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Title:
PROPYLENE POLYMER, COMPOSITION CONTAINING THE POLYMER, AND MOLDED OBJECTS OBTAINED FROM THESE
Document Type and Number:
WIPO Patent Application WO/2006/068308
Kind Code:
A1
Abstract:
A propylene polymer which is constituted of 10-40 wt.% component (Dsol) soluble in room-temperature n-decane and 60-90 wt.% component (Dinsol) insoluble in room-temperature n-decane, comprises skeletons derived from propylene (MP) and one or more olefins (MX) selected among ethylene and C4 and higher &agr -olefins, and satisfies all of the following requirements [1] to [5]. The polymer is characterized by having a high melting point and a high molecular weight. It is suitable for use in producing various moldings therefrom. [1] The molecular weight distributions (Mw/Mn) of Dsol and Dinsol as determined by GPC each is 4.0 or lower. [2] The melting point (Tm) of Dinsol is 156°C or higher. [3] The sum of the 2,1-bond content and the 1,3-bond content in Dinsol is 0.05 mol% or lower. [4] The intrinsic viscosity [&eegr ] (dL/g) of Dsol satisfies the relationship 2.2<[&eegr ]≤6.0. [5] The concentration of skeletons derived from the olefin(s) (MX) in Dinsol is 3.0 wt.% or lower.

Inventors:
ITAKURA KEITA (JP)
FUNAYA MUNEHITO (JP)
KADOSAKA AYAKO (JP)
HIROTA NARITOSHI (JP)
NISHIKAWA HIROSHI (JP)
YAMAMURA YUICHI (JP)
MATSUMURA SHUJI (JP)
HASHIZUME SATOSHI (JP)
SASAKI YOSHIO (JP)
Application Number:
PCT/JP2005/024163
Publication Date:
June 29, 2006
Filing Date:
December 22, 2005
Export Citation:
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Assignee:
MITSUI CHEMICALS INC (JP)
ITAKURA KEITA (JP)
FUNAYA MUNEHITO (JP)
KADOSAKA AYAKO (JP)
HIROTA NARITOSHI (JP)
NISHIKAWA HIROSHI (JP)
YAMAMURA YUICHI (JP)
MATSUMURA SHUJI (JP)
HASHIZUME SATOSHI (JP)
SASAKI YOSHIO (JP)
International Classes:
C08F210/06; C08F297/08; C08L23/10
Domestic Patent References:
WO1999007747A11999-02-18
WO2002074855A12002-09-26
WO2004087775A12004-10-14
Foreign References:
JP2001525801A2001-12-11
JP2003206325A2003-07-22
JPH11349649A1999-12-21
JPH05202152A1993-08-10
Other References:
See also references of EP 1829903A4
Attorney, Agent or Firm:
Suzuki, Shunichiro (Gotanda Yamazaki Bldg. 6F 13-6, Nishigotanda 7-chom, Shinagawa-ku Tokyo 31, JP)
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