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Title:
ETHYLENE-BASED COPOLYMER, COMPOSITION CONTAINING THE COPOLYMER, AND MOLDED ARTICLE AND FILM OR SHEET FORMED OF THE COPOLYMER OR THE COMPOSITION
Document Type and Number:
WIPO Patent Application WO/2013/054882
Kind Code:
A1
Abstract:
The present invention relates to a method for producing an ethylene-based copolymer which maintains a high level of rubber elasticity even in non-cross linking and a high level of molding workability even in a substantial high-fill mixture, and a method for producing a film or a sheet of flexibility and high extensibility with high productivity. An ethylene-based copolymer (X) of the present invention comprises a structural unit which is derived from the ethylene-based copolymer (X) which comprises a structural unit which is derived from a component [A], a component [B], and a component [C], each being an ethylene [A], an alpha olefin having a number of carbon atoms of from 3 to 20 [B], and a polyene and/or a cyclic olefin [C]. According to the ethylene-based copolymer and a composition and an application containing the ethylene-based copolymer (X), (1) the structural unit derived from the ethylene [A] is within a range of between 50 mole percent and 90 mole percent in an entire structural unit of 100 mole percent of the copolymer (X), (2) the structural unit derived from the at least one polyene and/or cyclic olefin [C] is within a range of between 1.0 mole percent and 5.0 mole percent in the entire structural unit of 100 mole percent of the copolymer (X), and (3) a limiting viscosity [η] measured in a decalin solution of the ethylene-based copolymer (X) with a temperature of 135°C is within a range of between 7.8 dl/g and 13.0 dl/g.

Inventors:
EBATA HIROKI (JP)
KIKUCHI YOSHIHARU (JP)
ISHII YUJI (JP)
MATSUO YOSHIHISA (JP)
Application Number:
PCT/JP2012/076442
Publication Date:
April 18, 2013
Filing Date:
October 12, 2012
Export Citation:
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Assignee:
MITSUI CHEMICALS INC (JP)
International Classes:
C08F210/18; C08L23/16
Domestic Patent References:
WO2009081794A12009-07-02
WO2009081792A12009-07-02
WO2006123759A12006-11-23
WO2001027124A12001-04-19
WO1998049212A11998-11-05
Foreign References:
JP2007099942A2007-04-19
JP2006348095A2006-12-28
JPH06248093A1994-09-06
JP2001294713A2001-10-23
JPH06128330A1994-05-10
JPH061893A1994-01-11
JPH09151283A1997-06-10
JPH0867778A1996-03-12
JPS53119946A1978-10-19
JP2001172448A2001-06-26
JPH08319382A1996-12-03
JPH03501497A1991-04-04
JP2004168744A2004-06-17
JP2004175759A2004-06-24
JP2000212194A2000-08-02
JP2001522398A2001-11-13
JPH0278687A1990-03-19
Other References:
See also references of EP 2767551A4
J. C. RANDALL, MACROMOLECULES, vol. 15, 1982, pages 353
J. RAY, MACROMOLECULES, vol. 10, 1977, pages 773
J. ORGANOMET. CHEM., vol. 63, 1996, pages 509
Attorney, Agent or Firm:
SSINPAT PATENT FIRM (JP)
Patent business corporation SSINPAT (JP)
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