Record receiver having plural interactive leaves or a colorless – Having a colorless color-former – developer therefor – or... – Method of use – kit – or combined with marking instrument or...
Patent
1990-11-15
1992-10-20
Hess, B. Hamilton
Record receiver having plural interactive leaves or a colorless
Having a colorless color-former, developer therefor, or...
Method of use, kit, or combined with marking instrument or...
428195, 428521, 428913, 428914, 150 19, 150964, 503214, 503217, B41M 526
Patent
active
051570114
ABSTRACT:
A thermoreversible recording medium which permits reversible recording and erasure to be repeated by use of a heating means, such as a thermal head or a laser, and is used for example, for storage, display or printing of image or other information, comprises a matrix material and an organic substance of low molecular weight. The matrix material essentially consists of a copolymer of styrene and butadiene, and the organic substance is a saturated carboxylic acid. The saturated carboxylic acid may preferably be capric acid, lauric acid, myristic acid, palmitic acid, stearic acid, arachic acid, behenic acid or lignoceric acid. These compounds are saturated carboxylic acids with 10-24 carbon atoms. The weight ratio between the matrix and the organic substance is set within 1:1 to 20:1.
REFERENCES:
patent: 4268413 (1981-05-01), Dabisch
patent: 4442429 (1984-04-01), Kotani et al.
Kato Hiroyo
Nishioka Yoichi
Okabe Yutaka
Hess B. Hamilton
OKI Electric Industry Co., Ltd.
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