Title:
POLYPROPYLENE RESIN EXTRUDED FOAM PARTICLES, METHOD FOR PRODUCING SAME, AND FOAM MOLDED BODY
Document Type and Number:
WIPO Patent Application WO/2022/210645
Kind Code:
A1
Abstract:
The present invention addresses the problem of providing a modified polypropylene resin having high melt tension that can obtain polypropylene resin foam particles having a low open-cell ratio. The present invention is a modified polypropylene resin obtained by reacting a polypropylene resin having a specific peak in the DSC curve with a conjugated diene compound and a radical polymerization initiator. The present invention is also a resin composition including a modified polypropylene resin, obtained by reacting a polypropylene resin with a specific ethylene polymer, a conjugated diene compound, and a radical polymerization initiator.
Inventors:
FUJISHITA AYAKA (JP)
GODA TAKAYUKI (JP)
GODA TAKAYUKI (JP)
Application Number:
PCT/JP2022/015293
Publication Date:
October 06, 2022
Filing Date:
March 29, 2022
Export Citation:
Assignee:
KANEKA CORP (JP)
International Classes:
B29B9/00; B29C44/00; B29C48/00; C08F255/02; C08J9/16; C08L51/06
Domestic Patent References:
| WO2018016399A1 | 2018-01-25 | |||
| WO2017030124A1 | 2017-02-23 | |||
| WO2020004429A1 | 2020-01-02 |
Foreign References:
| JPH10251436A | 1998-09-22 | |||
| JP2004330464A | 2004-11-25 | |||
| JP2005307024A | 2005-11-04 | |||
| JPH1135723A | 1999-02-09 | |||
| JPH10237212A | 1998-09-08 | |||
| JP2019172961A | 2019-10-10 |
Attorney, Agent or Firm:
HARAKENZO WORLD PATENT & TRADEMARK (JP)
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