Artificial hair from poly amino acid urethane fiber
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United States of America Patent
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Feb 1, 1994
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N/A
app pub date -
Feb 7, 1992
filing date -
Feb 13, 1991
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Abstract
An artificial hair made of a fibers comprising a poly-.alpha.-amino acid derivative insoluble to water and alcohols and represented by one of the following general formulae (1)-(4): ##STR1## providing that R in each of the above formula (1)-(4) is R.sup.a, R.sup.b and R.sup.c represented, respectively, by the following general formula (5), (6) or (7): ##STR2## or made or polyamino acid urethane fiber comprising a copolymer of an amino acid N-carboxy anhydride and a polyurethane, in which the copolymer is subjected to an amidation reaction with an organic diamine and an organic amine having amino groups and mercapto groups or disulfide groups and to shaping into a fibrous form. The artificial hair has a dyeability, shape retainability, natural and soft and flexible feeling, excellent tough and brushing property, as well as has natural color and gloss and toughness like that natural protein fiber.
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