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    • 7. 发明申请
    • LOW DIELECTRIC BROMINATED RESIN WITH A SYMMETRIC OR SATURATED HETEROCYCLIC ALPHATIC MOLECULAR STRUCTURE AND THE PREPARATION THEREOF
    • 具有对称或饱和杂环化合物分子结构的低介电自旋树脂及其制备方法
    • US20110245431A1
    • 2011-10-06
    • US12752450
    • 2010-04-01
    • Ming Jen TZOUChi Cheng ChenChih Hong Chen
    • Ming Jen TZOUChi Cheng ChenChih Hong Chen
    • C08L63/00C08G65/40
    • C08G59/08C08G59/1438
    • The present invention provides a brominated epoxy resin, which has a molecular segment of low polarity in the polymer chain, while the molecular segment of low polarity is attributed to the symmetric or saturated cyclic alphatic molecular structure with low “molecular dipole moment” characteristics; making a printed circuit board for high frequency signal transformation applications needs a proper copper clad laminate which processes the properties of a low dielectric constant and of a low dissipation factor; a copper clad laminate can meet above requirements by using the inventive resin as a laminate binder. The inventive resin is prepared by the following steps: 1. Reacting a 2,6-disubstituted mono-phenol compound (A) with an aldehyde or a cyclic diene compound (B), so as to obtain a bisphenol compound (C) having a high symmetry or saturated aliphatic heterocyclic structure; 2. Reacting the resultant symmetric or saturated cyclic diphenol compound (C) with epichlorohydrin for an epoxidation reaction to obtain an epoxy resin (D); and 3. Reacting the resultant epoxy resin (D) with a bromine-containing phenolic compound (E) to obtain the inventive novel brominated epoxy resin (F).
    • 本发明提供了一种溴化环氧树脂,其在聚合物链中具有低极性的分子链段,而低极性的分子链段归因于具有低“分子偶极矩”特性的对称或饱和环状脂肪分子结构; 制造用于高频信号转换应用的印刷电路板需要适当的覆铜层压板,其处理低介电常数和低损耗因子的性质; 通过使用本发明的树脂作为层压粘合剂,覆铜层压板可以满足上述要求。 本发明的树脂通过以下步骤制备:1.用醛或环二烯化合物(B)反应2,6-二取代的单酚化合物(A),以获得具有 高对称性或饱和脂肪杂环结构; 2.用环氧氯丙烷反应所得到的对称或饱和环状二酚化合物(C)进行环氧化反应得到环氧树脂(D); 和3.将得到的环氧树脂(D)与含溴酚化合物(E)反应,得到本发明的新型溴化环氧树脂(F)。