Color-developing agents and color-developing sheets

Details Color-developing agents and color-developing sheets Color-developing agents and color-developing sheets

1995-10-30

1997-07-15

Klemanski, Helene

Compositions: coating or plastic

Coating or plastic compositions

Marking

523161, C09D 1102

Patent

active

056478968

ABSTRACT:
Provided are a color-developing agent comprising a multivalent metal salt of a salicylic acid derivative and a sulfonated phenol and/or a metal salt thereof and having excellent initial and ultimate color-developing capacities and improved waterproofness; and a color-developing sheet making use of the color-developing agent.

REFERENCES:
patent: 3983292 (1976-09-01), Saito et al.
patent: 4121013 (1978-10-01), Miller et al.
patent: 4754063 (1988-06-01), Nachbur
patent: 4929710 (1990-05-01), Scholl et al.
patent: 4952648 (1990-08-01), Yamaguchi et al.
patent: 5382560 (1995-01-01), Hisada et al.
patent: 5393332 (1995-02-01), Saito et al.

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