Title:
CRYSTALLINE POLYPROPYLENE AND MOLDED OBJECT AND FILM THEREOF
Document Type and Number:
WIPO Patent Application WO/1999/061493
Kind Code:
A1
Abstract:
A crystalline polypropylene satisfying the following relationship of formula (1) $g(a)$m(F)-0.42xln(Mp)+7.3 (wherein $g(a) is the 0 °C soluble content (wt.%) as determined by the temperature-rising fractionation method and Mp is the molecular weight corresponding to the peak of a molecular weight distribution curve determined by GPC) and satisfying the following relationship of formula (2) Tm$m(g)1.85xln(Mp)+144.5 (wherein Tm is the melting point (°C) as determined with a differential scanning calorimeter and Mp is the same as the above); and a molding and a film both obtained by molding the crystalline polypropylene. The crystalline polypropylene is excellent in rigidity, heat resistance, and marring resistance.
Inventors:
KURAMOTO ITARU (JP)
OBATA YUTAKA (JP)
OTA TSUYOSHI (JP)
ISOZAKI TOSHIO (JP)
OBATA YUTAKA (JP)
OTA TSUYOSHI (JP)
ISOZAKI TOSHIO (JP)
Application Number:
PCT/JP1999/002688
Publication Date:
December 02, 1999
Filing Date:
May 21, 1999
Export Citation:
Assignee:
IDEMITSU PETROCHEMICAL CO (JP)
KURAMOTO ITARU (JP)
OBATA YUTAKA (JP)
OTA TSUYOSHI (JP)
ISOZAKI TOSHIO (JP)
KURAMOTO ITARU (JP)
OBATA YUTAKA (JP)
OTA TSUYOSHI (JP)
ISOZAKI TOSHIO (JP)
International Classes:
C08F4/654; C08F4/658; C08J5/00; C08F10/06; C08F110/06; C08J5/18; (IPC1-7): C08F10/06; C08F4/658
Foreign References:
| JPH06184230A | 1994-07-05 | |||
| JPH06145242A | 1994-05-24 | |||
| JPH02502734A | 1990-08-30 |
Attorney, Agent or Firm:
Tohei, Masamichi (Ltd. 24-4, Anesakikaigan Ichihara-shi Chiba, JP)
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