Thermochromic coloring color-memory composition and...

Details Thermochromic coloring color-memory composition and... Thermochromic coloring color-memory composition and...

2005-11-15

2009-02-24

Lorengo, J. A. (Department: 1793)

Compositions: coating or plastic

Coating or plastic compositions

Marking

C106S031320, C106S031640

Reexamination Certificate

active

07494537

ABSTRACT:
A thermochromic coloring color-memory composition comprising a homogeneous solubilized mixture of (A) an electron donative coloring organic compound, (B) an electron accepting compound and (C) a compound represented by the specific formula as a reaction medium which controls color reactions of the components (A) and (B).

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patent: 0 873 881 (1998-10-01), None
patent: 1 477 320 (2004-11-01), None
European Search Report dated Jul. 3, 2006.

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