Hydroxydiphenyl sulfone derivative and heat-sensitive...

Details Hydroxydiphenyl sulfone derivative and heat-sensitive... Hydroxydiphenyl sulfone derivative and heat-sensitive...

B - Operations, Transporting

41

M

42/3, 260/615.7

B41M 5/333 (2006.01) B41M 5/155 (2006.01) G03G 5/09 (2006.01)

Patent

CA 1237733

Abstract of the disclosure: A hydroxydiphenyl sulfone derivative represented by the formula [ I ] is a novel compound and a heat - sensitive recording material which comprises at least one of the derivatives as a color acceptor not only has an excellent recording sensitivity, resistances to plasticizer and diazo developer but also suits to high - speed recording, has an excellent storage stability of record images and does not decrease in whiteness of the background, Image wherein R1 and R2 are each hydrogen, halogen, lower alkyl, lower alkoxyl or hydroxyl and n is an integer of 3 or 4.

496486

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