Process for preparing molded product of thermochromic polyvinyl chloride
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United States of America Patent
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May 2, 1989
Grant Date -
N/A
app pub date -
Nov 21, 1986
filing date -
Nov 28, 1985
priority date (Note) -
Expired
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Abstract
A process for preparing a molded product of thermochromic polyvinyl chloride characterized by incorporating a thermochromic particulate material into a vinyl chloride plastisol comprising a vinyl chloride resin, plasticizer, stabilizer, lubricant and filler, and molding the resulting mixture. The thermochromic particulate material is prepared from particles of a non-thermoplastic resin having encapusated therein the three components of electron-donating chromogenic substance, electron-accepting substance and solvent by coating the particles with a hydrophilic high-molecular-weight compound.
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