Erasable ink for ball point pens comprising trifluoroethylene an

Details Erasable ink for ball point pens comprising trifluoroethylene an Erasable ink for ball point pens comprising trifluoroethylene an

1981-11-12

1983-01-11

Marquis, Melvyn I.

Coating implements with material supply

Including means to apply material-moving force

Including pressurized reservoir

401209, 523161, 524473, B43K 700, B43K 710, C08K 502

Patent

active

043679668

ABSTRACT:
An erasable ink for use in a ball point pen, particularly in a pressurized cartridge, is a fluid comprising at least 10% w of polyvinyl acetate or a copolymer of ethylene and vinyl acetate, and at least 10% w trichloroethylene. The ink preferably also contains at least 5% w of a solvent boiling in the range of 180.degree.-250.degree. C., a plasticizer boiling above 270.degree. C., a colorant, and a tackifier.

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