Heat-sensitive recording material

Stock material or miscellaneous articles – Structurally defined web or sheet – Weight per unit area specified

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428341, 428913, 428914, 106 21, 430338, 430340, 346217, B05D 306

Patent

active

045130523

ABSTRACT:
A heat-sensitive recording material comprising a support and a heat-sensitive color forming layer formed on said support that comprises a colorless or pale-color leuco dye and an acidic material capable of making said leuco dye develop color when heated, wherein said heat-sensitive color forming layer further comprises at least one of the compounds which are expressed by the following general formulas (I), (II) or (III): ##STR1## (wherein X.sup.1 represents a hydrogen atom or a halogen atom; Y.sup.1 represents an alkyl group, an alkoxy group, a halogen atom, a benzyl group, a hydroxyl group, a carboxyl group or an allyl group; m and n are each an integer ranging from 1 to 3, respectively; and X.sup.1 and Y.sup.1 may be either identical or different from each other when m or n is an integer of 2 or more) ##STR2## (wherein X.sup.2 represents a hydrogen atom or a halogen atom; Y.sup.2 represents a hydrogen atom, an alkyl group, an alkoxy group, a halogen atom, a benzyl group, a hydroxyl group, a carboxyl group or an allyl group; m and n are each an integer ranging from 1 to 3, respectively; and X.sup.2 and Y.sup.2 may be either identical or different from each other when m or n is an integer of 2 or more) ##STR3## [wherein X.sup.2, Y.sup.2, n and m are respectively the same as in the foregoing general formula (II).]

REFERENCES:
patent: 4091122 (1978-05-01), Davis et al.
patent: 4333984 (1982-06-01), Igarashi et al.

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