Process for obtaining bitumens containing at least one elastomer

Details Process for obtaining bitumens containing at least one elastomer Process for obtaining bitumens containing at least one elastomer

1992-06-10

1993-10-26

Michl, Paul R.

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

Synthetic resins

Processes of preparing a desired or intentional composition...

524 64, 523352, C08L 9500

Patent

active

052567125

ABSTRACT:
This process for obtaining bitumens containing at least one elastomer comprises two steps according to which, in the first step, a homogeneous dispersion is prepared consisting of elastomer and of selected bitumen containing a low percentage of saturated products and of asphaltenes by blending the said elastomer and the said bitumen until a master solution containing a high concentration of elastomer is obtained and, in the second step, the said master solution is diluted with a roadmaking bitumen until a homogeneous product is obtained in the form of an elastomeric bitumen.

REFERENCES:
patent: 4755545 (1988-07-01), Lalwani
patent: 4837252 (1989-06-01), Seguin et al.

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