FLEXIBLE POLYPROPYLENE RESIN, PROPYLENE ELASTOMER COMPOSITION, AND PRODUCTION OF OLEFIN POLYMER

Title:

FLEXIBLE POLYPROPYLENE RESIN, PROPYLENE ELASTOMER COMPOSITION, AND PRODUCTION OF OLEFIN POLYMER

Document Type and Number:

WIPO Patent Application WO/1991/008259

Kind Code:

A1

Abstract:

A flexible polypropylene resin suitable as thermoplastic elastomer, etc.; a propylene elastomer composition comprising said resin; and a process for producing an olefin polymer to be used in the production of said resin and said composition. Said polypropylene resin is composed of specified boiling heptane-soluble polypropylene and boiling heptane-insoluble polypropylene. Said elastomer composition is composed of said polypropylene resin and an ethylene/propylene copolymer or an ethylene/propylene/polyene copolymer. Said production process comprises conducting solvent-less polymerization such as vapor-phase one-step or multistep polymerization in the presence of a specified catalyst.

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Inventors:

TSURUOKA MASAYUKI (JP)
ONISHI RIKUO (JP)
KUSUYAMA HIDEO (JP)
SUGAHARA AKINOBU (JP)

Application Number:

PCT/JP1990/001216

Publication Date:

June 13, 1991

Filing Date:

September 21, 1990

Export Citation:

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Assignee:

IDEMITSU PETROCHEMICAL CO (JP)

International Classes:

C08F4/649; C08F4/654; C08F10/00; C08F10/06; C08F297/08; C08L23/10; C08L23/12; C08L23/16; C08F110/06; C08F210/06; C08F210/16; (IPC1-7): C07F297/08; C08F4/654; C08F4/658; C08F10/06; C08F210/16; C08L23/10; C08L23/16

Foreign References:

JPS63243107A	1988-10-11
JPS63243106A	1988-10-11
JPS59122506A	1984-07-16
JPS61179247A	1986-08-11
JPH04222528B

Other References: