Title:
ブロック共重合体混合物及びそれを用いた熱収縮性フィルム
Document Type and Number:
Japanese Patent JP5210521
Kind Code:
B2
Abstract:
A block copolymer mixture comprising block copolymers (A), (B) and (C) each block comprising vinyl aromatic hydrocarbon and conjugated diene monomer units: wherein block (A) comprises from 75 to 95 mass % of a vinyl aromatic hydrocarbon and from 5 to 25 mass % of a conjugated diene, and which has a block portion composed mainly of a vinyl aromatic hydrocarbon having a number average molecular weight of from 30,000 to less than 150,000: block (B) comprises from 50 to 80 mass % of a vinyl aromatic hydrocarbon and from 20 to 50 mass % of a conjugated diene, and which has a block portion composed mainly of a vinyl aromatic hydrocarbon having a number average molecular weight of from 20,000 to less than 120,000, and block (C) comprises from 60 to 95 mass % of a vinyl aromatic hydrocarbon and from 5 to 40 mass % of a conjugated diene, which has at least one random copolymer block portion comprising, as monomer units, from 55 to 95 mass % of a vinyl aromatic hydrocarbon and from 5 to 45 mass % of a conjugated diene.
Inventors:
Kinya Kurokawa
Hideki Totani
Eiji Sato
Hideki Totani
Eiji Sato
Application Number:
JP2006552963A
Publication Date:
June 12, 2013
Filing Date:
January 12, 2006
Export Citation:
Assignee:
DENKI KAGAKU KOGYO KABUSHIKI KAISHA
International Classes:
C08L53/02; B29C61/06; B65D23/08; C08L25/04
Domestic Patent References:
| JPH07216186A | 1995-08-15 | |||
| JPH09302109A | 1997-11-25 | |||
| JP2003220647A | 2003-08-05 | |||
| JP2003094520A | 2003-04-03 | |||
| JP2003033968A | 2003-02-04 | |||
| JP2000026698A | 2000-01-25 | |||
| JP2004018800A | 2004-01-22 | |||
| JP2003155356A | 2003-05-27 |
Foreign References:
| WO2003091303A1 | 2003-11-06 |
Attorney, Agent or Firm:
Kenji Izumina
Toshiharu Ogawa
Ryozo Yamamoto
Toshiharu Ogawa
Ryozo Yamamoto