ETHYLENE-BASED POLYMER HAVING EXCELLENT LONG-TERM PRESSURE RESISTANCE CHARACTERISTICS, AND PIPE USING SAME

Title:

ETHYLENE-BASED POLYMER HAVING EXCELLENT LONG-TERM PRESSURE RESISTANCE CHARACTERISTICS, AND PIPE USING SAME

Document Type and Number:

WIPO Patent Application WO/2019/117443

Kind Code:

A1

Abstract:

The present invention relates to an ethylene-based polymer having excellent long-term pressure resistance characteristics, and a pipe using the same and, more specifically, to: an ethylene-based polymer satisfying the balance between excellent mechanical properties and excellent moldability better than a conventional ethylene-based polymer; and a pipe using the same. The present invention relates to: an ethylene-based polymer having a wide molecular weight distribution, and having long-chain branches so as to have a thin lamellar thickness, thereby having excellent long-term pressure resistance characteristics due to an increase in tie molecules; and a pipe using the same.

Inventors:

JOUNG UI GAB (KR)
PARK HYE RAN (KR)
LIM SEONG JAE (KR)
LIM YU JEONG (KR)
JEONG TAE UK (KR)
KU IL HWAE (KR)
KIM DONG OK (KR)
JEONG DONG WOOK (KR)

Application Number:

PCT/KR2018/011985

Publication Date:

June 20, 2019

Filing Date:

October 11, 2018

Export Citation:

Click for automatic bibliography generation Help

Assignee:

HANWHA CHEMICAL CORP (KR)

International Classes:

C08F210/16; C08F2/38; C08F4/642; C08F4/646; C08F4/659; C08F4/6592; C08L23/08; F16L9/12

Domestic Patent References:

WO2017181424A1	2017-10-26
WO2017188569A1	2017-11-02

Foreign References:

KR101773722B1	2017-08-31
KR20140120378A	2014-10-13
KR20080050428A	2008-06-05
KR20160122065A	2016-10-21
KR101723774B1	2017-04-18
KR101692346B1	2017-01-03
US6525150B1	2003-02-25
US20190127501A1	2019-05-02
KR101773722B1	2017-08-31
EP3450469A1	2019-03-06
EP3653653A1	2020-05-20
KR20190071187A	2019-06-24

Other References: