Thermosetting resin composition of semi-IPN composite, and varnish, prepreg and metal clad laminated board using the same
申请人:Hitachi Chemical Co., Ltd.
公开号:EP2407503A1
公开(公告)日:2012-01-18
Provided is a thermosetting resin composition which can be used for the production of printed circuit boards, having good dielectric properties in high frequency bands so that transmission loss can be significantly lowered, having excellent heat resistance after moisture absorption and thermal expansion properties, and satisfying peeling strength between the resin composition and metal foil.
The present invention relates to a thermosetting resin composition comprising a polyphenylene ether-modified butadiene prepolymer comprising a polyphenylene ether (A) and a butadiene polymer (B'), characterized in that the component (A) has a number average molecular weight in the range of 7000 to 30000; the component (B') comprises 40% or more of a unit derived from a 1,2-butadiene unit having a 1,2-vinyl group in a side chain; the component (B') is not a modified polybutadiene in which the 1,2-vinyl group in the side chain, or one or both of the terminals in the molecule of the component (B') is/are chemically modified by converting into epoxy, glycol, phenol, maleic acid, (meth)acryl, or urethane; and the component (B') has a cross-linked structure; and a resin varnish, a prepreg and a metal clad laminated board using the same.
本发明提供了一种可用于生产印刷电路板的热固性树脂组合物,该组合物在高频段具有良好的介电性能,从而可显著降低传输损耗,在吸湿后具有优异的耐热性和热膨胀性能,并可满足树脂组合物与金属箔之间的剥离强度。
本发明涉及一种热固性树脂组合物,该组合物包含一种聚苯醚改性丁二烯预聚物,该预聚物由聚苯醚(A)和丁二烯聚合物(B')组成,其特征在于:组分(A)的平均分子量在 7000 至 30000 之间;组分(B')包含 40% 或更多的由 1,2-丁二烯单元衍生而来的单元,该单元的侧链中含有 1,2-乙烯基;组分(B')不是改性聚丁二烯,其中侧链中的 1,2-乙烯基或组分(B')分子中的一个或两个末端通过转化为环氧、乙二醇、苯酚、马来酸、(甲基)丙烯酸或聚氨酯而被化学改性;以及组分(B')具有交联结构。