公开(公告)号：US20240199834A1

公开(公告)日：2024-06-20

申请号：US18553641

申请日：2022-03-15

申请人： JSP CORPORATION

发明人： Yohei KANEKO ,  Hayato NAKAMURA

IPC分类号： C08J9/228 ,  C08F232/06 ,  C08J9/00 ,  G10K11/162

CPC分类号： C08J9/228 ,  C08F232/06 ,  C08J9/0061 ,  G10K11/162 ,  C08J2201/028 ,  C08J2345/00

摘要： A porous body including, as a base resin, a crosslinked polymer obtained by crosslinking a polymer of an acrylic monomer and/or a styrene-based monomer. A storage modulus of the porous body is 5 kPa or more and 2000 kPa or less at 23° C., an apparent density of the porous body is 10 kg/m3 or more and 250 kg/m3 or less, and a molecular weight between crosslinking points of the crosslinked polymer is 1.0×104 or more.

公开(公告)号：US20230075291A1

公开(公告)日：2023-03-09

申请号：US17760410

申请日：2021-02-17

申请人： JSP CORPORATION

发明人： Yohei KANEKO ,  Kenji HARAGUCHI

IPC分类号： C08F220/18 ,  C08F212/08 ,  C08F2/32 ,  C08F218/04 ,  C08J9/22

摘要： A HIPE foam may including a vinyl-based crosslinked polymer as a base material resin. The vinyl-based crosslinked polymer may be formed by crosslinking a polymer of a styrene-based monomer and/or an acryl-based monomer. An apparent density ρ of the HIPE foam may be 35 kg/m3 or more and 500 kg/m3 or less. A molecular weight between crosslinking points of the vinyl-based crosslinked polymer forming the HIPE foam may be 2×103 or more and 2×105 or less. The HIPE foam may be used as, for example, a machinable material or an impact absorbing material.