Granular bitumen coated with carbon black or silica

Details Granular bitumen coated with carbon black or silica Granular bitumen coated with carbon black or silica

1989-08-02

1991-10-01

Lesmes, George F.

Stock material or miscellaneous articles

Coated or structually defined flake, particle, cell, strand,...

Particulate matter

1062811, 427213, 428403, B32B 1104, B32B 1112, C08L 9500

Patent

active

050532790

ABSTRACT:
A free-flowing granular bitumen product containing from 0.5 to 6% by weight of a powdery coating and separating agent such as synthetic silica or carbon black is prepared by atomizing hot, liquid bitumen in a spray mixer while simultaneously introducing the powdery coating and separating agent by means of the cold air flow into the spray mixer.

REFERENCES:
patent: 4168178 (1979-09-01), Hessler
patent: 4375988 (1983-03-01), Mueller et al.
patent: 4378999 (1983-04-01), Muller et al.
patent: 4410589 (1983-10-01), Muller et al.
patent: 4710229 (1987-12-01), Muller et al.

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