公开(公告)号：US20170166734A1

公开(公告)日：2017-06-15

申请号：US15325350

申请日：2015-06-23

Applicant: SABIC GLOBAL TECHNOLOGIES B.V.

Inventor： Priya Garg ,  Eric Johannes Cornelia Janssen ,  Gerrit-Jan Bekink

IPC: C08L23/08 ,  F16L9/147 ,  C09D123/08

CPC classification number: C08L23/0815 ,  C08F210/16 ,  C08L2203/18 ,  C08L2205/02 ,  C08L2205/025 ,  C09D123/0815 ,  F16L9/12 ,  F16L9/147 ,  F16L57/02 ,  F16L58/10 ,  C08F2/001 ,  C08F210/08 ,  C08F2500/05 ,  C08F2500/07 ,  C08F2500/12 ,  C08F2500/17 ,  C08F4/6555

Abstract: The invention is directed to polyethylene having a multimodal molar mass distribution, having a density in the range from 940 to 948 kg/m3, having an MFI 190/5 in the range from 1.0 to 3.5 g/10 min and comprising from 45 to 47% by weight of an ethylene copolymer A and from 53 to 55% by weight of an ethylene copolymer B, where all percentages are based on the total weight of the composition wherein ethylene-1-butene copolymer A has a viscosity number in the range between 70 and 110 cm3/g and a density between 960 and 973 kg/m3. The polyethylene is suitable to be applied in pipe coating applications.