GLASS FOR FILLERS OF COMPOSITION STOMATOLOGICAL MATERIALS MAINLY Russian patent published in 1995 - IPC

Abstract RU 2028980 C1

FIELD: material for stomatology. SUBSTANCE: glass containing SiO2, Al2O3, BaO and B2O3 has the following composition, wt.-%: aluminium oxide (Al2O3) 12-30; barium oxide (BaO) 7-27.5; boron oxide (B2O3) 1-9; cobalt oxide (CoO) 0.0001-0.0003; nickel oxide (NiO) 0.001-0.003; neodymium oxide (Nd2O3) 0.003-0.03; erbium oxide (Er2O3) 0.0004-0.007, and silicon oxide (SiO2) - the rest. X-ray contrast of glass at is 340-370, transparence is 80-90%. EFFECT: enhanced quality of glass. 1 tbl

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RU 2 028 980 C1

Authors

Syritskij A.P.

Kishmishjan A.A.

Romanovskij M.B.

Pojurovskaja I.Ja.

Bujanova T.P.

Egorova A.K.

Antonova S.L.

Dates

1995-02-20Published

1992-07-13Filed