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Title:
BLOCK COPOLYMER MIXTURE AND HEAT SHRINKABLE FILM USING SAME
Document Type and Number:
WIPO Patent Application WO/2006/075665
Kind Code:
A1
Abstract:
Disclosed is a block copolymer mixture composed of the following block copolymers (A), (B) and (C) respectively containing a vinyl aromatic hydrocarbon and a conjugated diene as components. This block copolymer mixture contains 20-60% by mass of the block copolymer (A), 20-70% by mass of the block copolymer (B) and 5-50% by mass of the block copolymer (C). (A): A block copolymer consisting of 75-95% by mass of a vinyl aromatic hydrocarbon and 5-25% by mass of a conjugated diene as the monomer units and having a block portion mainly composed of the vinyl aromatic hydrocarbon at least at one end. (B): A block copolymer consisting of 50-80% by mass of a vinyl aromatic hydrocarbon and 20-50% by mass of a conjugated diene as the monomer units and having a block portion mainly composed of the vinyl aromatic hydrocarbon at least at one end. (C): A block copolymer consisting of 60-95% by mass of a vinyl aromatic hydrocarbon and 5-40% by mass of a conjugated diene as the monomer units and having at least one random copolymer block consisting of 55-95% by mass of the vinyl aromatic hydrocarbon and 5-45% by mass of the conjugated diene.

Inventors:
KUROKAWA YOSHINARI (JP)
TOYA HIDEKI (JP)
SATO EIJI (JP)
Application Number:
PCT/JP2006/300304
Publication Date:
July 20, 2006
Filing Date:
January 12, 2006
Export Citation:
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Assignee:
DENKI KAGAKU KOGYO KK (JP)
KUROKAWA YOSHINARI (JP)
TOYA HIDEKI (JP)
SATO EIJI (JP)
International Classes:
C08L53/02; B29C61/06; B32B27/00; B32B27/30; B65D23/08
Foreign References:
JPH07216186A1995-08-15
JPH09302109A1997-11-25
JP2003220647A2003-08-05
JP2003155356A2003-05-27
JP2003094520A2003-04-03
JP2003033968A2003-02-04
JP2000026698A2000-01-25
Attorney, Agent or Firm:
Senmyo, Kenji (38 Kanda-Higashimatsushitach, Chiyoda-ku Tokyo 42, JP)
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