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    Biocompatible polymer compositions for dual or multi staged curing
    2.
    发明授权
    Biocompatible polymer compositions for dual or multi staged curing 有权
    用于双阶段或多阶段固化的生物相容性聚合物组合物

    公开(公告)号：US08729202B2

    公开(公告)日：2014-05-20

    申请号：US11070217

    申请日：2005-03-03

    申请人： Roshan Tyrrel Anton Mayadunne ,  Raju Adhikari ,  Pathiraja Arachchillage Gunatillake

    发明人： Roshan Tyrrel Anton Mayadunne ,  Raju Adhikari ,  Pathiraja Arachchillage Gunatillake

    IPC分类号： C08F10/00

    CPC分类号： C08G18/10 ,  C08G18/3206 ,  C08G18/4277 ,  C08G18/428 ,  C08G18/4854 ,  C08G18/7671 ,  C08G18/771 ,  C08G18/8116 ,  C08L75/16 ,  C08L101/16

    摘要： The present invention provides a biocompatible polymer composition for use in biomedical applications comprising a base molecule, a linker molecule and at least one initiator compound, said base molecule having at least two differing functionalities, and said linker molecule having a functionality reactive with at least one functionality of said base molecule, the first of said at least two functionalities of said base molecule enabling a first curing stage of said polymer composition by reaction with said linker molecule, and the second and any further functionality of said base molecule enabling second and further curing stages of said polymer composition, said first, second and any further curing stages being capable of activation simultaneously or independently of each other as required.

    摘要翻译： 本发明提供了用于生物医学应用的生物相容性聚合物组合物，其包含基础分子，连接分子和至少一种引发剂化合物，所述碱基分子具有至少两个不同的官能团，并且所述连接分子具有与至少一个 所述碱基分子的功能性，所述碱基分子的所述至少两个官能团中的第一个能够通过与所述连接分子的反应来实现所述聚合物组合物的第一固化阶段，并且所述碱基分子的第二和任何其它官能团能够进行第二次和进一步固化 所述聚合物组合物的阶段，所述第一，第二和任何其它固化阶段能够根据需要同时或彼此独立地活化。

    Shape memory polyurethane or polyurethane-urea polymers
    7.
    发明授权
    Shape memory polyurethane or polyurethane-urea polymers 失效
    形状记忆聚氨酯或聚氨酯 - 脲聚合物

    公开(公告)号：US06858680B2

    公开(公告)日：2005-02-22

    申请号：US10054742

    申请日：2002-01-22

    申请人： Pathiraja A. Gunatillake ,  Simon J. McCarthy ,  Gordon F. Meijs ,  Raju Adhikari

    发明人： Pathiraja A. Gunatillake ,  Simon J. McCarthy ,  Gordon F. Meijs ,  Raju Adhikari

    IPC分类号： A61L27/00 ,  A61L27/18 ,  A61L27/26 ,  A61L27/50 ,  A61L29/04 ,  A61L29/06 ,  A61L29/14 ,  A61L31/00 ,  A61L31/04 ,  A61L31/06 ,  A61L31/14 ,  C08G18/38 ,  C08G18/48 ,  C08G18/61 ,  C08G18/66 ,  C08J5/00 ,  C08L75/00 ,  C08L75/04 ,  C08L101/00 ,  C08G77/38

    CPC分类号： C08G18/6674 ,  A61L27/18 ,  A61L27/26 ,  A61L27/50 ,  A61L29/049 ,  A61L29/06 ,  A61L29/14 ,  A61L31/041 ,  A61L31/06 ,  A61L31/14 ,  A61L2400/16 ,  C08G18/3893 ,  C08G18/4858 ,  C08G18/61 ,  C08G2280/00 ,  C08L75/04 ,  Y10S525/937 ,  C08L75/02 ,  C08L83/04

    摘要： A shape memory polyurethane or polyurethane-urea polymer including a reaction product of: (A) (a) silicon-based macrodiol, silicon-based macrodiamine and/or polyether of the formula (I): A—[(CH2)m—O]n—(CH2)m—A′, wherein A and A are endcapping groups; m is an integer of 6 or more; and n is an integer of 1 or greater; (b) a diisocyanate; and (c) a chain extender; or (B) (b) a diisocyanate: and (c) a chain extender, said polymer having a glass transition temperature which enables the polymer to be formed into a first shape at a temperature higher than the glass transition temperature and maintained in said first shape when the polymer is cooled to a temperature lower than the glass transition temperature, said polymer then being capable of resuming its original shape on heating to a temperature higher than the glass transition temperature. The present invention also relates to a shape memory composition which includes a blend of two or more of the shape memory polyurethane or polyurethane-urea polymers defined above or at least one shape memory polyurethane or polyurethane-urea polymer defined above in combination with another material. The present invention further relates to processes for preparing materials having improved mechanical properties, clarity, processability, biostability and/or degradation resistance and devices or articles containing the shape memory polyurethane or polyurethane-urea polymer and/or composition defined above.

    摘要翻译： 一种形状记忆聚氨酯或聚氨酯 - 脲聚合物，其包括以下反应产物：（A）（a）硅基大分子二醇，硅基大二胺和/或式（I）的聚醚：A - [（CH 2）m O] n - （CH 2）m -A'，其中A和A'是封端基团; m为6以上的整数， n为1以上的整数， （b）二异氰酸酯; 和（c）扩链剂; 或（B）（b）二异氰酸酯和（c）扩链剂，所述聚合物具有玻璃化转变温度，使聚合物能够在高于玻璃化转变温度的温度下形成第一形状，并保持在所述第一 当聚合物冷却至低于玻璃化转变温度的温度时，所述聚合物在加热至高于玻璃化转变温度的温度时能够恢复其原始形状。 本发明还涉及一种形状记忆组合物，其包括两种或更多种上述定义的形状记忆聚氨酯或聚氨酯 - 脲聚合物或至少一种形状记忆聚氨酯或聚氨酯 - 脲聚合物与另一种材料组合的共混物。 本发明还涉及制备具有改进的机械性能，透明度，可加工性，生物稳定性和/或耐降解性的材料的方法以及含有上述定形形状记忆聚氨酯或聚氨酯 - 脲聚合物和/或组合物的装置或制品。