Thermochromic particle containing linear material
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United States of America Patent
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Jul 25, 1989
Issued Date -
N/A
app pub date -
May 23, 1988
filing date -
Mar 1, 1986
priority date (Note) -
Expired
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Abstract
Thermochromic particle-containing linear material product produced by the process characterized by dipping a core in the form of a monofilament or multifilament into a vinyl chloride resin sol composition having a thermochromic particulate material incorporated therein, the thermochromic particulate material being prepared by enclosing with a high polymer compound an electron-donating chromogenic substance, an electron-accepting substance for the chromogenic substance and a solvent having a boiling point of at least 150.degree. C. and selected from the group consisting of alcohols, amides, esters and azomethines and further covering the resulting product with a different high polymer compound; withdrawing the core from the sol composition; and heating the core to gel the sol composition and cover the core with the gelled composition.
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