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2 082 743

(13)

(51)

IPC

(21) (22)

Application

93033679/25, 1993-06-29

(22)

Actual filing date

1993-06-29

(45)

Published

1997-06-27

(72)

Inventor

Glagoleva A.A.Boev Eh.I.

(73)

Holder

Gosudarstvennyj Nauchno-Issledovatel'Skij I Proektnyj Institut Redkometallicheskoj Promyshlennosti

METHOD OF SURFACE TREATMENT OF LUMINOPHORS Russian patent published in 1997 - IPC

Abstract RU 2082743 C1

FIELD: television screens. SUBSTANCE: reactor is filled with demineralized water, to which 0.05-2 g of Aerosil (silica powder) per 1 cu.dm water is added. The second reactor is filled with demineralized water at 90 C, to which europium-activated luminophor based on yttrium oxide and/or oxysulfide is added under stirring followed by addition of Aerosil suspension in amount 1 cu. dm per 1 kg of luminophor under stirring. Precipitate is filtered off and dried at 100-110 C. As a result, one achieves brightness of kinescopes 70-85 candles/sq.m, continuous coating with good adhesion, coverable mosaic elements with even edges, and high-density mosaic elements. EFFECT: improved characteristics of screen coating. 2 cl

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RU 2 082 743 C1

Authors

Glagoleva A.A.

Boev Eh.I.

Dates

1997-06-27—Published

1993-06-29—Filed