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    • 19. 发明授权
    • PROCESS FOR PREPARING CROSS-LINKED POLYOLEFINS
    • 制备交联聚烯烃的方法
    • EP1423466B1
    • 2004-12-22
    • EP01969681.4
    • 2001-08-31
    • Borealis Technology Oy
    • BORVE, KjetilREDFORD, KeithSTORI, Aage
    • C08K5/28C08K5/14C08J3/24C08F8/30
    • C08K5/14C08F8/30C08F2810/20C08K5/43C08L23/02C08F110/06
    • The present invention refers to a process for preparing cross-linked polyolefins, comprising the steps of adding a diazido compound of the formula (I) N=N=N-X-R-X-N=N=N wherein R represents an aryl, alkyl or aralkyl group having 3 to 20 carbon atoms and X stands for -CO-, -O-CO- - SO2-, -PO2-, -PO3-, or -Si (=O)-, and a peroxide compound of the general formula (II) R1-X1-OO-X2-R2 wherein R1 and R2 are the same or different and represent hydrogen, an aryl, alkyl or aralkyl group having 3 to 20 carbon atoms and optionally comprising further peroxide groups, wherein one of R1 and R2 can form a ring, and X1 and X2 are the same or different and stand for a direct bond, -CO2- or -CO- to a polyolefin in powder or pellet form; mixing the product to obtain a mixture; extruding the mixture in an extruder at a temperature above the decomposition temperature of the diazido compound of formula (I) and of the peroxide compound of formula (II).
    • 本发明涉及制备交联聚烯烃的方法,包括加入式(I)的二叠氮化合物的步骤:其中R代表具有3至10个碳原子的芳基,烷基或芳烷基, 20个碳原子且X代表-CO - , - O-CO- -SO 2 - ,-PO 2 - ,-PO 3 - 或-Si(= O) - ,以及通式(II) X1-OO-X2-R2其中R1和R2相同或不同,并且代表氢,具有3-20个碳原子的芳基,烷基或芳烷基,并且任选地包含另外的过氧化物基团,其中R1和R2中的一个可以形成环 并且X1和X2相同或不同并且代表与粉末或粒料形式的聚烯烃直接键合-CO2-或-CO-; 混合产物以获得混合物; 在高于式(I)二叠氮化合物和式(II)过氧化物化合物的分解温度的温度下在挤出机中挤出混合物。