Invention Grant
- Patent Title: Urethane (meth)acrylate, method for manufacturing urethane (meth)acrylate, curable composition, cured article, and method for manufacturing cured article
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Application No.: US16305472Application Date: 2017-05-25
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Publication No.: US10975191B2Publication Date: 2021-04-13
- Inventor: Taketo Ikeno , Umi Yokobori , Hideyuki Sato , Ryuji Hasemi
- Applicant: MITSUBISHI GAS CHEMICAL COMPANY, INC.
- Applicant Address: JP Chiyoda-ku
- Assignee: MITSUBISHI GAS CHEMICAL COMPANY, INC.
- Current Assignee: MITSUBISHI GAS CHEMICAL COMPANY, INC.
- Current Assignee Address: JP Chiyoda-ku
- Agency: Oblon, McClelland, Maier & Neustadt, L.L.P.
- Priority: JP2016-109813 20160601
- International Application: PCT/JP2017/019515 WO 20170525
- International Announcement: WO2017/208959 WO 20171207
- Main IPC: C08G18/44
- IPC: C08G18/44 ; C08G18/67 ; C08G18/24 ; C08G18/28 ; C08G18/73 ; C08G18/76

Abstract:
Provided is a urethane (meth)acrylate capable of achieving high strength and high elongation, as well as a method for manufacturing a urethane (meth)acrylate, a curable composition, a cured article, and a method for manufacturing a cured article. The urethane (meth)acrylate contains a structural unit derived from polycarbonate diol, a structural unit derived from polyisocyanate, and a hydroxy group-containing (meth)acrylate-derived group, the polycarbonate diol containing one or more types of structural unit represented by formula (1) wherein each of R1, R2, R3 and R4 independently represents an aliphatic hydrocarbon group having 1 to 6 carbon atoms.
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