Modified asphalt binder material using crumb rubber and...

Details Modified asphalt binder material using crumb rubber and... Modified asphalt binder material using crumb rubber and...

2006-05-02

2008-11-04

Brunsman, David M (Department: 1755)

Synthetic resins or natural rubbers -- part of the class 520 ser

Synthetic resins

Processes of preparing a desired or intentional composition...

C524S060000, C524S071000

Reexamination Certificate

active

07446139

ABSTRACT:
In a first aspect, bituminous asphalt binder materials which are modified by the addition of crumb rubber or ground tire rubber are described. In a second aspect, the present invention is directed to methods of producing a modified asphalt binder containing crumb rubber or ground tire rubber. The modified asphalt binders comprise neat asphalt, crumb rubber, one or more synthetic polymers, and one or more acids. The crumb rubber may be obtained from recycled truck and/or automobile tires.

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English Language Abstract of FR2732702.

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