Dye polymers, their preparation and their use in dye compositions
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United States of America Patent
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-
Feb 9, 1982
Grant Date -
N/A
app pub date -
May 20, 1980
filing date -
May 25, 1979
priority date (Note) -
Expired
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Abstract
A dye polymer for use in dye compositions for coloring keratinic fibers comprises units of the formula ##STR1## wherein, R represents hydrogen or alkyl, x is a whole number equal at least to 2, and X represents the residue of a molecule of a dye or a dye precursor.
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