OLEFIN POLYMERS AND PRODUCTION PROCESSES THEREOF

Title:

OLEFIN POLYMERS AND PRODUCTION PROCESSES THEREOF

Document Type and Number:

WIPO Patent Application WO/2001/055231

Kind Code:

A1

Abstract:

The invention provides an olefin polymer having a narrow molecular weight distribution and a molecular weight falling in a specified range; an olefin polymer having functional groups at the ends;a tapered polymer whose polymer chain contains a segment wherein the monomer composition varies continuously; an olefin polymer comprising different segments in a combined state; and processes for the production of these polymers. Specifically, a polymer of a C¿2-20? olefin having a number-average molecular weight of 500 orabove and an Mw/Mn ratio of 1.5 or below; and a process for the production of olefin polymers by polymerizing a C¿2-20? olefin in the presence of a polymerization catalyst for olefins containing a transition metal compound represented by general formula (I): L¿m?MX¿n? wherein M is any of Group 3 to 11 transition metal elements of the periodic table; m is 1 to 5; n is a number satisfying the valency of M; L is a ligand coordinated to the central metal M,which has a heteroatom not bonded directly to the central metal; and X is halogeno, a hydrocarbon group, or the like.

Inventors:

MITANI MAKOTO (JP)
YOSHIDA YASUNORI (JP)
MOHRI JUNICHI (JP)
TSURU KAZUTAKA (JP)
ISHII SEIICHI (JP)
KOJOH SHINICHI (JP)
MATSUGI TOMOAKI (JP)
SAITO JUNJI (JP)
MATSUKAWA NAOTO (JP)
MATSUI SHIGEKAZU (JP)
NAKANO TAKASHI (JP)
TANAKA HIDETSUGU (JP)
KASHIWA NORIO (JP)
FUJITA TERUNORI (JP)

Application Number:

PCT/JP2001/000522

Publication Date:

August 02, 2001

Filing Date:

January 26, 2001

Export Citation:

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Assignee:

MITSUI CHEMICALS INC (JP)
MITANI MAKOTO (JP)
YOSHIDA YASUNORI (JP)
MOHRI JUNICHI (JP)
TSURU KAZUTAKA (JP)
ISHII SEIICHI (JP)
KOJOH SHINICHI (JP)
MATSUGI TOMOAKI (JP)
SAITO JUNJI (JP)
MATSUKAWA NAOTO (JP)
MATSUI SHIGEKAZU (JP)
NAKANO TAKASHI (JP)
TANAKA HIDETSUGU (JP)
KASHIWA NORIO (JP)
FUJITA TERUNORI (JP)

International Classes:

C08F4/60; C08F10/00; C08F210/16; C08F297/08; C08L53/00; C08F4/659; C08F110/02; (IPC1-7): C08F10/00; C08F4/60; C08F8/00; C08F210/16; C08F297/06

Domestic Patent References:

WO1991012285A1	1991-08-22
WO1994021700A1	1994-09-29
WO1994021700A1	1994-09-29

Foreign References:

JP2000119316A	2000-04-25
EP0874005A1	1998-10-28
EP0206753A1	1986-12-30
EP0603852A1	1994-06-29
JPS50139890A	1975-11-08
EP0188915A2	1986-07-30
EP0188915A2	1986-07-30
EP0874005A1	1998-10-28

Other References: