氨酯的水溶胀范围为300〜1700%,可溶于某些有机溶剂如二氯甲烷。 它可以装载特别是高分子量的药物活性剂,以产生控释组合物,例如子宫托等。

    Water-Swellable Polymers
    5.
    发明申请
    Water-Swellable Polymers 有权
    水溶性聚合物

    公开(公告)号:US20120302635A1

    公开(公告)日:2012-11-29

    申请号:US13571596

    申请日:2012-08-10

    IPC分类号: A61K47/34

    摘要: A water-swellable linear polyurethane polymer is formed by reacting a polyethylene oxide (e.g. PEG 4000 to 35,000), a difunctional compound (e.g. a diamine or diol such as 1,10-decanediol) with a diisocyanate. The ratio of the three components is generally in the range 0.1-1.5 to 1 to 1.1-2.5. The polyurethane is water-swellable in the range 300 to 1700% and soluble in certain organic solvents such as dichloromethane. It can be loaded with pharmaceutically active agents, particularly of high molecular weight, to produce controlled release compositions, such as pessaries etc.

    摘要翻译: 通过使聚环氧乙烷(例如PEG 4000〜35,000),双官能化合物(例如二胺或二醇,例如1,10-癸二醇)与二异氰酸酯反应形成水溶胀性线性聚氨酯聚合物。 三种成分的比例通常为0.1〜1.5〜1〜1.1〜2.5。 聚氨酯的水溶胀范围为300〜1700%,可溶于某些有机溶剂如二氯甲烷。 它可以装载特别是高分子量的药物活性剂,以产生控释组合物,例如子宫托等。