Lead-free glasses exhibiting characteristics of crystal

Compositions: ceramic – Ceramic compositions – Glass compositions – compositions containing glass other than...

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501 69, 501 70, C03C 3078

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active

054686938

ABSTRACT:
The present invention relates to the production of lead-free glasses exhibiting densities of at least 2.9 g/cm.sup.3 and refractive indices of at least 1.545 which consist essentially, in weight percent, of

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Chemical Abstracts, vol. 115, No. 6, 12 Aug. 1991, Columbus, Ohio; abstract No. 55421m, p. 364 & JP-A-3 012 337 (Nippon Electric Glass Co., Ltd.) 21 Jan. 1991.
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