Process of making flame retardant cellulosic man-made fibers
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United States of America Patent
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Jun 5, 2018
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app pub date -
Dec 9, 2011
filing date -
Dec 20, 2010
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Abstract
The invention relates to flame-retardant cellulosic man-made fibers containing a flame-retardant substance in the form of an oxidized condensate of a tetrakis hydroxyalkyl phosphonium salt with ammonia and/or a nitrogenous compound which contains one or several amine groups whereby the fiber has a tenacity of more than 18 cN/tex in a conditioned state. Production process and the use of the fibers according to the invention are further objects of the invention.
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