公开(公告)号：US20060293461A1

公开(公告)日：2006-12-28

申请号：US11296830

申请日：2005-12-07

Applicant: Peijun Jiang ,  Aspy Mehta ,  Armenag Dekmezian ,  Sunny Jacob ,  Andrew Narvaez ,  Pradeep Shirodkar

Inventor： Peijun Jiang ,  Aspy Mehta ,  Armenag Dekmezian ,  Sunny Jacob ,  Andrew Narvaez ,  Pradeep Shirodkar

IPC: C08L23/04

CPC classification number: C08L23/10 ,  C08F110/06 ,  C08F210/06 ,  C08L23/145 ,  C08L2308/00 ,  C08L2312/00 ,  C08L2312/02 ,  C08L2314/06 ,  C08F2/001 ,  C08L2666/06 ,  C08F210/18 ,  C08F236/20 ,  C08F2500/20

Abstract: In a process for producing a heterogeneous polymer blend, at least one first monomer is polymerized in a first reaction zone in the presence of a supported catalyst to produce a thermoplastic first polymer having a crystallinity of at least 30%. At least part of said first polymer is then contacted with at least one second monomer and at least one polyene in a second reaction zone under conditions sufficient to polymerize said second monomer to produce a second polymer having a crystallinity of less than 20%. The second polymer is at least partially cross-linked in the second reaction zone such that at least a fraction of the second polymer is insoluble in xylene and such that the first and second polymers form different phases of the blend.

Abstract translation: 在制备非均相聚合物共混物的方法中，至少一种第一单体在负载型催化剂的存在下在第一反应区中聚合以产生具有至少30％的结晶度的热塑性第一聚合物。 然后在足以使所述第二单体聚合以产生结晶度小于20％的第二聚合物的条件下，将至少部分所述第一聚合物与至少一种第二单体和至少一种多烯在第二反应区中接触。 第二聚合物在第二反应区域中至少部分交联，使得至少一部分第二聚合物不溶于二甲苯并使得第一和第二聚合物形成共混物的不同相。

公开(公告)号：US20060293453A1

公开(公告)日：2006-12-28

申请号：US11295930

申请日：2005-12-07

Applicant: Peijun Jiang ,  Sunny Jacob ,  Pradeep Shirodkar ,  Armenag Dekmezian ,  Aspy Mehta

Inventor： Peijun Jiang ,  Sunny Jacob ,  Pradeep Shirodkar ,  Armenag Dekmezian ,  Aspy Mehta

IPC: C08F8/00

CPC classification number: C08F210/06 ,  C08F110/06 ,  C08L23/04 ,  C08L23/083 ,  C08L23/10 ,  C08L23/12 ,  C08L23/145 ,  C08L23/16 ,  C08L91/00 ,  C08L2205/03 ,  C08L2205/22 ,  C08L2308/00 ,  C08L2312/00 ,  C08L2666/02 ,  C08L2666/06 ,  C08L2666/04 ,  C08F2/001 ,  C08F210/18 ,  C08F236/20 ,  C08F2500/20

Abstract: A homogeneous polymer blend comprises a thermoplastic first polymer having a crystallinity of at least 30%; and a second polymer having a crystallinity of more than 5% and being at least partially cross-linked.

公开(公告)号：US20050245698A1

公开(公告)日：2005-11-03

申请号：US10835337

申请日：2004-04-29

Applicant: Robert Li ,  Kevin Lawson ,  Aspy Mehta ,  Prasadarao Meka

Inventor： Robert Li ,  Kevin Lawson ,  Aspy Mehta ,  Prasadarao Meka

IPC: C08F110/06 ,  C08F4/44 ,  B01J31/00

CPC classification number: C08F110/06 ,  C08F4/6465 ,  C08F4/6543

Abstract: The present invention provides catalyst systems including a Ziegler-Natta or Ziegler-Natta-type catalyst in combination with a mixture of certain electron donors.

Abstract translation: 本发明提供催化剂体系，其包括与某些电子给体的混合物组合的齐格勒 - 纳塔或齐格勒 - 纳塔型催化剂。

公开(公告)号：US20050032983A1

公开(公告)日：2005-02-10

申请号：US10930477

申请日：2004-08-31

Applicant: Aspy Mehta ,  Michael Chen ,  Chon-Yie Lin ,  James Mcalpin ,  Anthony Speca ,  Kelly Tormaschy

Inventor： Aspy Mehta ,  Michael Chen ,  Chon-Yie Lin ,  James Mcalpin ,  Anthony Speca ,  Kelly Tormaschy

IPC: C08F4/642 ,  C08F10/00 ,  C08F10/06 ,  C08F210/06 ,  C08F210/16 ,  C08F297/08 ,  C08J5/18 ,  C08L23/12 ,  C08L23/14 ,  C08L23/00

CPC classification number: C08J5/18 ,  C08F10/00 ,  C08F10/06 ,  C08F210/06 ,  C08F210/16 ,  C08F297/08 ,  C08J2323/10 ,  C08J2323/12 ,  C08L23/12 ,  C08L23/14 ,  C08L23/142 ,  C08L2205/02 ,  C08L2308/00 ,  C08L2314/02 ,  C08L2314/06 ,  Y10T428/24942 ,  C08F2/001 ,  C08L2666/06 ,  C08F2500/12 ,  C08F4/65904 ,  C08L2666/04 ,  C08F2500/15 ,  C08F2500/05 ,  C08F2500/03 ,  C08F2500/01 ,  C08F2500/26

Abstract: This invention relates generally to films made from crystalline polypropylene polymers. Specifically, this invention relates to films comprising crystalline polypropylene polymer compositions containing both propylene homopolymers and propylene copolymers. The compositions are prepared using metallocene catalyst systems comprising at least two metallocenes in a polymerization process that involves the sequential or parallel polymerization of propylene homopolymers and copolymers using propylene with a small amount of comonomer, preferably ethylene. The resulting polymers are excellent for use in the production of biaxially oriented films. Films prepared with these propylene polymers have a significantly broader processability range and can be evenly stretched at lower temperature compared to films prepared from traditional polypropylene polymers.

Abstract translation: 本发明一般涉及由结晶聚丙烯聚合物制成的薄膜。 具体地，本发明涉及包含含有丙烯均聚物和丙烯共聚物的结晶聚丙烯聚合物组合物的薄膜。 在聚合过程中使用包含至少两种金属茂的茂金属催化剂体系来制备组合物，该方法涉及使用丙烯与少量共聚单体，优选乙烯的丙烯均聚物和共聚物的顺序或平行聚合。 得到的聚合物非常适用于生产双轴取向膜。 用这些丙烯聚合物制备的膜具有显着更宽的加工性能范围，与传统聚丙烯聚合物制备的膜相比，可以在较低温度下均匀地拉伸。