Synthetic fibers containing photochromic pigment and their preparation
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United States of America Patent
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Jun 6, 1995
Issued Date -
N/A
app pub date -
Apr 11, 1994
filing date -
Jun 3, 1991
priority date (Note) -
Expired
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Abstract
Synthetic textiles containing a photochromic pigment. The pigments are prepared by encapsulating a photochromic pigment in a thermoplastic polymer having a high melt flow index, mixed with a primary thermoplastic resin, and extruded at a temperature of less than 250.degree. C. through a spinnerette having a diameter of at least 0.3 mm.
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