Title:
PROCESS FOR THE FABRICATION OF ACTIVATED CELLULOSE AND DERIVATIVES THEREOF
Document Type and Number:
WIPO Patent Application WO2001004075
Kind Code:
A8
Abstract:
Process for the fabrication of activated cellulose and derivatives thereof such as viscose as raw material for the fabrication of fibers, films and other cellulose products through the treatment of any available cellulose source, essentially discarded or recycled cellulose material, wood pulp, non ligneous pulps, Kraft and paper grade pulps, chemical dissolution grade pulps, and mixtures thereof, with sodium hydroxide to a concentration from 19 to 26 % by weight at a temperature of approximately 50 to 105 DEG C during 26 to 240 minutes, wherein the properties and purity of the derivatives or products are not affected adversely.
Inventors:
HERNANDEZ TORRES LANDA ENRIQUE
GUTIERREZ ANTONIO JOEL
PARADA AVILA JAIME
GUTIERREZ ANTONIO JOEL
PARADA AVILA JAIME
Application Number:
PCT/MX2000/000027
Publication Date:
June 28, 2001
Filing Date:
July 14, 2000
Export Citation:
Assignee:
GRUPO CYDSA SA DE CV (MX)
International Classes:
C08B1/08; D01F2/06; D01F13/02; (IPC1-7): C08B1/08
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