METHOD FOR PRODUCING ADHESIVE BITUMEN ADDITIVE Russian patent published in 2004 - IPC

Abstract RU 2233298 C1

FIELD: building materials production, particularly for producing materials used in road-building, road pavement building and in road repairing.

SUBSTANCE: method involved combining acidic component, namely fatty acids or flotation tar with main component, namely polyethylene polyamine under 140^oC - 180^oC temperature up to obtaining acid number of reaction products of not more than 25 mg of KOH per 1 gram; cooling mixture up to 60^oC - 45^oC and adding dibutylphosphoric acid in amount of 3% - 10% by weight.

EFFECT: increased additive efficiency due to enhanced adhesive properties thereof.

1 tbl, 8 ex

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RU 2 233 298 C1

Authors

Zelenaja S.A.

Jurov V.V.

Zelenyj M.Ts.

Rudenko V.N.

Astashov M.Ju.

Dates

2004-07-27—Published

2002-11-18—Filed