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2 258 079

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IPC

(21) (22)

Application

2004109424/04, 2004-03-29

(24)

Start date

2004-03-29

(22)

Actual filing date

2004-03-29

(45)

Published

2005-08-10

(72)

Inventor

Prozorova I.V.Bondaletov V.G.Kopytov M.A.Loskutova Ju.V.Prikhod'Ko S.I.Antonov I.G.Judina N.V.

(73)

Holder

Institut Khimii Nefti So Ran So Ran)Tomskij Politekhnicheskij Universitet

MULTIPURPOSE DEPRESSOR ADDITIVE Russian patent published in 2005 - IPC

Abstract RU 2258079 C1

FIELD: petroleum processing.

SUBSTANCE: invention aims at lowering freezing temperature, dynamic viscosity, and limiting transverse strain of petroleums as well as preventing formation of asphalt-tar-paraffin deposits during transportation and storage of petroleum. Additive contains 43-60% of product of joint oxidation of heavy pyrolysis resin with atactic polypropylene taken at weight ratio 10:(0.5-1.5) and 43-60% of alkylaromatic hydrocarbons.

EFFECT: enhanced efficiency and broadened spectrum of additive activity.

12 tbl, 4 ex

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RU 2 258 079 C1

Authors

Prozorova I.V.

Bondaletov V.G.

Kopytov M.A.

Loskutova Ju.V.

Prikhod'Ko S.I.

Antonov I.G.

Judina N.V.

Dates

2005-08-10—Published

2004-03-29—Filed