Invention Grant
US08575277B2 Process for production of nucleus-hydrogenated aromatic vinyl/(meth)acrylate copolymers
有权
核 - 氢化芳族乙烯基/(甲基)丙烯酸酯共聚物的生产方法
- Patent Title: Process for production of nucleus-hydrogenated aromatic vinyl/(meth)acrylate copolymers
- Patent Title (中): 核 - 氢化芳族乙烯基/(甲基)丙烯酸酯共聚物的生产方法
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Application No.: US12672152Application Date: 2008-08-04
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Publication No.: US08575277B2Publication Date: 2013-11-05
- Inventor: Yasuhiro Kushida , Yuuichi Sugano , Tatsuya Yamauchi , Hideyuki Sato , Yoshikazu Shima
- Applicant: Yasuhiro Kushida , Yuuichi Sugano , Tatsuya Yamauchi , Hideyuki Sato , Yoshikazu Shima
- Applicant Address: JP Tokyo
- Assignee: Mitsubishi Gas Chemical Company, Inc.
- Current Assignee: Mitsubishi Gas Chemical Company, Inc.
- Current Assignee Address: JP Tokyo
- Agency: Oblon, Spivak, McClelland, Maier & Neustadt, L.L.P.
- Priority: JP2007-203815 20070806
- International Application: PCT/JP2008/063961 WO 20080804
- International Announcement: WO2009/020096 WO 20090212
- Main IPC: C08F8/04
- IPC: C08F8/04

Abstract:
A safe and stable production method of a hydrogenated polymer having high transparency, which is a production method of a hydrogenated polymer by hydrogenating aromatic rings of an aromatic vinyl compound-(meth)acrylate copolymer, in which (1) a solvent solution of the copolymer is added to a reactor, which has a solvent and a supported palladium catalyst charged therein, under a hydrogen atmosphere at a rate of from 0.01 to 15 g/hour in terms of the copolymer per unit mass (g) of the supported palladium catalyst, thereby performing hydrogenation reaction, and then such an operation is performed repeatedly that (2) a hydrogenated polymer is obtained from 30 to 90% by mass of the resulting reaction mixed solution, and a fresh solvent solution of the copolymer is added to the reactor, in which the residual reaction mixed solution is left, or to which the residual reaction mixed solution is returned, at a rate of from 0.01 to 15 g/hour in terms of the copolymer per unit mass (g) of the supported palladium catalyst, thereby performing hydrogenation reaction.
Public/Granted literature
- US20110269912A1 PROCESS FOR PRODUCTION OF NUCLEUS-HYDROGENATED AROMATIC VINYL/(METH)ACRYLATE COPOLYMERS Public/Granted day:2011-11-03
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