发明名称 METHOD FOR MAKING FLOAT GLASS HAVING REDUCED DEFECT DENSITY
摘要 A method for reducing the defect density of glass comprising melting a glass composition comprising from 65-75 wt.% of SiO2; from 10-20 wt.% of Na2O; fro m 5-15 wt.% of CaO; from 0-5 wt.% of MgO; from 0-5 wt.% of Al2O3; from 0-5 wt. % of K2O; from 0-2 wt.% Fe2O3; and from 0-2 % FeO, wherein the glass compositi on has a total field strength index of greater than or equal to 1.23 is disclos ed.
申请公布号 CA2499945(A1) 申请公布日期 2004.04.08
申请号 CA20032499945 申请日期 2003.09.26
申请人 PPG INDUSTRIES OHIO, INC. 发明人 SMITH, CHARLENE S.;PECORARO, GEORGE A.
分类号 C03B5/235;C03B18/18;C03B18/20;C03C3/087;C03C4/02;(IPC1-7):C03C3/087 主分类号 C03B5/235
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