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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11/00
Preparation of cellulose ethers
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C08B11/02
Alkyl or cycloalkyl ethers
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C08B11/04
with substituted hydrocarbon radicals
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C08B11/14
with nitrogen-containing groups
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C08B11/145
with basic nitrogen, e.g. aminoalkyl ethers
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