Organic compounds -- part of the class 532-570 series – Organic compounds – Carbohydrates or derivatives
Patent
1981-11-12
1983-10-11
Clingman, A. Lionel
Organic compounds -- part of the class 532-570 series
Organic compounds
Carbohydrates or derivatives
106164, 536 57, 536 61, C08G 1810
Patent
active
044093845
ABSTRACT:
A process for the production of an acceptably filterable viscose from cellulose whereby cellulose is treated with an aqueous solution containing 13 to 16 weight percent NaOH, peroxide aged, xanthated and dissolved in dilute aqueous NaOH.
REFERENCES:
patent: 1279329 (1918-09-01), Glover et al.
patent: 1860432 (1932-05-01), Richter
patent: 1917646 (1933-07-01), Herrmann
patent: 2614102 (1952-10-01), Schlosser et al.
patent: 2643999 (1953-06-01), Drisch
patent: 2735846 (1956-02-01), Richter
patent: 2858304 (1958-10-01), Bradshaw et al.
patent: 2985647 (1961-05-01), Von Kohorn
patent: 3298844 (1967-01-01), Swakon
patent: 3395140 (1968-07-01), Williams
patent: 3728330 (1973-04-01), Sihtola et al.
patent: 4269973 (1981-05-01), Geyer, Jr. et al.
patent: 4287334 (1981-09-01), Fauth et al.
Hirosi Sobue, "Regarding the Knowledge of Alkali Cellulose, I-II", Aug. 30, 1939.
Theodor N. Kleinert, "Reaction Mechanisms of Alkali Cellulose Air Aging".
"Studies on the Mechanism of the Aging of Alkalicellulose", Part Two of a Special Report, Jun. 1938, Hawkesbury, Ontario.
Clingman A. Lionel
E. I. Du Pont de Nemours and Company
LandOfFree
Viscose preparation using low concentration caustic does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Viscose preparation using low concentration caustic, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Viscose preparation using low concentration caustic will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-1276443