Title:
ポリプロピレン系樹脂着色発泡粒子、ポリプロピレン系樹脂着色発泡粒子成形体及び該ポリプロピレン系樹脂着色発泡粒子の製造方法
Document Type and Number:
Japanese Patent JP7307655
Kind Code:
B2
Abstract:
To provide colored foam particles which are excellent in fusibility in in-mold molding even in polypropylene-based resin foam particles colored by a phthalocyanine-based pigment.SOLUTION: Polypropylene-based resin colored foam particles are formed of a resin composition that contains a polypropylene-based resin as a main component and further contains a phthalocyanine-based pigment and a polyethylene wax. An average bubble diameter (D) of the foamed particles is within a specific range, and a ratio [Ds/D] of an average air bubble diameter (Ds) of air bubbles positioned on the outermost surface side of the foamed particles to the average air bubble diameter (D) is 0.5 or more and less than 0.75.SELECTED DRAWING: None
Inventors:
Takashi Ohi
Hajime Ohta
Hajime Ohta
Application Number:
JP2019189710A
Publication Date:
July 12, 2023
Filing Date:
October 16, 2019
Export Citation:
Assignee:
JSP Corporation
International Classes:
C08J9/12; B29C44/00; B29C44/02; B29C44/44; B29C44/60; C08J9/18
Domestic Patent References:
| JP2013142141A | ||||
| JP2015108030A | ||||
| JP2014001334A | ||||
| JP2001181434A | ||||
| JP2005272665A |
Foreign References:
| WO2014157647A1 | ||||
| EP2415841A2 | ||||
| US20050167870 |
Attorney, Agent or Firm:
Kuninori Hirosawa