Title:
可逆熱変色性組成物及びそれを内包した可逆熱変色性マイクロカプセル顔料
Document Type and Number:
Japanese Patent JP7005598
Kind Code:
B2
Abstract:
[Problems]The present invention provides a highly marketable reversibly color changeable composition which provides a vivid yellow to orange color during color development, turns colorless during decoloration, and improves light resistance and a reversibly thermochromic microcapsule pigment encapsulating the same.[Solution]Disclosed are a reversibly thermochromic composition including: (a) a specific pyridine derivative as an electron-donating color-developing organic compound; (b) an electron-accepting compound; and (c) a reaction medium which reversibly induces an electron transfer reaction between the component (a) and the component (b) in a specific temperature range, and a reversibly thermochromic microcapsule pigment encapsulating the same.
Inventors:
Hiroshi Umemoto
Application Number:
JP2019511312A
Publication Date:
January 21, 2022
Filing Date:
April 06, 2018
Export Citation:
Assignee:
Pilot Ink Co., Ltd.
International Classes:
C09K9/02; B41M5/28; B41M5/323; C08K5/00; C08K5/3432; C08L101/00; C09B57/00; C09B67/08
Domestic Patent References:
| JP2012046556A | ||||
| JP2000129252A | ||||
| JP8127768A | ||||
| JP2001342193A | ||||
| JP2000169448A |
Foreign References:
| WO2013049229A1 |
Attorney, Agent or Firm:
Hiroyuki Nagai
Nakamura Yukitaka
Satoru Asakura
Maekawa Hideaki
Itsuko Endo
Nakamura Yukitaka
Satoru Asakura
Maekawa Hideaki
Itsuko Endo