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US 2013/0210622 A1Published application
Thermochromic color-memory composition and thermochromic color-memory microcapsule pigment encapsulating the same
AssigneeThe Pilot Ink Co., Ltd.
InventorYoshiaki Ono
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Abstract
The present invention relates to a thermochromic color-memory composition containing: (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 reaction of the components (I) and (II): (in the formula, X represents any of a hydrogen atom, an alkyl group having 1 to 4 carbon atoms, an alkoxy group having 1 to 4 carbon atoms, and a halogen atom, m represents an integer of from 1 to 3, and n represents an integer of from 1 to 20).
Claims5
A thermochromic color-memory composition comprising:
- (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 reaction of the components (I) and (II):
- (in the formula, X represents any of a hydrogen atom, an alkyl group having 1 to 4 carbon atoms, an alkoxy group having 1 to 4 carbon atoms, and a halogen atom, in represents an integer of from 1 to 3, and n represents an integer of from 1 to 20).
1 more element
Dependencies are inferred from the claim text.