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Title:
COMPOSITION FOR STRETCHABLE FILM
Document Type and Number:
WIPO Patent Application WO/2010/113882
Kind Code:
A1
Abstract:
A composition for stretchable films which combines a high modulus and a low elongation set on a high level and can be satisfactorily formed into a stretchable film. The composition for stretchable films comprises: a block copolymer composition comprising a block copolymer (A) represented by general formula (A) and a block copolymer (B) represented by general formula (B); and a tackifier resin. Ar1a-Da-Ar2a (A) (Arb-Db)n-X (B) (In general formulae (A) and (B), Ar1a and Arb each is an aromatic-vinyl polymer block having a weight-average molecular weight of 6,000-20,000; Ar2a is an aromatic-vinyl polymer block having a weight-average molecular weight of 40,000-400,000; Da and Db each is a conjugated-diene polymer block having a vinyl bond content of 1-20 mol%; X is a single bond or a residue of a coupling agent; and n is an integer of 2 or larger.)

Inventors:
OOISHI TAKESHI (JP)
SAKURAI TAKUROU (JP)
Application Number:
PCT/JP2010/055580
Publication Date:
October 07, 2010
Filing Date:
March 29, 2010
Export Citation:
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Assignee:
ZEON CORP (JP)
OOISHI TAKESHI (JP)
SAKURAI TAKUROU (JP)
International Classes:
C08L53/02; C08J5/18
Foreign References:
JP2006282683A2006-10-19
JPH0978048A1997-03-25
JP2008533230A2008-08-21
JP2002060583A2002-02-26
JP2006528273A2006-12-14
JP2008007654A2008-01-17
JP2007230180A2007-09-13
Other References:
See also references of EP 2415836A4
RUBBER CHEM. TECHNOL., vol. 45, 1972, pages 1295
RUBBER CHEM.TECHNOL., vol. 45, 1972, pages 1295
Attorney, Agent or Firm:
YAMASHITA, Akihiko et al. (JP)
Akihiko Yamashita (JP)
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