公开(公告)号：US20100298501A1

公开(公告)日：2010-11-25

申请号：US12735034

申请日：2008-11-27

申请人： Fabiana Fantinel ,  Shahram Mihan ,  Isabella Camurati

发明人： Fabiana Fantinel ,  Shahram Mihan ,  Isabella Camurati

IPC分类号： C08L23/06 ,  C08F210/02 ,  C08F4/00 ,  C08F4/78

CPC分类号： C08F210/16 ,  C08F4/6392 ,  C08F4/69 ,  C08F210/06 ,  C08F210/14 ,  C08F2500/08 ,  C08F2500/03 ,  C08F2500/12 ,  C08F2500/20 ,  C08F2500/17

摘要： A copolymer of ethylene, a catalyst system suitable to prepare the copolymer, and a process to prepare such copolymer are described. The copolymer comprises from 60 to 80% by weight of ethylene and from 20 to 40% by weight of at least one first α-olefin comonomer having n carbon atoms and at least one second α-olefin comonomer having (n−1) carbon atoms, n being from 4 to 13, has a polydispersity Mw/Mn equal to or lower than 3.5, and a density from 0.855 to 0.880 g/cm3. The copolymer is obtained by subjecting ethylene and said at least one first α-olefin comonomer to a polymerization stage in the presence of a catalyst system capable of forming a copolymer of ethylene and said at least one first α-olefin comonomer having n carbon atoms, while forming the second α-olefin comonomer having (n−1) carbon atoms.

摘要翻译： 描述了乙烯的共聚物，适于制备共聚物的催化剂体系，以及制备这种共聚物的方法。 共聚物包含60至80重量％的乙烯和20至40重量％的至少一种具有n个碳原子的至少一种第一α-烯烃共聚单体和至少一种具有（n-1）个碳原子的第二α-烯烃共聚单体 n为4〜13，多分散性Mw / Mn为3.5以下，密度为0.855〜0.880g / cm 3。 该共聚物是通过使乙烯和所述至少一种第一α-烯烃共聚单体在能够形成乙烯和所述至少一种具有n个碳原子的第一α-烯烃共聚单体的共聚物的催化剂体系存在下进行聚合反应得到的， 同时形成具有（n-1）个碳原子的第二α-烯烃共聚单体。