Process for producing 3,5-di(.alpha.-methylbenzyl)salicylic acid

Details Process for producing 3,5-di(.alpha.-methylbenzyl)salicylic acid Process for producing 3,5-di(.alpha.-methylbenzyl)salicylic acid

1993-10-12

1994-07-05

Hess, B. Hamilton

Record receiver having plural interactive leaves or a colorless

Having a colorless color-former, developer therefor, or...

Heavy metal reactant

427150, 503211, 503212, 503216, 503225, B41M 5035, B41M 538

Patent

active

053267397

ABSTRACT:
A color-developing sheet using, as a color developer, polyvalent-metal-modified products of salicylic acid compounds composed mainly of a 3,5-di(.alpha.-methylbenzyl)salicylic acid derivative obtained by reacting a salicylic acid ester with an .alpha.-methylbenzyl halide in the presence of an acid catalyst and hydrolyzing the reaction product.
Said color-developing sheet has excellent color developability at low temperatures and gives a color of excellent water resistance.

REFERENCES:
patent: 4745203 (1988-05-01), Nachbur
patent: 4748259 (1988-05-01), Nachbur
patent: 4754063 (1988-06-01), Nachbur
patent: 4879368 (1989-11-01), Botta et al.
patent: 4952648 (1990-08-01), Yamaguchi et al.
English Abstract of JP-A-2 091 042.
Chemical Abstracts, vol. 93, Aug. 18, 1990, 93:7130h.
Chemical Abstracts, vol. 79, No. 3, Jul. 23, 1973, 79:18310s.

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