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    • 4. 发明授权
    • Polybenzoxazole resin and precursor thereof
    • 聚苯并恶唑树脂及其前体
    • US06297351B1
    • 2001-10-02
    • US09465004
    • 1999-12-16
    • Mitsumoto MurayamaToshimasa EgucihTakashi YamajiTakuya HataoNobuhiro HigashidaYoko Mizumoto
    • Mitsumoto MurayamaToshimasa EgucihTakashi YamajiTakuya HataoNobuhiro HigashidaYoko Mizumoto
    • C08G7324
    • C08G73/22
    • A polybenzoxazole precursor having recurring units represented by the following general formula (1) and a polybenzoxazole resin having a structure obtained by cyclizing the polybenzoxazole precursor: wherein n denotes an integer of 1-1000, and (i) when X is selected from bivalent aromatic groups represented by the general formulas (2)-(4) defined in the specification each having two OR groups (Rs each denotes H or a monovalent organic group and may be the same or different), and the amide group in the formula (1) and the OR group respectively bond to the adjacent carbon atoms of the aromatic group, Y denotes a bivalent organic group containing fluorine; and (ii) when Y is selected from bivalent aromatic groups represented by the general formulas (5)-(7) defined in the specification, X denotes a bivalent aromatic group containing fluorine and having two OR groups (Rs each denotes H or a monovalent organic group and may be the same or different), and the amide group in the formula (1) and the OR group respectively bond to the adjacent carbon atoms of the aromatic group.
    • 具有由以下通式(1)表示的重复单元的聚苯并恶唑前体和具有通过使聚苯并恶唑前体环化获得的结构的聚苯并恶唑树脂:其中n表示1-1000的整数,和(i)当X选自二价芳族 在本说明书中定义的通式(2) - (4)表示的各自具有两个OR基团的基团(Rs各自表示H或一价有机基团,可以相同或不同),式(1)中的酰胺基 )和OR基分别与芳族基团的相邻碳原子键合,Y表示含氟的二价有机基团; 和(ii)当Y选自由说明书中定义的通式(5) - (7)表示的二价芳族基团时,X表示含氟并具有两个OR基团的二价芳族基团(Rs各自表示H或一价 有机基团可以相同或不同),式(1)中的酰胺基和OR基分别与芳族基团的相邻碳原子键合。