申请人:Nitto Boseki Co., Ltd.
公开号:EP3892596A1
公开(公告)日:2021-10-13
Provided is a glass fiber-reinforced resin molded article including low dielectric constant and particularly low dielectric loss tangent, in a high-frequency region of 10 GHz or more. The glass fiber-reinforced resin molded article contains glass fiber in the range of 10 to 90% by mass and a resin in the range of 90 to 10% by mass with respect to the total amount of the glass fiber-reinforced resin molded article. The glass fiber includes a composition including 52.0 to 59.5% by mass of SiO2, 17.5 to 25.5% by mass of B2O3, 9.0 to 14.0% by mass of Al2O3, 0.5 to 6.0% by mass of SrO, 1.0 to 5.0% by mass of MgO, 1.0 to 5.0% by mass of CaO, and 0.1 to 2.5% by mass of F2 and Cl2 with respect to the total amount of the glass fiber, and a number average fiber length is 1 to 10000 µm.
本发明提供了一种玻璃纤维增强树脂模压制品,该制品在 10 千兆赫或更高的高频区域具有低介电常数,尤其是低介电损耗正切。该玻璃纤维增强树脂模塑品含有玻璃纤维,其质量占玻璃纤维增强树脂模塑品总量的 10%至 90%,树脂的质量占玻璃纤维增强树脂模塑品总量的 90%至 10%。玻璃纤维的成分包括:相对于玻璃纤维总量,SiO2 占 52.0 至 59.5%(质量百分比),B2O3 占 17.5 至 25.5%(质量百分比),Al2O3 占 9.0 至 14.0%(质量百分比),SrO 占 0.5 至 6.0%(质量百分比),MgO 占 1.0 至 5.0%(质量百分比),CaO 占 1.0 至 5.0%(质量百分比),F2 和 Cl2 占 0.1 至 2.5%(质量百分比)。