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2 066 887

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Application

94021404/07, 1994-06-07

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Actual filing date

1994-06-07

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Published

1996-09-20

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Inventor

Sukhanova I.V.Trezvov V.V.Radchenko G.N.Meshchanov G.I.Borshchevskij G.D.Osipova G.F.Kudrjavtseva E.Ju.Pivnenko V.T.

(73)

Holder

Aktsionernoe Obshchestvo Vserossijskij Nauchno-Issledovatel'Skij, Proektno-Konstruktorskij I Tekhnologicheskij Institut Kabel'Noj Promyshlennosti

INSULATING VARNISH Russian patent published in 1996 - IPC

Abstract RU 2066887 C1

FIELD: insulation of electric conductors affording high temperature of insulation impact-puncture (not lower than 360 C) with temperature index of not lower than 180 deg. SUBSTANCE: insulating varnish has 27-40 mass parts of oligoesterisocyanuratemid based on ethylene glycol, isocyanurate tris (2-hydroxylethyl), terephthalate acid, trimellite anhydride, and 4,4′-diaminodiphenylmethane in molar proportion of (3.2-4.5):1.4-2.0):1: (2.0-3.0): (1.0-1.5) with acid number of 1-5 mg of KOH/g and 8.5-10.0% of hydroxyl groups; 59.20-72.46 mass parts of aromatic solvent; 0.54-0.80 mass parts of acrylic ester of orthotitanic acid. Used as aromatic solvent is mixture of tricresol (or dicresol) and solvent in mass proportion of (3-4): 1. EFFECT: higher temperature of insulation impact puncture. 2 cl, 3 tbl

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RU 2 066 887 C1

Authors

Sukhanova I.V.

Trezvov V.V.

Radchenko G.N.

Meshchanov G.I.

Borshchevskij G.D.

Osipova G.F.

Kudrjavtseva E.Ju.

Pivnenko V.T.

Dates

1996-09-20—Published

1994-06-07—Filed

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