THERMOCHROMIC COLOR-MEMORY COMPOSITION, AND THERMOCHROMIC COLOR-MEMORY MICROCAPSULE PIGMENT HAVING THE COMPOSITION ENCAPSULATED THEREIN
申请人:Ono Yoshiaki
公开号:US20120049139A1
公开(公告)日:2012-03-01
The present invention relates to a thermochromic color-memory composition comprising a solubilized mixture of (I) an electron donating coloring organic compound, (II) an electron accepting compound and (III) an ester compound represented by the following formula (1) as a reaction medium which controls color reactions of the components (I) and (II):
wherein R represents an alkyl group having 1 to 21 carbon atoms or an alkenyl group having 1 to 21 carbon atoms, and n represents an integer of from 1 to 3.