THERMAL RECORDING MATERIAL
PURPOSE:To enable a thermal recording material which is high in colouring sensitivity and excellent in brightness to be obtained by a method wherein a compound having a specified composition is contained. CONSTITUTION:A compound as given by the formula I is contained in a thermal recording material...
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Main Authors | , , , |
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Format | Patent |
Language | English |
Published |
22.05.1991
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Subjects | |
Online Access | Get full text |
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Summary: | PURPOSE:To enable a thermal recording material which is high in colouring sensitivity and excellent in brightness to be obtained by a method wherein a compound having a specified composition is contained. CONSTITUTION:A compound as given by the formula I is contained in a thermal recording material which develops colour by thermally melting an electron donative achromatic colour former and an electron acceptive developing material on a base material. In the formula I, R is hydrogen atom or methyl group, A is 1-7C alkylene group, Z is hydroxy compound residual group, and n is 1-8 integer. As a compound forming the hydroxy compound residual group as given by Z of the formula I (a group obtained by removing a part or all of hydroxyl groups from the hydroxy compound), only if it is a compound having one or more hydroxyl groups in the molecule, said compound is not specially limited. A material for thermal recording which is extremely high in colouring sensitivity and excellent in brightness (texture fog) is obtained thereby. |
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Bibliography: | Application Number: JP19890258337 |