Invention Grant
- Patent Title: Expanded thermoplastic polyurethane particles and expanded thermoplastic polyurethane particle molded article
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Application No.: US15578608Application Date: 2016-05-25
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Publication No.: US10793694B2Publication Date: 2020-10-06
- Inventor: Nobumasa Koshita , Koki Nishijima , Masaharu Oikawa
- Applicant: JSP Corporation
- Applicant Address: JP Tokyo
- Assignee: JSP Corporation
- Current Assignee: JSP Corporation
- Current Assignee Address: JP Tokyo
- Agency: Fitch, Even, Tabin & Flannery LLP
- Priority: com.zzzhc.datahub.patent.etl.us.BibliographicData$PriorityClaim@2af2c205
- International Application: PCT/JP2016/065471 WO 20160525
- International Announcement: WO2016/194737 WO 20161208
- Main IPC: C08J9/18
- IPC: C08J9/18 ; C08J9/228 ; B29C44/34 ; C08J9/232 ; B29C44/44 ; C08L75/04 ; B29K75/00 ; B29K105/04 ; B29K101/12

Abstract:
Provided are expanded beads capable of providing an expanded thermoplastic polyurethane beads molded article which is excellent in physical properties, such as compression characteristics, repulsion elasticity, etc., and an expanded thermoplastic polyurethane beads molded article. Expanded beads of thermoplastic polyurethane, wherein a Shore A hardness of the thermoplastic polyurethane is 85 or more; an average cell diameter of the expanded beads is 50 to 300 μm; and a closed cell ratio when bisecting the expanded thermoplastic polyurethane bead is 60% or more; and an expanded thermoplastic polyurethane beads molded article obtained through in-mold molding of the same are disclosed.
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