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    POLYTITANIC ACID ESTERS AND USE THEREOF TO PRODUCE IMPLANTABLE, OPTIONALLY ABSORBABLE FIBERS
    1.
    发明申请
    POLYTITANIC ACID ESTERS AND USE THEREOF TO PRODUCE IMPLANTABLE, OPTIONALLY ABSORBABLE FIBERS 审中-公开
    多糖酸酯及其用于生产可植入，可选吸收纤维的用途

    公开(公告)号：US20130328234A1

    公开(公告)日：2013-12-12

    申请号：US13985755

    申请日：2012-02-14

    申请人： Rainer Jahn ,  Miranda Rothenburger-Glaubitt ,  Walther Glaubitt ,  Joern Probst

    发明人： Rainer Jahn ,  Miranda Rothenburger-Glaubitt ,  Walther Glaubitt ,  Joern Probst

    IPC分类号： A61L31/14 ,  D01F11/00

    CPC分类号： A61L31/148 ,  C07C59/06 ,  C07C59/08 ,  C07F7/003 ,  D01F1/10 ,  D01F2/06 ,  D01F9/08 ,  D01F11/00

    摘要： The invention relates to polytitanic acid esters having linear cross-linking structures, obtainable by reacting a titanium compound that is soluble in an alcohol, in water or in a mixture of water and alcohol and that has the composition (I) Ti(R)mXn  (I), wherein the groups R independently mean alkoxy, carboxy, or OH, X means halogen, m=0 to 4, n=0 to 4, and m+n=4, with a compound (II) that contains the following structural unit: [O═CR4—(CR5R3)p—CR1R2—O]−, wherein p is 0 or 1 and wherein(a) R1 and R2 are independently selected from among hydrogen, alkyl and alkenyl, R3 and R5 are independently selected from among hydrogen or an unsubstituted or substituted alkyl or alkenyl, R4 is OH or O(Mx+)1/x, wherein M is a metal or ammonium and x is 1 or 2, or(b) R1 and R2 together mean ═O and R3, R5 and R4 are independently selected from among hydrogen, alkyl and alkenyl,wherein the titanium compound (I) is reacted with compound (II) at a molar ratio of 1 to 0.5-1.9, with respect to an unbridged titanium compound, i.e., a (monomeric) titanium compound containing a single titanium atom, with the stipulation that, if compound (I) has no more than 2 hydroxy groups, and if the reaction occurs in a water-free medium, the product formed by the reaction is then brought in contact with water in such a way that a hydrolytic condensation reaction of the produced titanium compound(s) occurs in all cases.Such polytitanic acid esters can be spun in the form of viscous masses to create fibers.

    摘要翻译： 本发明涉及具有线性交联结构的聚钛酸酯，其通过使可溶于醇的钛化合物在水中或在水和醇的混合物中反应而获得，并且具有组成（I）Ti（R）mXn （I）其中基团R独立地表示烷氧基，羧基或OH，X表示卤素，m = 0至4，n = 0至4，m + n = 4与化合物（II） 结构单元：[O = CR4-（CR5R3）p-CR1R2-O] - ，其中p为0或1，其中（a）R1和R2独立地选自氢，烷基和烯基，R3和R5独立地选自 在氢或未取代或取代的烷基或烯基中，R 4是OH或O（M x +）1 / x，其中M是金属或铵，x是1或2，或（b）R 1和R 2一起表示= O， R3，R5和R4独立地选自氢，烷基和烯基，其中钛化合物（I）与化合物（II）的摩尔比为1至0.5-1.9，相对于非桥 d钛化合物，即含有单一钛原子的（单体）钛化合物，其规定如果化合物（I）具有不超过2个羟基，并且如果反应发生在无水介质中，则产物 然后与反应形成的水以与所生成的钛化合物发生水解缩合反应的方式进行接触。 这种聚钛酸酯可以以粘性质量的形式纺丝以产生纤维。