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2 041 891

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C1

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IPC

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Application

5063183/05, 1992-09-24

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Actual filing date

1992-09-24

(45)

Published

1995-08-20

(72)

Inventor

Frolov A.V.Sukhanov A.E.Nedosekin A.G.Mamonov S.K.Utkin N.I.Mizev A.V.Maslov V.P.Chistov A.A.Romanovtseva T.N.

(73)

Holder

Tovarishchestvo S Ogranichennoj Otvetstvennost'Ju

POLISHING COMPOSITION Russian patent published in 1995 - IPC

Abstract RU 2041891 C1

FIELD: polishing of optical glass. SUBSTANCE: composition has, mas. p. polytetramethylene ether glycol 100; polyisocyanate on the basis of 4,4'-diphenylmethanediisocyanate 115-135; ethylene glycol 18-22; 1,4-diazobicyclo-(2,2,2)-octane 0.1-0.2; perlite dispersed product 48-90. 1,4-Diisobicyclooctane is dissolved in ethylene glycol, polytetramethylene ether glycol, perlite dispersed product and polyisocyanate were added, mixture is poured into the form heated up to 40-50 C and kept for 1 h. Glass output at working is 1.9-2.1 mg/min. Purity class of prepared polishing agent is III-IV. EFFECT: enhanced quality of polishing composition. 1 tbl

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RU 2 041 891 C1

Authors

Frolov A.V.

Sukhanov A.E.

Nedosekin A.G.

Mamonov S.K.

Utkin N.I.

Mizev A.V.

Maslov V.P.

Chistov A.A.

Romanovtseva T.N.

Dates

1995-08-20—Published

1992-09-24—Filed

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