Magnetic display panel

Details Magnetic display panel Magnetic display panel

1980-06-18

1985-08-20

Robinson, Ellis P.

Stock material or miscellaneous articles

Structurally defined web or sheet

Honeycomb-like

40449, 346 21, 3461351, 428119, 428692, 428900, 434152, 434259, 434409, 434432, B43L 112

Patent

active

045364281

ABSTRACT:
A magnetic display panel having a transparent or translucent front substrate and a rear substrate bonded thereto by an adhesive with a dispersing liquid confining space formed between the substrates, preferably in the form of multiple cells. The dispersing liquid, composed of a fine particulate thickener, fine magnetic particles, a colorant and a dispersing medium, has a yield value of at least 5 dyne/cm.sup.2. A clear, long-lasting image is recordable by tracing a permanent magnet upon the face of the first substrate.

REFERENCES:
patent: 3938263 (1976-02-01), Tate
patent: 3982334 (1976-09-01), Tate
patent: 4143472 (1979-03-01), Murata et al.
Lubs, The Chemistry of Synthetic Dyes and Pigments, Hafner Publishing Co., New York, (1965), pp. 635-636.

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