| 摘要 |
This invention provides novel sulfohydroxypropyl ethers of polygalactomannans having a degree of substitution between about 0.01 and 3, and further provides a process for producing sulfohydroxypropyl ethers of polygalactomannan gums by contacting solid polygalactomannan gum with 3-halo-2-hydroxypropanesulfonic acid and alkali metal hydroxide or ammonium hydroxide under alkaline conditions in an aqueous solution of water-miscible solvent.
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