Title:
COPOLYMER OF ETHYLENE AND ALPHA-OLEFIN, AND METHOD FOR PREPARING SAME
Document Type and Number:
WIPO Patent Application WO/2014/077617
Kind Code:
A1
Abstract:
The present invention discloses a liquid random copolymer of ethylene and alpha-olefin, and a method for preparing same, wherein said copolymer is useful as a synthetic lubricating oil having high viscosity index and shear stability using a specific metallocene catalyst and an ionic compound. The liquid random copolymer of ethylene and alpha-olefin (1) consists of 40 to 60 mol% of ethylene unit and 60 to 40 mol% of alpha-olefin unit having the number of carbon atoms of 3 to 20, (2) has a number-average molecular weight (Mn) 500 to 10,000 measured by a gel-permeation chromatography (GPC) and the distribution of molecular weight (Mw/Mn, wherein Mw is weight-average molecular weight) is 3 or less, (3) has kinematic viscosity 30 to 5,000 at 100 ̊C, (4) has pour point 30 to -45 ̊C, and (5) has a bromine number 0.1 or less.
Inventors:
UHM JAE HOON (KR)
MUN SANG-DEOK (KR)
JU JIN-HUN (KR)
BAE HEE-SUN (KR)
HONG SAH-MUN (KR)
SOHN BYUNG-KEEL (KR)
MUN SANG-DEOK (KR)
JU JIN-HUN (KR)
BAE HEE-SUN (KR)
HONG SAH-MUN (KR)
SOHN BYUNG-KEEL (KR)
Application Number:
PCT/KR2013/010392
Publication Date:
May 22, 2014
Filing Date:
November 15, 2013
Export Citation:
Assignee:
DAELIM IND CO LTD (KR)
International Classes:
C08F210/16; C08F4/6592
Foreign References:
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Other References:
LECLERC; WAYMOUTH, ANGEW. CHEM. INT. ED., vol. 37, no. 7, 1998, pages 922 - 925
TOSOH RESEARCH & TECHNOLOGY REVIEW, vol. 47, no. 55, 2003
See also references of EP 2921509A4
TOSOH RESEARCH & TECHNOLOGY REVIEW, vol. 47, no. 55, 2003
See also references of EP 2921509A4
Attorney, Agent or Firm:
SHINWOO PATENT & LAW FIRM (KR)
특허법인 신우 (KR)
특허법인 신우 (KR)
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