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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C08G
MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
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8/00
Condensation polymers of aldehydes or ketones with phenols only
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C08G8/08
of formaldehyde, e.g. of formaldehyde formed in situ
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C08G8/24
with mixtures of two or more phenols which are not covered by only one of the groups C08G8/10 - C08G8/20
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