Erasable system including marking surface and erasable ink compo

Details Erasable system including marking surface and erasable ink compo Erasable system including marking surface and erasable ink compo

1988-10-24

1990-07-10

Ives, P. C.

Stock material or miscellaneous articles

Structurally defined web or sheet

Discontinuous or differential coating, impregnation or bond

428195, 428323, 428327, 428498, 428519, 428520, 434413, 106 20, 106 23, 106 325, 523161, 260DIG38, 525 89, 525 98, 525 99, B32B 300, C08F 830, C09D 500

Patent

active

049406280

ABSTRACT:
An erasable system including a marking element providing a substantially non-porous marking surface and an erasable marking composition for applying markings to the marking surface. The erasable marking composition comprises a dispersion of a particulate film-forming polymeric material and a colorant and preferably also include a water soluble polymer.

REFERENCES:
patent: 3949132 (1976-04-01), Seregely et al.
patent: 4297260 (1981-10-01), Ferree, Jr. et al.
patent: 4471079 (1984-09-01), Enami
patent: 4686246 (1987-08-01), Gajria

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