利索-全球专利检索

  1. 登录
  2. 注册

搜索结果

95 条记录 (耗时 0.039 秒)

    Molecular weight modification of thermoplastic polymers
    8.
    发明申请
    Molecular weight modification of thermoplastic polymers 审中-公开
    热塑性聚合物的分子量改性

    公开(公告)号：US20050197433A1

    公开(公告)日：2005-09-08

    申请号：US11037661

    申请日：2005-01-18

    申请人： Michael Roth ,  Rudolf Pfaendner ,  Dirk Simon

    发明人： Michael Roth ,  Rudolf Pfaendner ,  Dirk Simon

    IPC分类号： C08K5/00 ,  C08K5/32 ,  C08K5/3435 ,  C08K5/34

    CPC分类号： C08K5/32 ,  C08K5/0025 ,  C08K5/3435

    摘要： The invention relates to a process for the molecular weight increase/crosslinking of non-halogen-containing thermoplastic polymers, in which process a composition comprising a) a non-halogen-containing thermoplastic polymer; b) a functional compound having at least two free-radically reactive ethylenically unsaturated carbon bonds; and c) an alkoxyamine having a structural unit which forms free radicals at the melting temperature/processing temperature of the polymer, is mixed and heated above the melting point of the polymer in the case of crystalline polymers or the softening point in the case of amorphous polymers. The invention relates also to the composition itself, to the use thereof in increasing the molecular weight of polymers and to polymers having increased molecular weight or crosslinked polymers prepared in accordance with that process.

    摘要翻译： 本发明涉及一种非卤素热塑性聚合物分子量增加/交联的方法，其中该方法包括a）一种非卤素热塑性聚合物; b）具有至少两个自由基反应性烯属不饱和碳键的官能化合物; 和c）具有在聚合物的熔融温度/加工温度下形成自由基的结构单元的烷氧基胺在结晶聚合物的情况下被混合并加热到聚合物的熔点以上，或者在无定形的情况下为软化点 聚合物。 本发明还涉及组合物本身，其用于增加聚合物的分子量和具有增加的分子量的聚合物或根据该方法制备的交联聚合物。

    Grafting of ethylenically unsaturated monomers onto polymers
    9.
    发明授权
    Grafting of ethylenically unsaturated monomers onto polymers 失效
    将烯属不饱和单体接枝到聚合物上

    公开(公告)号：US06525151B1

    公开(公告)日：2003-02-25

    申请号：US09786186

    申请日：2001-03-01

    申请人： Michael Roth ,  Rudolf Pfaendner

    发明人： Michael Roth ,  Rudolf Pfaendner

    IPC分类号： C08F400

    CPC分类号： C08F4/00 ,  C08F2/38 ,  C08F255/02 ,  C08F265/04 ,  C08F291/00 ,  C08F293/005 ,  C08L51/003 ,  C08L53/00 ,  C08L53/02 ,  C08L2666/02 ,  C09D151/003 ,  C09D153/00 ,  C09J151/003 ,  C09J153/00

    摘要： The present invention relates to a process for the preparation of grafted polymers wherein in a first step A) a stable nitroxyl radical is grafted onto a polymer, which step comprises heating a polymer and a stable nitroxyl radical (NO.); and in a second step B) the grafted polymer of step A) is heated in the presence of an ethylenically unsaturated monomer or oligomer to a temperature at which cleavage of the nitroxyl-polymer bond occurs and polymerization of the ethylenically unsaturated monomer or oligomer is initiated at the polymer radical; maintaining said temperature for further polymerization and afterwards cooling down the mixture to a temperature below 60° C. Further subjects are grafted polymers prepared by said process, the use of the polymeric radical initiator and the use of NO radicals for grafting polymers.

    摘要翻译： 本发明涉及一种制备接枝聚合物的方法，其中在第一步骤A）中将稳定的硝基自由基接枝到聚合物上，该步骤包括加热聚合物和稳定的硝酰基（NO）; 并且在第二步骤B）中，将步骤A）的接枝聚合物在烯属不饱和单体或低聚物的存在下加热至发生硝酰基聚合物键断裂的温度，并且引发烯属不饱和单体或低聚物的聚合 在聚合物基团上; 保持所述温度进一步聚合，然后将混合物冷却至低于60℃的温度。其它受试者是通过所述方法制备的接枝聚合物，使用聚合自由基引发剂和使用NO自由基进行聚合。

    Grafting of nitroxyl terminated oligomers or polymers onto thermoplastic polymers
    10.
    发明授权
    Grafting of nitroxyl terminated oligomers or polymers onto thermoplastic polymers 失效
    将硝酰基封端的低聚物或聚合物接枝到热塑性聚合物上

    公开(公告)号：US07632891B2

    公开(公告)日：2009-12-15

    申请号：US10518873

    申请日：2003-06-12

    申请人： Jochen Fink ,  Michael Roth ,  Rudolf Pfaendner

    发明人： Jochen Fink ,  Michael Roth ,  Rudolf Pfaendner

    IPC分类号： C08L53/02 ,  C08L51/02

    CPC分类号： C08F293/005 ,  C08F4/00 ,  C08F8/30 ,  C08F10/00 ,  C08F2438/02 ,  C08G81/021 ,  C08F2/38

    摘要： The instant invention relates to a process for the preparation of grafted polymers wherein in a first step A) a oligomer or polymer is prepared by controlled radical polymerization in the presence of a stable free nitroxyl radical or a nitroxylether to obtain a nitroxyl terminated oligomer or polymer and in a second step B) the nitroxyl terminated oligomer or polymer is mixed and reacted with a thermoplastic or elastomeric polymer or copolymer in its molten state at a temperature at which cleavage of the nitroxyl-polymer/oligomer bond occurs, whereby the nitroxyl terminated oligomer or polymer is grafted onto the thermoplastic or elastomeric polymer. A further subject of the present invention is a grafted polymer prepared by said process.

    摘要翻译： 本发明涉及制备接枝聚合物的方法，其中在第一步骤A）中，通过在稳定的游离硝酰基或硝酰基醚的存在下通过可控自由基聚合制备低聚物或聚合物，以获得硝酰基封端的低聚物或聚合物 并且在第二步骤B）中，将硝酰基封端的低聚物或聚合物与其熔融状态下的热塑性或弹性体聚合物或共聚物在发生硝酰基聚合物/低聚物键断裂的温度下反应，由此将硝酰基封端的低聚物 或聚合物接枝到热塑性或弹性聚合物上。 本发明的另一个主题是通过所述方法制备的接枝聚合物。