Invention Grant
- Patent Title: Process of making flame retardant cellulosic man-made fibers
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Application No.: US13993718Application Date: 2011-12-09
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Publication No.: US09988743B2Publication Date: 2018-06-05
- Inventor: Hartmut Rüf , Clemens Bisjack , Gert Kroner
- Applicant: Hartmut Rüf , Clemens Bisjack , Gert Kroner
- Applicant Address: AT Lenzing
- Assignee: Lenzing AG
- Current Assignee: Lenzing AG
- Current Assignee Address: AT Lenzing
- Agency: Fitzpatrick, Cella, Harper, Scinto
- Priority: ATA2096/2010 20101220; ATA742/2011 20110523
- International Application: PCT/AT2011/000489 WO 20111209
- International Announcement: WO2012/083318 WO 20120628
- Main IPC: D01D1/02
- IPC: D01D1/02 ; D01D5/12 ; D01D5/14 ; D01D5/16 ; D01D10/00 ; D01D10/06 ; D01F2/10 ; D01F2/18 ; D02J1/22 ; D01D5/26 ; D01F1/07 ; D01F2/06 ; D01F2/02 ; C09K21/12 ; D01D5/06 ; D01F2/00 ; D01F2/08
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.
Public/Granted literature
- US20130337715A1 FLAME RETARDANT CELLULOSIC MAN-MADE FIBERS Public/Granted day:2013-12-19
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