Invention Grant
- Patent Title: Thermochromic coloring color-memory composition and thermochromic coloring color-memory microcapsule pigment containing the same
- Patent Title (中): 热变色着色色记忆组合物和含有其的热致色着色色记忆微胶囊颜料
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Application No.: US12256273Application Date: 2008-10-22
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Publication No.: US07708913B2Publication Date: 2010-05-04
- Inventor: Katsuyuki Fujita
- Applicant: Katsuyuki Fujita
- Applicant Address: JP Aichi
- Assignee: The Pilot Ink Co., Ltd.
- Current Assignee: The Pilot Ink Co., Ltd.
- Current Assignee Address: JP Aichi
- Agency: Sughrue Mion, PLLC
- Priority: JP2003-138990 20030516; JP2003-319039 20030910
- Main IPC: B43K5/00
- IPC: B43K5/00 ; C09K9/02
Abstract:
A thermochromic coloring color-memory composition which comprises a homogeneous solubilized mixture of (A) an electron donative coloring organic compound, (B) an electron accepting compound and (C) an ester compound represented by the specific formula as a reaction medium which controls color reactions of the components (A) and (B).
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