0735368-A1 is referenced by 8 patents and cites 6 patents.

A method of indicating a time or a temperature-time accumulated value as a color change, which comprises providing an agent A and an agent B in a non-contact state, wherein one of agent A and agent B is an oxidation-polymerizable dyestuff and the other is an oxidizing agent, and bringing the agent A and the agent B into contact with each other to polymerize the oxidation-polymerizable dyestuff and an indicator material therefor.

Title
Method of indicating time or temperature-time accumulated value as color change, and materials therefor
Application Number
EP19960302212 19960329
Publication Number
0735368 (A1)
Application Date
March 29, 1996
Publication Date
October 2, 1996
Inventor
Sato Keiichi
JP
Ishiguro Hideyuki
JP
Dohi Makoto
JP
Yanagi Masato
JP
Assignee
Toyo Ink Mfg Co
JP
IPC
G01N 31/22
C07D 279/20
G01N 31/22
G01N 31/22
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