Cellulose ethers containing 2-propenyl groups and use thereof as protective colloids in polymerizations
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United States of America Patent
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Nov 30, 1999
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app pub date -
Mar 2, 1998
filing date -
Mar 3, 1997
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Abstract
Water-soluble, nonionic cellulose ethers selected from the group consisting of alkylcelluloses and hydroxyalkylcelluloses having an average degree of polymerization of less than 900 which is substituted by, on average, from 0.01 to 0.04 2-propenyl groups per anhydroglucose unit are used as protective colloids in the preparation of aqueous polymer dispersions.
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