Process for improving the filterability of viscoses

Details Process for improving the filterability of viscoses Process for improving the filterability of viscoses

1980-09-29

1982-07-20

Lieberman, Allan

Compositions: coating or plastic

Coating or plastic compositions

Carbohydrate or derivative containing

106165, 264188, 536 60, 536 61, C08J 302, C08J 304, C08L 122, C08L 124

Patent

active

043404294

ABSTRACT:
The invention provides a process for improving the solution state (filterability) of viscoses, wherein mashing of the alkali cellulose-xanthate with dilute sodium hydroxide solution or water and/or dissolving of the xanthate by agitation, disintegration or pump circulation etc. is carried out under an overpressure of from about 1 to 30 bar.

REFERENCES:
patent: 1917646 (1933-07-01), Herrmann
patent: 2985647 (1961-05-01), Von Kohorn
patent: 4158698 (1979-06-01), Geyer, Jr. et al.
Lange, Handbook of Chemistry, Handbook Publishers, Inc., Sandusky, Ohio, 1956, p. 1803.

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