Process for the production of flame-retardant viscose fibres

Details Process for the production of flame-retardant viscose fibres Process for the production of flame-retardant viscose fibres

2009-01-28

2011-12-06

Torres Velazquez, Norca L (Department: 1786)

Plastic and nonmetallic article shaping or treating: processes

Forming continuous or indefinite length work

Shaping by extrusion

C264S195000, C428S920000, C428S921000, C428S364000, C428S365000, C442S141000, C442S414000

Reexamination Certificate

active

08070996

ABSTRACT:
The present invention relates to a process for the production in continuous of cellulose-based flame-retardant fibres or filaments and textile articles obtained therefrom, comprising the predispersion in water of an organophosphoric additive, the dosing and mixing of the aqueous predispersion in a solution of cellulose xanthogenate, the filtration of the mixed solutions and spinning in a regenerating and coagulation bath.

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Letter dated Apr. 5, 2011 from Mark Pohl, Pharmaceutical Patent Attorneys, LLC to Norca L. Torres-Velazquez, United States Patent and Trademark Office.
Citation of Prior Art under 35 U.S.C. § 301 filed in the United States Patent and Trademark Office on Feb. 23, 2011.
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