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Application

97116999/04, 1997-10-07

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Actual filing date

1997-10-07

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Published

1999-09-20

(72)

Inventor

Fakhrutdinov R.Z.Ganieva T.F.Kemalov A.F.Dijarov I.N.Ibragimov R.A.Sharifullin A.A.Lutfullin R.A.Solodova N.L.

(73)

Holder

Kazanskij Gosudarstvennyj Tekhnologicheskij Universitet

BITUMEN-RUBBER COMPOSITION AND METHOD OF ITS PRODUCING Russian patent published in 1999 - IPC

Abstract RU 2137792 C1

FIELD: road, industrial, hydrotechnical industry, civil engineering. SUBSTANCE: bitumen-rubber composition has bitumen, rubber crumb and softening agent. Composition has a nonvulcanized rubber crumb as rubber crumb, heavy resin of pyrolysis or polyalkylbenzene resin, or wood resin of leafy species as a softening agent and a plasticizer additionally. Method of producing bitumen-rubber composition involves heating bitumen, rubber crumb and softening agent. Preliminary prepared mixture consisting of 1.5-2.5 wt.-% of nonvulcanized rubber crumb, 2.5-45 wt.-% of the above indicated softening agent-plasticizer is kept for 24 h, stirred at 100-130 C up to preparing the homogeneous mass and bitumen heated to 100-130 C is added at stirring. EFFECT: improved elastic and adhesion properties, simplified process. 2 cl, 2 tbl

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RU 2 137 792 C1

Authors

Fakhrutdinov R.Z.

Ganieva T.F.

Kemalov A.F.

Dijarov I.N.

Ibragimov R.A.

Sharifullin A.A.

Lutfullin R.A.

Solodova N.L.

Dates

1999-09-20—Published

1997-10-07—Filed

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