Title:
THERMOPLASTIC POLYESTER ELASTOMER RESIN COMPOSITION, AND MOLDED FOAM BODY THEREOF
Document Type and Number:
WIPO Patent Application WO/2019/065507
Kind Code:
A1
Abstract:
Provided is a thermoplastic polyester elastomer resin composition for foam molding, which contains 0.05-9.5 parts by mass of a crystal nucleating agent (B) and 0-4.5 parts by mass of a thickening agent (C) relative to 100 parts by mass of a thermoplastic polyester elastomer (A) in which a hard segment comprising a polyester containing an aromatic dicarboxylic acid and an aliphatic and/or alicyclic diol as constituent components is bonded to at least one type of soft segment selected from among an aliphatic polyether, an aliphatic polyester and an aliphatic polycarbonate. The content of soft segments in the thermoplastic polyester elastomer (A) is 45-90 mass%, and the crystal nucleating agent (B) is an alkali metal salt of an organic carboxylic acid having 3-40 carbon atoms. The composition is suitable for forming a polyester elastomer molded foam body which is lightweight, exhibits high resilience and flexibility, and has a uniform foamed state despite having a high expansion ratio.
Inventors:
AKAISHI TAKUYA (JP)
MORIO ERI (JP)
MORIO ERI (JP)
Application Number:
PCT/JP2018/035097
Publication Date:
April 04, 2019
Filing Date:
September 21, 2018
Export Citation:
Assignee:
TOYO BOSEKI (JP)
International Classes:
C08L67/00; B29C44/00; B29C45/00; C08J9/04; C08K5/098; C08L63/00
Domestic Patent References:
| WO2013179944A1 | 2013-12-05 | |||
| WO2017150668A1 | 2017-09-08 |
Foreign References:
| JP2016079226A | 2016-05-16 | |||
| JP2000355650A | 2000-12-26 | |||
| JP2017504684A | 2017-02-09 | |||
| JP2012140532A | 2012-07-26 | |||
| JP2016044254A | 2016-04-04 |
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