Title:
THERMAL HISTORY INDICATING MATERIAL
Document Type and Number:
WIPO Patent Application WO/2015/075996
Kind Code:
A1
Abstract:
A thermal history indicating material comprising in order: a first cover layer; a thermal history indicating layer in which an associative fluorescent dye such that the fluorescent wavelength of the dye in an excimer state is different from that in a monomer state is immobilized in the form of a specific molecular dispersion; and a second cover layer. When kept at a specific temperature or above for a prescribed time or longer, the thermal history indicating layer changes from the initial hue to a hue different therefrom. The thermal conductivity of the first cover layer at 25°C is 1×104W/m2K or less.
Inventors:
TOGAWA KEIICHIRO (JP)
NISHIDA MITSUO (JP)
TSUJII YASUHITO (JP)
NAKAJIMA TADASHI (JP)
NISHIDA MITSUO (JP)
TSUJII YASUHITO (JP)
NAKAJIMA TADASHI (JP)
Application Number:
PCT/JP2014/073492
Publication Date:
May 28, 2015
Filing Date:
September 05, 2014
Export Citation:
Assignee:
TOYO BOSEKI (JP)
International Classes:
G01K11/16; C09K9/02; G09F3/02
Domestic Patent References:
| WO2011125837A1 | 2011-10-13 |
Foreign References:
| JP2009300986A | 2009-12-24 | |||
| JP2004115719A | 2004-04-15 |
Attorney, Agent or Firm:
Fukami Patent Office, p. c. (JP)
Patent business corporation Fukami patent firm (JP)
Patent business corporation Fukami patent firm (JP)
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