Patent classifications
C
CHEMISTRY; METALLURGY
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C08
ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
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C08B
POLYSACCHARIDES; DERIVATIVES THEREOF
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31/00
Preparation of derivatives of starch
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C08B31/12
having alkyl or cycloalkyl radicals substituted by heteroatoms,; e.g. hydroxyalkyl or carboxyalkyl starch
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C08B31/125
having a substituent containing at least one nitrogen atom, e.g. cationic starch
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