Biologically decomposable and absorbable polymer and method for producing the same
    13.
    发明专利
    Biologically decomposable and absorbable polymer and method for producing the same 审中-公开
    生物可分解和可吸收的聚合物及其生产方法

    公开(公告)号:JP2005220333A

    公开(公告)日:2005-08-18

    申请号:JP2004061329

    申请日:2004-02-03

    摘要: PROBLEM TO BE SOLVED: To provide a biologically decomposable and absorbable polymer having fluidity and viscous, and to provide a method for producing the same. SOLUTION: This biologically decomposable and absorbable polymer comprises a copolymer of a lactide and ε-caprolactone, wherein the polymer has a weight-average molecular weight of 2,000 to 10,000. The method for producing the biologically decomposable and absorbable polymer comprises preparing a mixture of the lactide and the ε-caprolactone, adding a 2-18C alcohol compound to the mixture in an amount of 5-40(w/w)% based on the mixture, and polymerizing the lactide with the ε-caprolactone. COPYRIGHT: (C)2005,JPO&NCIPI

    摘要翻译: 要解决的问题:提供具有流动性和粘性的生物可分解和可吸收的聚合物,并提供其制备方法。 解决方案:该生物可分解和可吸收的聚合物包含丙交酯和ε-己内酯的共聚物,其中聚合物的重均分子量为2,000至10,000。 用于制备生物可分解和可吸收的聚合物的方法包括制备丙交酯和ε-己内酯的混合物,基于混合物以5-40(w / w)%的量向混合物中加入2-18C醇化合物 并用ε-己内酯聚合丙交酯。 版权所有(C)2005,JPO&NCIPI

    Radical polymerizable macrocyclic resin composition with low polymerization stress
    16.
    发明专利
    Radical polymerizable macrocyclic resin composition with low polymerization stress 有权
    具有低聚合应力的光学可聚合大环化树脂组合物

    公开(公告)号:JP2012188672A

    公开(公告)日:2012-10-04

    申请号:JP2012107315

    申请日:2012-05-09

    摘要: PROBLEM TO BE SOLVED: To provide a method of producing a macrocyclic oligomer, so that a dental restorative composite reduced in polymerization shrinkage and polymerization stress is obtained.SOLUTION: This invention relates to a method of preparing a free-radical polymerizable macrocyclic oligomer used for restorative dentistry and having at least one polymerizable group, comprising: a step (i) of activating a condensation group of a reactive and free-radical polymerizable precursor ; and a step (ii) of preparing the free-radical polymerizable macrocyclic oligomer under pseudo-high-dilution condition via a condensation between a reactive and free radical polymerizable precursor thus activated and coupling agents to afford carbonate, ester, siloxane, phosphonate linkages.

    摘要翻译: 待解决的问题:提供一种制备大环低聚物的方法,从而获得减少聚合收缩和聚合应力的牙齿修复复合物。 解决方案:本发明涉及一种制备用于修复牙科并具有至少一个可聚合基团的可自由基聚合的大环寡聚物的方法,其包括:步骤(i)活化反应性和游离基的缩合基团, 可自由基聚合的前体; 以及通过如此活化的反应性和可自由基聚合前体与偶联剂之间的缩合在假高度稀释条件下制备可自由基聚合的大环低聚物以提供碳酸酯,酯,硅氧烷,膦酸酯键的步骤(ii)。 版权所有(C)2013,JPO&INPIT