Invention Grant
- Patent Title: Polyurethane resin, producing method of polyurethane resin, and molded article
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Application No.: US16612057Application Date: 2018-05-09
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Publication No.: US11312815B2Publication Date: 2022-04-26
- Inventor: Daisuke Hasegawa , Hidetaka Honda , Hiroshi Kanayama , Hirofumi Morita , Satoshi Yamasaki
- Applicant: MITSUI CHEMICALS, INC.
- Applicant Address: JP Tokyo
- Assignee: MITSUI CHEMICALS, INC.
- Current Assignee: MITSUI CHEMICALS, INC.
- Current Assignee Address: JP Tokyo
- Agency: Rankin, Hill & Clark LLP
- Priority: JPJP2017-094697 20170511
- International Application: PCT/JP2018/017877 WO 20180509
- International Announcement: WO2018/207807 WO 20181115
- Main IPC: C08G18/75
- IPC: C08G18/75 ; C08G18/10 ; C08G18/24 ; C08G18/42 ; C08G18/48

Abstract:
A polyurethane resin is a reaction product of a polyisocyanate component containing a bis(isocyanatomethyl)cyclohexane with a macropolyol component having a number average molecular weight of above 400 and 5000 or less. The shore A hardness thereof is 80 or less, a temperature at which a storage elastic modulus E′ thereof shows 1×106 Pa is 200° C. or more, and a ratio (E′150/E′50) of a storage elastic modulus E′150 at 150° C. with respect to a storage elastic modulus E′50 at 50° C. is 0.1 or more and 1.4 or less.
Public/Granted literature
- US20200165377A1 POLYURETHANE RESIN, PRODUCING METHOD OF POLYURETHANE RESIN, AND MOLDED ARTICLE Public/Granted day:2020-05-28
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