Plasticized coal tar pitch, composition containing same and its

Compositions: coating or plastic – Coating or plastic compositions – Bituminous material or tarry residue

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106284, C08L 9500, C09D 324

Patent

active

043046061

ABSTRACT:
This invention relates to a plasticized coal tar pitch comprising a mixture consisting essentially of about 50 to about 80 weight percent of a coal tar pitch having a softening point of about 40.degree. to about 75.degree. C. (Kramer-Sarnow); and about 50 to about 20 weight percent of a coal tar fraction rich in crystals and having a boiling point of about 350.degree. C. to about 450.degree. C. The mixture is suitable for blending with crude oil bitumen for producing a binder suitable for application to roadways.

REFERENCES:
patent: 2304773 (1942-12-01), Anderton
patent: 2478654 (1949-08-01), Croyere
patent: 2683107 (1954-07-01), Juel
patent: 2888357 (1959-05-01), Pittman et al.
patent: 3372045 (1968-03-01), Baum et al.
Daniels, F. and R. A. Alberty, Physical Chemistry, (1961), John Wiley & Sons, Inc., pp. 176-182.

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