| 发明名称 |
REINFORCING GLASS YARNS WITH LOW DIELECTRIC CONSTANTS |
| 摘要 |
<p>The invention concerns a glass yarn whereof the composition comprises the following constituents in the limits defined, expressed in weight percentages: SiO2 50 to 60 %, preferably SiO2 >/= 52 % and/or SiO2 </= 57 %; Al2O3 10 to 19 %, preferably Al2O3 >/= 13 % and/or Al2O3 </= 17 %; B2O3 16 to 25 %; P2O50.5 to 4 %; Na2O </= 1.5 %, preferably Na2O </= 0.8 %; K2O </= 1.5 %, preferably K2O </= 0.8 %; R2O </= 2 %, preferably R2O </= 1 %; CaO </= 10 %; MgO </= 10 %; F </= 0 to 2 %; RO 4 to 15 %, preferably RO >/= 6 % and/or RO </= 10 % ; miscellaneous </= 3 % ; wherein R2O = Na2O + K2O + Li2O and RO = CaO + MgO. The dielectric properties of said glass compositions are particularly advantageous.</p> |
| 申请公布号 |
WO02094728(A1) |
申请公布日期 |
2002.11.28 |
| 申请号 |
WO2002FR01509 |
申请日期 |
2002.05.02 |
| 申请人 |
SAINT-GOBAIN VETROTEX FRANCE S.A.;LECOMTE, EMMANUEL;CREUX, SOPHIE |
发明人 |
LECOMTE, EMMANUEL;CREUX, SOPHIE |
| 分类号 |
C03C3/118;C03C13/00;H05K1/03;(IPC1-7):C03C13/00 |
主分类号 |
C03C3/118 |
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