Mass dyeing of synthetic polymers with dyes in salt form
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United States of America Patent
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Jun 4, 1996
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N/A
app pub date -
Jun 14, 1994
filing date -
Jun 16, 1993
priority date (Note) -
Expired
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Abstract
This invention relates to dyes in salt form which are useful for mass dyeing of synthetic polymers. In particular, this invention relates to ammonium or immonium salt-containing dyes that display good polymer affinity, and the methods for using those dyes to color polymeric substrates.
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