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

1988-12-19

1991-01-29

Sluby, P. C.

Books, strips, and leaves

Book, element thereof, or accessory therefor

428141, 428195, 428207, 4283211, 4283213, 428323, 428327, 428530, 428215, 428498, 428519, 428520, 523161, 525 89, 525 97, 525 99, 524270, 524525, 524505, 106;25, B42D 100, B32B 300, C09D 1100

Patent

active

049881230

ABSTRACT:
An erasable system including a marking element providing a non-porous marking surface and an erasable marking composition for applying markings to the marking surface. The erasable marking composition comprises a film forming polymeric material and a colorant. Preferred marking compositions comprise an elastomeric film forming polymeric material.

REFERENCES:
patent: 3949132 (1976-04-01), Seregely et al.
patent: 4097289 (1978-06-01), Hofmann et al.
patent: 4097290 (1978-06-01), Muller et al.
patent: 4256494 (1981-03-01), Yamamoto et al.
patent: 4297260 (1981-10-01), Ferree, Jr. et al.
patent: 4391927 (1983-07-01), Farmer, III
patent: 4578117 (1986-03-01), Nakanishi

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