发明授权
- 专利标题: Method for producing liquid-crystalline polyester
- 专利标题(中): 液晶聚酯的制造方法
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申请号: US13556871申请日: 2012-07-24
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公开(公告)号: US08501897B2公开(公告)日: 2013-08-06
- 发明人: Tomoya Hosoda , Eiji Hosoda , Masanobu Matsubara
- 申请人: Tomoya Hosoda , Eiji Hosoda , Masanobu Matsubara
- 申请人地址: JP Tokyo
- 专利权人: Sumitomo Chemical Co., Ltd.
- 当前专利权人: Sumitomo Chemical Co., Ltd.
- 当前专利权人地址: JP Tokyo
- 代理机构: Foley & Lardner LLP
- 优先权: JP2011-165187 20110728
- 主分类号: C08G63/02
- IPC分类号: C08G63/02 ; C08G64/00
摘要:
The present invention provides a method for producing a liquid-crystalline polyester, which comprises melt-polymerizing monomers in a reactor having a draw outlet to obtain a polymer melt and drawing the polymer melt through the draw outlet, characterized in that the monomers comprise a compound selected from an aromatic hydroxycarboxylic acid and derivatives thereof, a compound selected from an aromatic dicarboxylic acid and derivatives thereof and a compound selected from an aromatic diol, an aromatic hydroxyamine, an aromatic diamine and derivatives thereof; the amount of units derived from a compound containing a 1,2-phenylene and/or a 1,3-phenylene skeleton(s) in the polyester is from 0 to 10 mol %; the melt polymerization is performed in the presence of a heterocyclic compound containing two or more nitrogen atoms; and the polymer melt has a flow initiation temperature of from 220 to 250° C.
公开/授权文献
- US20130030141A1 METHOD FOR PRODUCING LIQUID-CRYSTALLINE POLYESTER 公开/授权日:2013-01-31
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