发明名称 |
MINERAL WOOL COMPOSITION |
摘要 |
The invention concerns "bi-component" mineral fibres obtained by joint fibre drawing of two different mineral compositions, in particular two glass compositions based on SiO2, alkaline oxides and earth-alkaline oxides: the two mineral compositions have a coefficient of thermal expansion alpha with a difference DELTA alpha of at least 20.10<-7> K<-1>: they have a minimum viscosity fibre drawing temperature Tlog3 between 830 and 1010 DEG C; they have a working temperature level of at least 30 DEG C; they each comprise in all less than 3 wt. % of the following components; TiO2, ZnO, BaO, Li2O, and preferably less than 1 wt.% of each; they have in weight percent, differences in boron oxide B2O3 and in sodium oxide Na2O contents respectively such that: (i) DELTA B2O3 > 2 %, (ii) DELTA Na2O > 2 %.
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申请公布号 |
WO9857900(A1) |
申请公布日期 |
1998.12.23 |
申请号 |
WO1998FR01270 |
申请日期 |
1998.06.17 |
申请人 |
ISOVER SAINT-GOBAIN;DE MERINGO, ALAIN;LAFON, FABRICE;BERNARD, JEAN-LUC;RENOUS CHAN, VERONIQUE |
发明人 |
DE MERINGO, ALAIN;LAFON, FABRICE;BERNARD, JEAN-LUC;RENOUS CHAN, VERONIQUE |
分类号 |
C03C13/00;D04H1/42;D04H1/4209;D04H1/4218;D04H1/4226;(IPC1-7):C03C13/00 |
主分类号 |
C03C13/00 |
代理机构 |
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