1153980-A is referenced by 8 patents.
1,153,980. Bituminous compositions. ESSO RESEARCH & ENG. CO. 18 March, 1968, No. 12920/68. Heading C3N. A bituminous composition comprises 25-40 wt per cent (a) a vacuum reduced aromatic hydrocarbon distillation residuum and 60-75 wt. per cent (b) oxidized solvent extract of a naphthenic base lubricating oil fraction, (a) May have softening-point 225-350 F; (b) may be an air-oxidized phenol extract of softening- point 50-150 F.