US Patent 9988743 Process of making flame retardant cellulosic man-made fibers
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Patent 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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Patent Inventor Names
Clemens Bisjack0
Gert Kroner0
Hartmut Rüf0
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US Patent 09988743 Process of making flame retardant cellulosic man-made fibers US Patent 9988743 Process of making flame retardant cellulosic man-made fibers
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Patent Number
099887430
Patent Number
99887430
Edits on 23 Apr, 2023
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Is a
Patent Jurisdiction
Patent Number
099887430
Date of Patent
June 5, 2018
0Patent Application Number
139937180
Date Filed
December 9, 2011
0Patent Primary Examiner
Edits on 20 Jan, 2022
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US Patent 09988743 Process of making flame retardant cellulosic man-made fibers
Infobox
Is a
Patent jurisdiction
Patent number
09988743
Date of patent
June 5, 2018
Patent application number
13993718
Date Filed
December 9, 2011
Patent primary examiner
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