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Title:
THERMOPLASTIC ELASTOMER COMPOSITION AND METHOD FOR PRODUCING SAME
Document Type and Number:
WIPO Patent Application WO/2013/061974
Kind Code:
A1
Abstract:
The present invention relates to a thermoplastic elastomer composition comprising a branched-structure olefin-based copolymer including an ethylene/α-olefin copolymer main chain and a side chain derived from a crystalline propylene polymer containing a vinyl group at one terminus, wherein the main chain contains the α-olefin in an amount of 70 mol% or less, and the composition exhibits an elongation at rupture of not less than 500% and exhibits an elastic recovery of not less than 70% upon recovery from 300% elongation; the present invention also relates to a method for producing the same.

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Inventors:
OHTAKI HISASHI
SHIMIZU FUMIHIKO
COATES GEOFFREY W
FREDRICKSON GLENN H
Application Number:
PCT/JP2012/077375
Publication Date:
May 02, 2013
Filing Date:
October 23, 2012
Export Citation:
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Assignee:
MITSUBISHI CHEM CORP (JP)
UNIV CORNELL (US)
OHTAKI HISASHI
SHIMIZU FUMIHIKO
COATES GEOFFREY W
FREDRICKSON GLENN H
International Classes:
C08F255/00; C08F4/64
Domestic Patent References:
WO2008059969A12008-05-22
WO2003025025A12003-03-27
WO2008112133A22008-09-18
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WO2002038628A22002-05-16
WO2002002577A12002-01-10
WO2004002259A22004-01-08
WO2008112133A22008-09-18
Foreign References:
JP2011525212A2011-09-15
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Other References:
PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCE, vol. 103, no. 42, 2006, pages 15327
GAYNOR, S. G, MACROMOLECULES, vol. 36, 2003, pages 4692 - 4698
BROOKHART, M. ET AL., MACROMOLECULES, vol. 32, 1999, pages 2120
RESCONI, L. ET AL., J. AM. CHEM. SOC., vol. 114, 1992, pages 1025
KAMINSKY, W. ET AL., MACROMOL. CHEM. PHYS., 2010
CHERIAN, A. E. ET AL., MACROMOLECULES, vol. 38, 2005, pages 6268
EXPERIMENTAL SECTION OF PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES, vol. 103, no. 42, 2006, pages 15327
MACROMOLECULES, vol. 41, 2008, pages 9548 - 9555
See also references of EP 2772503A4
Attorney, Agent or Firm:
HAMADA Yuriko et al. (JP)
Yuriko Hamada (JP)
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