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2 049 746

(13)

(51)

IPC

(21) (22)

Application

93033786/33, 1993-07-01

(22)

Actual filing date

1993-07-01

(45)

Published

1995-12-10

(72)

Inventor

Makarov V.N.Lokshin Eh.P.Suvorova O.V.

(73)

Holder

Institut Khimii I Tekhnologii Redkikh Ehlementov I Mineral'Nogo Syr'Ja Kol'Skogo Nauchnogo Tsentra Ran

BLACK GLASS Russian patent published in 1995 - IPC

Abstract RU 2049746 C1

FIELD: building materials production. SUBSTANCE: proposed glass contains (mass): silicium oxide 54.07-54.98, titanium oxide 2.08-3.92, aluminium oxide 4.88-5.60, ferrum oxide 15.14-18.80, calcium oxide 5.08-9.96, magnesium oxide 3.25-5.09, sodium oxide 4.12-8.47, potassium oxide 1.07-1.28, phosphorous oxide 0.10-0.73. Coefficient of linear expansion thus prepared glass is (64-79)· 10^-7 C/s. EFFECT: improves quality of desired product. 4 tbl

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RU 2 049 746 C1

Authors

Makarov V.N.

Lokshin Eh.P.

Suvorova O.V.

Dates

1995-12-10—Published

1993-07-01—Filed