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2 026 875

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IPC

(21) (22)

Application

93051500/05, 1993-11-25

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Actual filing date

1993-11-25

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Published

1995-01-20

(72)

Inventor

Gorjunova T.G.Zmachinskaja N.E.Zlobin O.V.Pashin V.A.Paderin V.Ja.Petrovskaja Z.I.Romanina T.A.Smirnova L.I.Rjabchikov S.N.Chistjakova Z.L.

(73)

Holder

Aktsionernoe Obshchestvo

METHOD OF GALIPOT COLOPHONY AND ITS DERIVATIVES CLEARING Russian patent published in 1995 - IPC

Abstract RU 2026875 C1

FIELD: chemical-processing industry. SUBSTANCE: galipot colophony or its derivatives (esters, adducts) were treated at heating (185-280 C) with sulfur-containing alkylphenolformaldehyde resin, for example, octofor S, in the presence of phosphoric acid at the ratio resin to phosphoric acid from 1.0: 0.01 to 1.0:0.1. Properties: color index is M, Wg, X; acidic number is 168-170 mg KOH/g; softening point is 69-88 C, yield is 100%. EFFECT: increased yield of product.

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RU 2 026 875 C1

Authors

Gorjunova T.G.

Zmachinskaja N.E.

Zlobin O.V.

Pashin V.A.

Paderin V.Ja.

Petrovskaja Z.I.

Romanina T.A.

Smirnova L.I.

Rjabchikov S.N.

Chistjakova Z.L.

Dates

1995-01-20—Published

1993-11-25—Filed