Binders for electrodes

Details Binders for electrodes Binders for electrodes

1974-11-11

1977-04-12

Levine, Herbert

Mineral oils: processes and products

Asphalts, tars, pitches and resins; making, treating and...

By distillation

208 44, 208 67, 423448, C10G 3706

Patent

active

040173780

ABSTRACT:
A binder suitable for use in electrodes is prepared by distilling a residue boiling above 200.degree. C from steam cracking to give a material with a KS softening point of 55.degree. - 90.degree. C and thermally ageing the material to increase the KS softening point to 80.degree. - 100.degree. C.
The residue may be obtained from the steam cracking of naphtha. The thermal ageing may be carried out by heating under reflux or by recycling the residue at the base of the distillation column.
The binder preferably has a KS softening point of 88.degree. - 100.degree. C a density above 1.20, a Conradson carbon index of 45 - 60, a beta resin content of 20 - 35% wt and an alpha resin content below 10% wt.

REFERENCES:
patent: 2752290 (1956-06-01), Beattie
patent: 3537976 (1970-11-01), Alexander et al.
patent: 3794579 (1974-02-01), Enomoto et al.

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