Erasable ink

Details Erasable ink Erasable ink

1992-06-02

1994-08-16

Michl, Paul R.

Synthetic resins or natural rubbers -- part of the class 520 ser

Synthetic resins

At least one aryl ring which is part of a fused or bridged...

523160, C08K 900

Patent

active

053387937

ABSTRACT:
An erasable ink for marking boards is provided which includes a water dispersible pigment, silica, a latex and/or a spreading agent, and water, said ink having the ability to form continuous unbroken lines on a smooth, substantially non-porous surface, said lines being erasable from said surface, after drying, by a dry eraser.

REFERENCES:
patent: 3834823 (1974-09-01), Seregely et al.
patent: 3949132 (1976-04-01), Seregely et al.
patent: 4256494 (1981-03-01), Yamamoto et al.
patent: 4762875 (1988-08-01), Gold
patent: 4877451 (1989-10-01), Winnik et al.
patent: 4889765 (1989-12-01), Wallace
patent: 4935461 (1990-06-01), Nakamura
patent: 5004763 (1991-04-01), Imagawa
patent: 5062892 (1991-11-01), Halko

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