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2 046 812

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C1

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IPC

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Application

95100809/04, 1995-01-31

(22)

Actual filing date

1995-01-31

(45)

Published

1995-10-27

(72)

Inventor

Zelenina R.I.Korobov V.V.Proezdova E.V.Romanina T.A.Smirnova N.N.Tabunkin V.A.Titov A.I.

(73)

Holder

Aktsionernoe Obshchestvo Zakrytogo Tipa

PROCESS FOR TREATING ROSIN AND DERIVATIVES THEREOF Russian patent published in 1995 - IPC

Abstract RU 2046812 C1

FIELD: for protective coatings. SUBSTANCE: (gum rosin or thallic rosin, ethers thereof, adducts with maleic anhydride and other derivatives) are treated (modified) with alkyldisulfide phenolformaldehyde diester of maleic or fumaric acid at 180-220 C, the amount of this modifying (or clearing) agent being from 0.04 to 0.25 of the weight of the original product. The properties of the rosin: improved density no crystallization occurs. EFFECT: modified clear rosin.

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RU 2 046 812 C1

Authors

Zelenina R.I.

Korobov V.V.

Proezdova E.V.

Romanina T.A.

Smirnova N.N.

Tabunkin V.A.

Titov A.I.

Dates

1995-10-27—Published

1995-01-31—Filed

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