Title:
THERMOPLASTIC POLYMER COMPOSITION AND MOLDINGS THEREOF
Document Type and Number:
WIPO Patent Application WO/2011/125796
Kind Code:
A1
Abstract:
Provided is a thermoplastic polymer composition which comprises 100 parts by mass of a block copolymer mixture (a), 0.1 to 100 parts by mass of a polyvinyl acetal (b) that has a degree of acetalization of 55 to 88mol%, and 0.1 to 20 parts by mass of a thermoplastic elastomer (c). The block copolymer mixture (a) comprises: a hydrogenated block copolymer (a1) which comprises at least one polymer block (A1) that contains aromatic vinyl units and at least one polymer block (B1) that contains hydrogenated conjugated diene units and which has a block (A1) content of 5 to less than 40% by mass; and a hydrogenated block copolymer (a2) which comprises at least one polymer block (A2) that contains aromatic vinyl units and at least one polymer block (B2) that contains hydrogenated conjugated diene units and which has a block (A2) content of 40 to 70% by mass. The thermoplastic elastomer (c) comprises at least one polymer block (A3) that contains aromatic vinyl units, at least one polymer block (B3) that contains hydrogenated conjugated diene units, and at least one polymer block (C) that has polar functional groups. Also provided are moldings of the composition.
Inventors:
KUWAHARA SHIGENAO (JP)
MINAMIDE ASAKO (JP)
MINAMIDE ASAKO (JP)
Application Number:
PCT/JP2011/058131
Publication Date:
October 13, 2011
Filing Date:
March 30, 2011
Export Citation:
Assignee:
KURARAY CO (JP)
KUWAHARA SHIGENAO (JP)
MINAMIDE ASAKO (JP)
KUWAHARA SHIGENAO (JP)
MINAMIDE ASAKO (JP)
International Classes:
C08L53/02; C08L21/00; C08L29/14
Domestic Patent References:
| WO2009081877A1 | 2009-07-02 | |||
| WO2005063876A1 | 2005-07-14 | |||
| WO2009081877A1 | 2009-07-02 |
Foreign References:
| JP2004059635A | 2004-02-26 | |||
| JP2004059636A | 2004-02-26 | |||
| JP2007169656A | 2007-07-05 | |||
| JP2005264139A | 2005-09-29 | |||
| JP2006291019A | 2006-10-26 | |||
| JP2006206715A | 2006-08-10 | |||
| JPH06325005A | 1994-11-25 | |||
| JPH09156035A | 1997-06-17 | |||
| JP2009227844A | 2009-10-08 | |||
| JP2010001364A | 2010-01-07 |
Other References:
See also references of EP 2554593A4
Attorney, Agent or Firm:
OHTANI, Tamotsu (JP)
Tamotsu Otani (JP)
Tamotsu Otani (JP)
Download PDF:
Claims:
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