Title:
HEAT SHRINK FILM FROM POLYMER COMPOSITION
Document Type and Number:
WIPO Patent Application WO/2005/059026
Kind Code:
A1
Abstract:
A heat shrink film comprising copolymer and/or hydrogenation product thereof (I) and styrene polymer with syndiotactic structure (II) used in a weight ratio of component (I) to component (II) of 99.9/0.1 to 20/80, the copolymer and/or hydrogenation product thereof (I) having incorporated therein at least one vinyl aromatic hydrocarbon polymer block which has vinyl aromatic hydrocarbon units and conjugated diene units in a weight ratio of 60/40 to 95/5, having a number average molecular weight, measured by gel permeation chromatography (GPC), of 3 × 104 to 80 × 104, and which exhibits a block ratio of vinyl aromatic hydrocarbon unit of 10 to 95 wt.%, having a peak molecular weight in the molecular weight range of 5000 to 30,000, provided that 40 to 95 wt.% of the vinyl aromatic hydrocarbon polymer block has a molecular weight of 35,000 or less.
Inventors:
MOURI MASAHIRO (JP)
HOSHI SUSUMU (JP)
HOSHI SUSUMU (JP)
Application Number:
PCT/JP2004/018806
Publication Date:
June 30, 2005
Filing Date:
December 16, 2004
Export Citation:
Assignee:
ASAHI KASEI CHEMICALS CORP (JP)
MOURI MASAHIRO (JP)
HOSHI SUSUMU (JP)
MOURI MASAHIRO (JP)
HOSHI SUSUMU (JP)
International Classes:
B29C61/06; C08L25/06; C08L53/02; (IPC1-7): C08L25/04; B29C61/02; B32B27/30; C08J5/18; C08L25/04; C08L25/10; C08L53/02
Foreign References:
| JP2001220489A | 2001-08-14 | |||
| JPH11172062A | 1999-06-29 | |||
| JPH09104795A | 1997-04-22 | |||
| JPH08151492A | 1996-06-11 | |||
| JPH0762176A | 1995-03-07 |
Attorney, Agent or Firm:
Asamura, Kiyoshi (New Ohtemachi Bldg. 2-1, Ohtemachi 2-chome, Chiyoda-k, Tokyo 04, JP)
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