公开(公告)号：US20080312390A1

公开(公告)日：2008-12-18

申请号：US11818480

申请日：2007-06-14

申请人： Jinyong Dong ,  Bochao Zhu ,  Zhichao Han ,  Changjun Zhang ,  Hui Niu ,  Shaoyi Wei ,  Jiguang Liu ,  Peihong Yao ,  Hongying Wang ,  Xiaojun Li ,  Dujin Wang ,  Pingsheng Zhang ,  Yajie Zhu ,  Junji Jia ,  Chunbo Huang

发明人： Jinyong Dong ,  Bochao Zhu ,  Zhichao Han ,  Changjun Zhang ,  Hui Niu ,  Shaoyi Wei ,  Jiguang Liu ,  Peihong Yao ,  Hongying Wang ,  Xiaojun Li ,  Dujin Wang ,  Pingsheng Zhang ,  Yajie Zhu ,  Junji Jia ,  Chunbo Huang

IPC分类号： C08F4/64 ,  C08F2/00 ,  C08F4/68 ,  C08F4/52

CPC分类号： C08F10/00 ,  C08F4/65912 ,  C08F4/65927 ,  C08F110/06 ,  C08F210/06 ,  C08F210/16 ,  C08F4/651 ,  C08F4/65904 ,  C08F2/001 ,  C08F2500/12 ,  C08F2500/21 ,  C08F2500/11

摘要： A process for preparing polypropylene compositions having high impact strength at low temperatures is disclosed in which the reaction is catalyzed by Ziegler-Natta/metallocene hybrid catalysts by the in-situ polymerization of one or more olefins of the formula CH2═CHR, in which R is hydrogen or an alkyl, cycloalkyl or aryl group having from 1 to 10 carbon atoms, and more specifically comprises preparing an olefin polymer by Ziegler-Natta catalyst components of the titanium or vanadium/metallocene hybrid catalysts while the metallocene components are inactivated beforehand by catalyst inactivators; and polymerizing one or more olefins in the presence of the above olefin polymer, followed by a reactivation of the metallocene components.

摘要翻译： 公开了一种制备在低温下具有高冲击强度的聚丙烯组合物的方法，其中该反应由齐格勒 - 纳塔/茂金属杂化催化剂通过一种或多种式CH 2 -CHR的烯烃的原位聚合催化，其中R 是氢或具有1至10个碳原子的烷基，环烷基或芳基，更具体地包括通过钛或钒/茂金属杂化催化剂的齐格勒 - 纳塔催化剂组分制备烯烃聚合物，同时通过催化剂预先将茂金属组分灭活 灭活剂 并在上述烯烃聚合物的存在下聚合一种或多种烯烃，接着再活化茂金属组分。

公开(公告)号：US20090062466A1

公开(公告)日：2009-03-05

申请号：US11718256

申请日：2004-11-30

申请人： Jinyong Dong ,  Jiguang Liu ,  Zhichao Han ,  Dujin Wang

发明人： Jinyong Dong ,  Jiguang Liu ,  Zhichao Han ,  Dujin Wang

IPC分类号： C08L23/08 ,  C08L23/12

CPC分类号： C08L23/0807 ,  C08F10/00 ,  C08F210/06 ,  C08F2410/05 ,  C08L23/0815 ,  C08L23/10 ,  C08L23/16 ,  C08L2314/02 ,  C08L2314/06 ,  C08F4/6545 ,  C08F4/65922 ,  C08L2666/06 ,  C08F210/18 ,  C08F236/00 ,  C08F210/16

摘要： The present invention belongs to the field of polyolefin alloy preparation, and particularly relates to a polyolefin composite material in good form with adjustable composition and performances, produced by controlling a composite catalyst composed of Zieglar-Natta catalyst and metallocene catalyst to be catalytic by stage in the olefin polymerization reaction. This material is composed of propylene polymer and ethylene copolymer which is obtained by copolymerizing ethylene with alpha olefin or diolefin, wherein: the molar content of alpha olefin or diolefin in the ethylene copolymer is 0%˜60%, and the ethylene copolymer is 3˜80% by weight of the polyolefin composite material; the polyolefin composite material is in particle form, and the ethylene copolymer has a molecular weight distribution of 1˜6 and a glass transition temperature of −80˜0° C.; and the ethylene copolymer produced in the reaction is dispersed homogeneously in the propylene polymer particles to form the polyolefin composite material.

摘要翻译： 本发明属于聚烯烃合金制备领域，特别涉及一种具有可调组合物和性能的良好形式的聚烯烃复合材料，其通过控制由齐格列塔 - 纳塔催化剂和茂金属催化剂组成的复合催化剂在催化阶段 烯烃聚合反应。 该材料由丙烯聚合物和乙烯共聚物组成，其通过乙烯与α-烯烃或二烯烃共聚获得，其中：乙烯共聚物中α-烯烃或二烯烃的摩尔含量为0％〜60％，乙烯共聚物为3〜 80重量％的聚烯烃复合材料; 聚烯烃复合材料为颗粒形式，乙烯共聚物的分子量分布为1〜6，玻璃化转变温度为-80〜0℃。 并且在反应中制备的乙烯共聚物均匀地分散在丙烯聚合物颗粒中以形成聚烯烃复合材料。