Process for producing a crosslinked cellulose ether
AssigneeDow Global Technologies LLC
InventorsAlexandra Hild, Jöerg Neubauer, Steffen Schmidt, Robert Baumann
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Abstract
A process for producing a crosslinked cellulose ether including contacting an activated cellulose material with (i) an aqueous crosslinking agent emulsion, wherein the aqueous crosslinking agent emulsion is a mixture of (ia) at least one crosslinking agent; (ib) water; and (ic) any other optional components desired; and (ii) at least one etherification reagent; wherein the aqueous crosslinking agent emulsion (i) and the at least one etherification reagent (ii) react with the activated cellulose material to form the crosslinked cellulose ether; and a crosslinked cellulose ether produced by the above process.
Claims13
A process for producing a crosslinked cellulose ether comprising contacting an activated cellulose material with (i) an aqueous crosslinking agent emulsion comprising (ia) at least one crosslinking agent and (ib) water;
- and (ii) at least one etherification reagent;
- wherein the aqueous crosslinking agent emulsion and the at least one etherification reagent form a reaction mixture which reacts with the activated cellulose material to form the crosslinked cellulose ether;
- wherein the at least one crosslinking agent is a diglycidyl ether type crosslinking agent having the following chemical Structure (I):
- wherein n is selected from 3 to 25;
- and wherein the crosslinked cellulose ether is a water soluble crosslinked cellulose ether.
Dependencies are inferred from the claim text.