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公开(公告)号：US11668048B2
公开(公告)日：2023-06-06
申请号：US16958471
申请日：2018-12-27
申请人： Yamauchi Corporation
发明人： Takahisa Hikida
CPC分类号： D21F3/02 , C08G18/10 , C08G18/3206 , C08G18/3215 , C08G18/44 , C08G18/7671 , C08J5/247 , C08J5/249 , C08J2375/04
摘要： A shoe press belt includes a polyurethane in which a reinforcement base member is embedded, the polyurethane being in one piece with the reinforcement base member. The polyurethane constituting at least an outer circumferential surface of the shoe press belt includes, as an urethane prepolymer component, an aliphatic polycarbonatediol component and an aromatic diisocyanate component, and includes, as a curing agent component, an aliphatic diol component having a carbon number of less than or equal to 6 and an aromatic diol component having two hydroxyethoxy groups. A content of the aromatic diol component with respect to the aliphatic diol component and the aromatic diol component is more than or equal to 10 mass % and less than or equal to 50 mass %. Accordingly, there is provided a shoe press belt suppressed in generation and development of a crack.
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公开(公告)号：US10731294B2
公开(公告)日：2020-08-04
申请号：US15564887
申请日：2016-04-05
申请人： Yamauchi Corporation
发明人： Takahisa Hikida
摘要： A shoe press belt includes a polyurethane in which a reinforcement base member is embedded, the polyurethane being in one piece with the reinforcement base member. The polyurethane constituting at least an outer circumferential surface of the shoe press belt is a thermosetting polyurethane obtained by curing an urethane prepolymer using a curing agent. The urethane prepolymer includes a first urethane prepolymer (A) obtained by a reaction between an aromatic diisocyanate and a polyol component containing an aliphatic polycarbonatediol represented by a chemical formula (1). In the chemical formula (1), m is a combination of two or more of integers of not less than 2 and not more than 12, and n is not less than 3 and not more than 33.
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