Resonac Corporation

Sunallomer Ltd.

Basell Poliolefine Italia S.r.l.

Akihiro Kamimura

Yutaka Yokoyama

Takeshi Nakajima

Hiroshi Kajioka

Akihiro Otsubo

Shintaro Takemiya

Shuji Akinaga

Hiroshi Kawaharada

A polypropylene-based resin composition contains: The resin composition has a content of the component (A1) of 0.1 to 10 wt % and a content of the component (A2) of 99.9 to 90 wt % based on the total amount of the component (A1) and the component (A2). The component (A2) has a melt flow rate (MFR) (230° C., load: 2.16 kg) of 1 to 500 g/10 min.

Polypropylene-based resin composition containing ultrahigh molecular weight propylene (co)polymer

Provided is a propylene homopolymer or a copolymer of propylene and a 30 wt % or less &#x3b1;-olefin having 2 or 4 to 8 carbon atoms, having a intrinsic viscosity of more than 20 dl/g, as measured in a tetralin solvent at 135&#xb0; C.

Ultrahigh molecular weight propylene (co)polymer

A polypropylene composition made from or containing a polymer made from or containing: (i) component (1) made from or containing a propylene homopolymer having MFR of 100 to 300 (at a temperature of 230&#xb0; C. under a load of 2.16 k(g) and containing more than 97.5% by weight of xylene insolubles (XI), wherein XI has a Mw/Mn of 4 to 10; (ii) component (2) made from or containing an ethylene/propylene copolymer containing 15 to 50% by weight of an ethylene-derived unit; wherein 1) relative proportions of component (1) and component (2) are, respectively, not less than 50 parts by weight but less than 70 pbw and more than 30 pbw but not more than 50 pbw, 2) intrinsic viscosity of xylene solubles (XSIV) of the polymer is in the range of 1.5 to 4.0 dl/g, 3) MFR of the polymer is in the range of 20 to 100 g/10 min.

Polypropylene composition and molded article

The purpose of the present invention is to produce an alpha-olefin polymer having excellent production stability utilizing a long-lasting high catalytic activity. Provided is a method for producing an alpha-olefin polymer using a catalyst comprising:

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Kanagawa, Japan

Akihiro Kamimura