Use of ethoxylated fatty amido alcohols as a reactivity additive in the process wherein cellulose is reacted with lye
AssigneeNouryon Chemicals International B.V.
InventorPeter Westbye
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Abstract
The present disclosure relates to the use of alkoxylated fatty amido alcohols in the process to make viscose wherein cellulose is reacted with lye and the lye strength is from about 8 to about 20% by weight of NaOH, based on the weight of water in the reaction mixture. The use as a reaction improvement additive improves the reaction rate between the cellulose and the lye. The use also improves the reaction between alkali-cellulose and CS2. The present disclosure also relates to solid cellulose that is treated with one or more ethoxylated fatty amido alcohols and which is suitable for use in the claimed process.
Claims15
Process wherein about 0.005 to about 2.0% by weight of an alkoxylated fatty amido alcohol is added to a cellulose pulp during or before reacting the cellulose with a lye, whereby the lye strength is from about 8 to about 20% by weight of NaOH, based on the weight of water in the reaction mixture, and the weight of the alkoxylated fatty amido alcohol is based on the weight of the cellulose, wherein the alkoxylated fatty amido alcohol is chosen from coco monoethanolamide ethoxylated with from about 5 to about 15 moles of ethylene oxide, coco diethanolamide ethoxylated with from about 5 to about 15 moles of ethylene oxide, and combinations thereof.
A solid cellulose composition comprising cellulose and from about 0.005 to about 2.0% by weight of an alkoxylated fatty amido alcohol, based on the weight of the cellulose wherein the alkoxylated fatty amido alcohol is coco diethanolamide ethoxylated with from about 5 to about 15 moles of ethylene oxide.
Dependencies are inferred from the claim text.