- 专利标题: EXPANDED POLYPROPYLENE RESIN BEADS AND EXPANDED POLYPROPYLENE RESIN BEADS MOLDED ARTICLE
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申请号: US18240196申请日: 2023-08-30
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公开(公告)号: US20240084090A1公开(公告)日: 2024-03-14
- 发明人: Shobu YAMASAKI , Yosuke ITO
- 申请人: JSP Corporation
- 申请人地址: JP Tokyo
- 专利权人: JSP Corporation
- 当前专利权人: JSP Corporation
- 当前专利权人地址: JP Tokyo
- 优先权: JP 22137590 2022.08.31
- 主分类号: C08J9/18
- IPC分类号: C08J9/18 ; C08J9/00 ; C08J9/12 ; C08J9/232 ; C08K13/02
摘要:
An expanded polypropylene resin bead contains an inorganic pigment, a hindered amine compound, and an ultraviolet light absorber. The ultraviolet light absorber contains an ultraviolet light absorber A having a molecular weight of 360 or more, and a content of the ultraviolet light absorber A in the expanded polypropylene resin bead is 0.010% by mass or more and 2% by mass or less. An expanded polypropylene resin beads molded article is produced by in-mold molding of the expanded polypropylene resin bead.
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