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    • 2. 发明授权
    • Prepreg and conductive layer-laminated substrate for printed wiring board
    • 用于印刷电路板的预浸料和导电层 - 层压基板
    • US07820274B2
    • 2010-10-26
    • US11755374
    • 2007-05-30
    • Toshihiro OhtaTomiho YamadaShigeru Asami
    • Toshihiro OhtaTomiho YamadaShigeru Asami
    • B32B3/00
    • C08J5/24B32B15/08B32B27/04B32B27/12C08J2351/04C08L51/006H05K1/0326H05K1/036H05K1/0366H05K2201/0158Y10S428/901Y10T428/12028Y10T428/24917Y10T428/24994Y10T442/2992C08L2666/02
    • A prepreg having low dielectric constant, low dielectric loss, and high heat cycle resistance. The prepreg includes a sheet-like preform and a resin-impregnated, sheet-like, fiber-reinforced material thermal pressure adhered to the sheet-like preform. The sheet-like preform includes a graft copolymer (a) in which 15 to 40 parts by mass of an aromatic vinyl monomer are grafted to 60 to 85 parts by mass of a random or block copolymer comprising monomer units selected from nonpolar α-olefin monomers and nonpolar conjugated diene monomers. The resin-impregnated, sheet-like, fiber-reinforced material includes a sheet-like, fiber-reinforced material (b1) and a thermoplastic resin (b2) into which the sheet-like, fiber-reinforced material (b1) is impregnated. The thermoplastic resin (b2) is a random or block copolymer composed of 60 to 90 mass % of a monomer unit, which is selected from nonpolar α-olefin monomers and nonpolar conjugated diene monomers, and 10 to 40 mass % of an aromatic vinyl monomer unit.
    • 具有低介电常数,低介电损耗和高耐热循环电阻的预浸料。 预浸料包括片状预成型体和粘附到片状预成型体上的树脂浸渍的片状纤维增强材料的热压力。 片状预成型体包括接枝共聚物(a),其中将15〜40质量份芳族乙烯基单体接枝至60〜85质量份的无规或嵌段共聚物,其包含选自非极性α-烯烃单体的单体单元 和非极性共轭二烯单体。 树脂浸渍的片状纤维增强材料包括片状纤维增强材料(b1)和热塑性树脂(b2),其中浸渍有片状纤维增强材料(b1)。 热塑性树脂(b2)是选自非极性α-烯烃单体和非极性共轭二烯单体的60〜90质量%的单体单元和10〜40质量%的芳香族乙烯基单体的无规嵌段共聚物 单元。