公开(公告)号：US20160083571A1

公开(公告)日：2016-03-24

申请号：US14391318

申请日：2013-04-02

Applicant: DOW GLOBAL TECHNOLOGIES LLC

Inventor： Guang Ming Li ,  Colin LiPiShan ,  Kim L. Walton ,  Raymond L. Laakso, JR. ,  Walter J. Brown

IPC: C08L23/14

CPC classification number: C08L23/14 ,  C08L23/142 ,  C08L2205/025 ,  C08L2205/03 ,  C08L23/0815

Abstract: The instant invention provides a polyolefin blend composition, process for producing the same, and articles made therefrom. The polyolefin blend composition according to the present invention comprises: (a) from 75 to 97 percent by weight of one or more random propylene copolymers having a DSC melting point in the range of from 120° C. to 160° C., and a melt flow rate (MFR) in the range of from 1 to 120 g/10 minutes; (b) from 3 to 25 percent by weight of one or more ethylene ?-olefin copolymers having a melt index (I2) in the range of from 100 to 1500 g/10 minutes, a density in the range of 0.860 to 0.910 g/cm3, and a molecular weight (Mw) in the range of from 10,000 to 50,000 g/mole, wherein said ethylene ?-olefin copolymer is homogenously branched copolymer, and wherein said ethylene ?-olefin copolymer is linear or substantially linear; (c) optionally from 5 to 15 percent by weight of one or more propylene ?-olefin interpolymers having a DSC melting point in the range of less than 110° C., a heat of fusion in the range of less than 50 Joules/gram, and a crystallinity in the range of from at least 1 percent by to 40 percent by weight, and a melt flow rate in the range of less than 80 g/10 minutes.

Abstract translation: 本发明提供了一种聚烯烃共混组合物，其制备方法和由其制成的制品。 根据本发明的聚烯烃共混物组合物包含：（a）75至97重量％的一种或多种DSC熔点在120℃至160℃范围内的无规丙烯共聚物，和 熔体流动速率（MFR）在1至120g / 10分钟的范围内; （b）3至25重量％的一种或多种熔体指数（I 2）在100至1500g / 10分钟范围内的乙烯α-烯烃共聚物，密度在0.860至0.910g / cm 3，分子量（Mw）在10,000〜50,000g / mol范围内，其中所述乙烯α-烯烃共聚物是均匀支化的共聚物，并且其中所述乙烯α-烯烃共聚物是线性或基本上线性的; （c）任选的5至15重量％的一种或多种DSC熔点在小于110℃范围内的丙烯α-烯烃互聚物，熔融热在小于50焦耳/克 ，结晶度在至少1重量％至40重量％的范围内，熔体流动速率在小于80克/ 10分钟的范围内。

公开(公告)号：US09982122B2

公开(公告)日：2018-05-29

申请号：US14391318

申请日：2013-04-02

Applicant: DOW GLOBAL TECHNOLOGIES LLC

Inventor： Guang Ming Li ,  Colin LiPiShan ,  Kim L. Walton ,  Raymond L. Laakso, Jr. ,  Walter J. Brown

IPC: C08L23/14

CPC classification number: C08L23/14 ,  C08L23/142 ,  C08L2205/025 ,  C08L2205/03 ,  C08L23/0815

Abstract: The instant invention provides a polyolefin blend composition, process for producing the same, and articles made therefrom. The polyolefin blend composition according to the present invention comprises: (a) from 75 to 97 percent by weight of one or more random propylene copolymers having a DSC melting point in the range of from 120° C. to 160° C., and a melt flow rate (MFR) in the range of from 1 to 120 g/10 minutes; (b) from 3 to 25 percent by weight of one or more ethylene ?-olefin copolymers having a melt index (I2) in the range of from 100 to 1500 g/10 minutes, a density in the range of 0.860 to 0.910 g/cm3, and a molecular weight (Mw) in the range of from 10,000 to 50,000 g/mole, wherein said ethylene ?-olefin copolymer is homogenously branched copolymer, and wherein said ethylene ?-olefin copolymer is linear or substantially linear; (c) optionally from 5 to 15 percent by weight of one or more propylene ?-olefin interpolymers having a DSC melting point in the range of less than 110° C., a heat of fusion in the range of less than 50 Joules/gram, and a crystallinity in the range of from at least 1 percent by to 40 percent by weight, and a melt flow rate in the range of less than 80 g/10 minutes.