Crumb rubber modified asphalt with enhanced settling characteris

Details Crumb rubber modified asphalt with enhanced settling characteris Crumb rubber modified asphalt with enhanced settling characteris

1998-02-21

1999-08-17

Brunsman, David

Compositions: coating or plastic

Materials or ingredients

Pigment, filler, or aggregate compositions, e.g., stone,...

106473, 1062811, 524 59, 524 71, C08L 900, C09D19500

Patent

active

059388323

ABSTRACT:
An improved asphalt having enhanced settling properties. The asphalt includes crumb rubber particles which have been treated to produce a greater number of carboxylic sites on the surface of the crumb rubber. These carboxylic sites interact with the functional groups in the asphalt, resulting in a homogeneous mixture having improved separation characteristics as well as the improved rheological properties due to the inclusion of the crumb rubber particles.

REFERENCES:
patent: 5391226 (1995-02-01), Frankowski
patent: 5436285 (1995-07-01), Causyn et al.
patent: 5501730 (1996-03-01), Duong et al.
patent: 5558704 (1996-09-01), Masuda et al.

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