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Title:
BLOCK COPOLYMER COMPOSITION FOR ADHESIVES, AND ADHESIVE COMPOSITION
Document Type and Number:
WIPO Patent Application WO/2014/017380
Kind Code:
A1
Abstract:
The purpose of the present invention is to provide a block copolymer composition for adhesives, which forms an adhesive composition that has an excellent balance among adhesive characteristics such as adhesive force and adhesive properties, while having low melt viscosity and excellent solubility, coatability, ejection stability and surface skin. A block copolymer composition for adhesives, which contains component (a) in an amount of from 50% by mass to 90% by mass (inclusive) and component (b) in an amount of from 10% by mass to 50% by mass (inclusive), with the content of a vinyl aromatic monomer unit being 25-50% by mass. This block copolymer composition for adhesives has a viscosity of 10-40 mPa·s as measured in a toluene solution of 15% by mass, and the number average molecular weight ratio of the component (b) to the component (a) is 2.0-4.0.

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Inventors:
NAKAJIMA SHIGEO (JP)
HISASUE TAKAHIRO (JP)
EBARA KENJI (JP)
NAKAMICHI YUKINORI (JP)
Application Number:
PCT/JP2013/069551
Publication Date:
January 30, 2014
Filing Date:
July 18, 2013
Export Citation:
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Assignee:
ASAHI KASEI CHEMICALS CORP (JP)
JAPAN ELASTOMER CO LTD (JP)
International Classes:
C08F257/02; C09J153/02
Foreign References:
JPH0593176A1993-04-16
JPH05171003A1993-07-09
JPH021788A1990-01-08
JP2010001371A2010-01-07
JP2000282006A2000-10-10
JPS4417037B1
JPS5649958B21981-11-26
JPS61278578A1986-12-09
JPS61261310A1986-11-19
JPH0569874B21993-10-01
JP2000309767A2000-11-07
JP2004137297A2004-05-13
JPS3619286B11961-10-13
JPS4317979B1
JPS4632415B1
JPS4936975B11974-10-04
JPS482423B1
JPS484106B1
JPS5628925B21981-07-04
JPS59166518A1984-09-19
JPS60186577A1985-09-24
Other References:
I. ISHII: "Quality design of SIS-based adhesive", ADHESION AND POLYMER PUBLICATION SOCIETY, vol. 32, no. 1, 25 January 1988 (1988-01-25), pages 27 - 28
Attorney, Agent or Firm:
INABA, Yoshiyuki et al. (JP)
Yoshiyuki Inaba (JP)
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