Erasable ink composition

Details Erasable ink composition Erasable ink composition

1989-08-31

1990-10-02

Dixon, Jr., William R.

Compositions: coating or plastic

Coating or plastic compositions

Corrosion inhibiting coating composition

106 23, 106 27, 106 32, C09D 1116, C09D 1300

Patent

active

049604643

ABSTRACT:
An ink which consists of 17-20% by weight of a graphite powder, 17-20% by weight of a lubricating oil having a low viscosity and a low melting point, 44-47% by weight of oleic acid extracted from vegetable oil, 15-17% by weight of ethylene glycol, and 450-500 ppm of ferrous sulfate, the oleic acid and the ethylene glycol reacting with one another and serving as a carrier, and the ferrous sulfate catalyzing the reaction between the oleic acid and the ethylene glycol.

REFERENCES:
patent: 2239142 (1941-04-01), Chesler et al.
patent: 2715388 (1955-08-01), Cofield, Jr. et al.
patent: 2852397 (1958-09-01), Goessling
patent: 4209332 (1980-06-01), Tsujio
patent: 4371632 (1983-02-01), Grossman et al.
patent: 4687791 (1987-08-01), Miyajima et al.

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