公开(公告)号：US20240084090A1

公开(公告)日：2024-03-14

申请号：US18240196

申请日：2023-08-30

申请人： JSP Corporation

发明人： Shobu YAMASAKI ,  Yosuke ITO

IPC分类号： C08J9/18 ,  C08J9/00 ,  C08J9/12 ,  C08J9/232 ,  C08K13/02

CPC分类号： C08J9/18 ,  C08J9/0004 ,  C08J9/0023 ,  C08J9/0028 ,  C08J9/0061 ,  C08J9/122 ,  C08J9/232 ,  C08K13/02 ,  C08J2203/02 ,  C08J2205/044 ,  C08J2323/12 ,  C08J2379/02 ,  C08K3/04

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.

公开(公告)号：US20230348693A1

公开(公告)日：2023-11-02

申请号：US18040853

申请日：2021-05-25

申请人： JSP CORPORATION

发明人： Shobu YAMASAKI

IPC分类号： C08K5/17 ,  C08K3/04 ,  C08J9/16

CPC分类号： C08K5/17 ,  C08K3/04 ,  C08J9/16 ,  C08J2323/14

摘要： A polyolefin-based resin expanded bead contains a base resin containing a polyolefin-based resin as a main component, carbon black, and a flame-retardant. A bulk density of the polyolefin-based resin expanded beads is 10 to 100 kg/m3. A blending amount of the carbon black is 0.5 to 10 parts by mass based on 100 parts by mass of the base resin. The flame-retardant contains a hindered amine-based compound represented by the following general formula (I), and a blending amount of the hindered amine-based compound is 0.01 to 1 parts by mass based on 100 parts by mass of the base resin.