WRAPPING FILM AND SHRINK FILM EACH COMPRISING BUTENE POLYMER

Title:

WRAPPING FILM AND SHRINK FILM EACH COMPRISING BUTENE POLYMER

Document Type and Number:

WIPO Patent Application WO/2003/027179

Kind Code:

A1

Abstract:

A wrapping film and shrink film which are formed from a resin composition comprising a 1−butene polymer satisfying the following requirements (1) to (4) and an olefin polymer. It is a crystalline resin having a melting point (Tm−D) as measured with a differential scanning calorimeter (DSC) of 0 to 100°C (provided that this 'melting point' is defined as the peak top of the peak observed on the highest−temperature side in a melting endothermic curve obtained by holding a sample in a nitrogen atmosphere at −10°C for 5 minutes and then heating it at a rate of 10 °C&sol min). The stereoregularity index &lcub (mmmm)&sol (mmrr&plus rmmr)&rcub is 20 or lower. The molecular weight distribution (Mw&sol Mn) as determined by gel permeation chromatography (GPC) is 4.0 or lower. The weight−average molecular weight (Mw) as determined by GPC is 10,000 to 1,000,000.

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Inventors:

SERA MASANORI (JP)
MINAMI YUTAKA (JP)
KANAMARU MASAMI (JP)

Application Number:

PCT/JP2002/009500

Publication Date:

April 03, 2003

Filing Date:

September 17, 2002

Export Citation:

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Assignee:

IDEMITSU PETROCHEMICAL CO (JP)
SERA MASANORI (JP)
MINAMI YUTAKA (JP)
KANAMARU MASAMI (JP)

International Classes:

B32B27/32; C08F4/642; C08F10/08; C08J5/18; C08L23/02; C08L23/10; C08L23/20; C08F110/08; C08F210/08; (IPC1-7): C08L23/20; B32B27/32; C08F4/642; C08J5/18; C08L23/00

Foreign References:

JPH06136149A	1994-05-17
JPH06122182A	1994-05-06
JPH1143564A	1999-02-16
EP0573172A1	1993-12-08
JP2000063597A	2000-02-29
JPH10272747A	1998-10-13
EP0621310A1	1994-10-26
JPH0679838A	1994-03-22
JPH05104624A	1993-04-27
JPH08225605A	1996-09-03

Other References: