METHOD FOR PRODUCING LIQUID CRYSTALLINE POLYESTER, AND LIQUID CRYSTALLINE POLYESTER
    2.
    发明申请
    METHOD FOR PRODUCING LIQUID CRYSTALLINE POLYESTER, AND LIQUID CRYSTALLINE POLYESTER 有权
    生产液晶聚酯和液晶聚酯的方法

    公开(公告)号:US20160145380A1

    公开(公告)日:2016-05-26

    申请号:US14900437

    申请日:2014-07-25

    CPC classification number: C08G63/605 C08G63/78 C09K19/3809

    Abstract: The present invention is a method for producing a liquid crystalline polyester, which comprises reacting an aromatic hydroxycarboxylic acid, a diol containing 70 mol % or more of an aromatic diol having a structural unit (I) as shown below and an aromatic dicarboxylic acid with one another in the presence of an acylating agent and an aliphatic sulfonic acid represented by formula (A) shown below. (wherein Ar represents a bivalent aromatic group which is an aromatic hydrocarbon group and has a molecular weight of less than 200) Formula (A) R—SO3H (wherein R represents an alkyl group having 1 to 12 carbon atoms) According to the present invention, a liquid crystalline polyester, which can be molded into an article having excellent tensile strength and excellent creep properties and from which a gas is generated in a reduced amount, can be produced with high efficiency.

    Abstract translation: 本发明是一种液晶聚酯的制造方法,其特征在于,使芳香族羟基羧酸,含有70摩尔%以上的具有下述结构单元(I)的芳香族二醇和芳香族二羧酸的二醇与一种 另一种在酰化剂和由下式(A)表示的脂族磺酸存在下进行。 (其中Ar表示芳族烃基并且分子量小于200的二价芳基)式(A)R-SO 3 H(其中R表示碳原子数1〜12的烷基)根据本发明 可以高效率地制造可以模制成具有优异的拉伸强度和优异的蠕变性能并且减少气体产生的制品的液晶聚酯。

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