PROPYLENE POLYMER - MITSUBISHI CHEM CORP

Title:

PROPYLENE POLYMER

Document Type and Number:

WIPO Patent Application WO/2003/018647

Kind Code:

A1

Abstract:

A novel propylene polymer capable of imparting satisfactory suitability for bonding and coating to a propylene polymer. It is a propylene copolymer having propylene satisfying the following requirements (1) to (3): the weight−average molecular weight Mw as measured by GPC is 5,000 to 1,000,000, excluding 1,000,000&semi when the peak attributable to the carbon atoms of the methyl groups in propylene unit segments formed through head−to−tail bonding is examined by ¹³C−NMR and the chemical shift of the top of the peak attributable to pentads represented by mmmm is located at 21.8 ppm, then the proportion of the area S₅ of the peak whose top is located at 21.8 ppm to the total area S of the peaks appearing between 19.8 ppm and 22.2 ppm is 10 to 60% and there is the relationship 4&plus 2S₅&sol S₆>5, wherein S₆ is the area of the peak whose top is located at 21.5 to 21.6 ppm&semi and irregularly positioned propylene monomer units resulting from 2,1− and&sol or 1,3−insertion are present in the main chain and the proportion of the irregularly positioned propylene monomer units resulting from 2,1− and 1,3−insertion to all propylene units inserted is 0.05% or higher.

Inventors:

SHIMIZU FUMIHIKO (JP)
SATOU NAOMASA (JP)
KUWAHARA AKIRA (JP)
YAMADA FUMIYOSHI (JP)
TANNA AKIO (JP)

Application Number:

PCT/JP2002/008530

Publication Date:

March 06, 2003

Filing Date:

August 23, 2002

Export Citation:

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Assignee:

MITSUBISHI CHEM CORP (JP)
SHIMIZU FUMIHIKO (JP)
SATOU NAOMASA (JP)
KUWAHARA AKIRA (JP)
YAMADA FUMIYOSHI (JP)
TANNA AKIO (JP)

International Classes:

C08F4/64; C08F10/06; C08F110/06; C08F283/02; C08F4/659; C08F210/06; (IPC1-7): C08F10/06; C08F4/64

Foreign References:

EP0963996A2	1999-12-15
JPH11106392A	1999-04-20
JPH07188318A	1995-07-25
JPH10273507A	1998-10-13

Other References: