RARE EARTH-CONTAINING ZINC PHOSPHATE GLASSES

This invention is concerned with the preparation of glasses exhibiting transition temperatures below 450.degree.C, working temperatures below 500.degree.C, and exceptional resistance to mild aqueous alkaline solutions consisting essentially, expressed in terms of mold percent on the oxide basis, of:...

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Bibliographic Details
Main Authors DICKINSON, JAMES E. JR, BEALL, GEORGE H, QUINN, CANDACE J
Format Patent
LanguageEnglish
French
Published 29.12.1990
Edition5
Subjects
CHEMICAL COMPOSITION OF GLASSES, GLAZES, OR VITREOUSENAMELS
CHEMISTRY
GLASS
JOINING GLASS TO GLASS OR OTHER MATERIALS
METALLURGY
MINERAL OR SLAG WOOL
SURFACE TREATMENT OF FIBRES OR FILAMENTS MADE FROM GLASS,MINERALS OR SLAGS
SURFACE TREATMENT OF GLASS
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Summary:This invention is concerned with the preparation of glasses exhibiting transition temperatures below 450.degree.C, working temperatures below 500.degree.C, and exceptional resistance to mild aqueous alkaline solutions consisting essentially, expressed in terms of mold percent on the oxide basis, of: ZnO 12-55 K2O 0-25 P2O5 28-40 Li2O+Na2O+K2O 10-35 Li2O 0-25 Rare earth metal oxide 1-5 Na2O 0-25 At least two alkali metal oxides will most desirably be present.
Bibliography:Application Number: CA19902017521