Sulfonate-containing polyesters dyeable with basic dyes
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United States of America Patent
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Mar 4, 1997
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N/A
app pub date -
Aug 9, 1996
filing date -
May 18, 1995
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Abstract
Filaments of ethylene terephthalate polyester copolymers that contain a lithium salt of a glycollate of 5-sulfo-isophthalic acid provide improvements over commercially-available basic-dyeable polyester filaments.
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