| 摘要 |
PURPOSE:The titled composition, obtained by blending a quasi-reversible thermally color changing composition capable of exhibiting a specific hysteresis width and DELTAt value concerning a color density-temperature curve with a resin and capable of keeping a different color within a specific temperature region. CONSTITUTION:A composition obtained by blending a resin, e.g. polyethylene or polypropylene, etc., with 0.1-75wt% quasi-reversible thermally color changing composition, consisting of a homogeneous compatibilized material consisting essentially of (A) an electron donative coloring organic compound, e.g. crystal violet lactone, etc., (B) an electron accepting compound, e.g. alkylphenol, etc., and (C) a compound to be medium capable of initiating a color reaction of the components (A) and (B), e.g. >=8C aliphatic monohydric alcohol, etc., and capable of exhibiting 5-80 deg.C hysteresis width and 1-30 deg.C DELTAt value in a color density-temperature curve.
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