The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Aug. 10, 1976
Filed:
Mar. 04, 1974
Applicant:
Inventors:
Joseph Cremer, Hermulheim, DT;
Heinz Harnisch, Lovenich, DT;
Johannes Adolf Krassig, Seewalchen, OE;
Johannes Hupfl, Seewalchen, OE;
Werner Gschaider, Vocklabruck, OE;
Assignees:
Hoechst Aktiengesellschaft, Cologne, DT;
Chemiefaser Lenzing Aktiengesellschaft, Lenzing, OE;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
D01F / ;
U.S. Cl.
CPC ...
264194 ; 106 / ; 106165 ; 106177 ; 264191 ;
Abstract
Flame-retardant fibers of regenerated cellulose are produced by adding one or more flame-retardant phosphorus compounds to the viscose, extruding the viscose into a spinning bath and, if desired, stretching and after-treating the resulting filaments or staple fibers. The flame-retardant agent is a compound of the general formula