Title:
OLEFIN BLOCK COPOLYMER
Document Type and Number:
WIPO Patent Application WO/2012/099443
Kind Code:
A2
Abstract:
The present invention relates to an olefin block copolymer which exhibits superior elasticity, heat resistance, and processability. The olefin block copolymer comprises a plurality of blocks or segments containing an ethylene-based or propylene-based repeating unit and an α-olefin-based repeating unit, wherein the two units have different weight fractions. The value obtained by performing a first derivation of the number Y of short-chain branches (SCB) per 1000 carbon atoms of each of the polymer chains contained in the block copolymer with respect to the molecular weight X of polymer chains is a negative or positive number of -1.5 X 10-4 or more. The value obtained by the first derivation is -1.0 X 10-4 to 1.0 X 10-4 in the range of a value equal to or higher than the median value of the molecular weight X.
Inventors:
NOH KYUNG-SEOP (KR)
KIM WON-HEE (KR)
LEE NAN-YOUNG (KR)
JEON SANG-JIN (KR)
AN SANG-EUN (KR)
KIM WON-HEE (KR)
LEE NAN-YOUNG (KR)
JEON SANG-JIN (KR)
AN SANG-EUN (KR)
Application Number:
PCT/KR2012/000564
Publication Date:
July 26, 2012
Filing Date:
January 20, 2012
Export Citation:
Assignee:
LG CHEMICAL LTD (KR)
NOH KYUNG-SEOP (KR)
KIM WON-HEE (KR)
LEE NAN-YOUNG (KR)
JEON SANG-JIN (KR)
AN SANG-EUN (KR)
NOH KYUNG-SEOP (KR)
KIM WON-HEE (KR)
LEE NAN-YOUNG (KR)
JEON SANG-JIN (KR)
AN SANG-EUN (KR)
International Classes:
C08F297/08; C08F210/16; C08L23/16; C08L53/00
Domestic Patent References:
| WO2011010891A2 | 2011-01-27 | |||
| WO2010039628A2 | 2010-04-08 |
Foreign References:
| KR100820542B1 | 2008-04-08 |
Other References:
See also references of EP 2666799A4
Attorney, Agent or Firm:
YOU ME PATENT AND LAW FIRM (649-10 Yoksam-dongKangnam-ku, Seoul 135-080, KR)
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Claims: