公开(公告)号：EP0250259A1

公开(公告)日：1987-12-23

申请号：EP87305463.9

申请日：1987-06-19

申请人： NIPPON ELECTRIC GLASS COMPANY, LIMITED

发明人： Imai, Katsuhiko

IPC分类号： C03C13/00

CPC分类号： C03C3/091 ,  C03C3/089 ,  C03C13/00 ,  H05K1/0366 ,  Y10S264/19

摘要： A SiO₂-B₂O₃ fiber glass composition of the present invention contains a reduced amount of B₂O₃ in comparison with conventional D glass to thereby improve the water resistance and heat resistance. The fiber glass composition of the present invention has dielectric constant of 4.5 or less for 1 MHz at the room temperature, a strain point of 485°C or more, and improved water resistance, and consists essentially of, by weight, SiO₂ 70-80%, Al₂O₃ 0-2.0%, B₂O₃ 15.0-21.5%, MgO 0-1.0%, CaO 0-2.0%, Li₂O 0-2.0%, Na₂O 0-3.0% and K₂O 0-3.0%, Li₂O + Na₂O + K₂O = 2.0-5.0%.

摘要翻译： 本发明的SiO 2 -B 2 O 3玻璃纤维组合物与常规D玻璃相比含有减少量的B 2 O 3，从而提高耐水性和耐热性。 本发明的玻璃纤维组合物在室温下的介电常数为4.5以下，应变点为485℃以上，耐水性提高，主要由SiO 2 70-80 ％，Al2O3 0-2.0％，B2O3 15.0-21.5％，MgO0-1.0％，CaO0-2.0％，Li2O 0-2.0％，Na2O 0-3.0％和K2O 0-3.0％，Li2O + Na2O + K2O = 2.0％-5.0％。