Title:
PROPYLENE POLYMER
Document Type and Number:
Japanese Patent JP2006124453
Kind Code:
A
Abstract:
To provide a polypropylene polymer containing little ethylene chain component generating in the polypropylene block copolymerization stage and causing the deterioration of physical properties.
The propylene copolymer is composed of a part (PXsol) soluble in p-xylene at room temperature and a part (PXinsol) insoluble in p-xylene at normal temperature. The GPC molecular weight distributions (Mw/Mn) of both PXsol and PXinsol are ≤4.0, the triad chain distribution EEE of the p-xylene-soluble part (PXsol) determined by 13C-NMR is ≤0.1, the diad chain distribution EE of the p-xylene-soluble part (PXsol) determined by 13C-NMR is ≤0.2, PXsol/(PXsol+PXinsol)×100 is ≥5%, and the intrinsic viscosity ([η](dl/g)) of PXsol is ≥1.5.
Inventors:
MATSUMURA HIDEJI
HASHIZUME SATOSHI
SASAKI YOSHIO
HASHIZUME SATOSHI
SASAKI YOSHIO
Application Number:
JP2004311976A
Publication Date:
May 18, 2006
Filing Date:
October 27, 2004
Export Citation:
Assignee:
MITSUI CHEMICALS INC
International Classes:
C08F210/06
Previous Patent: JP2006124452
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