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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18/00
Polymeric products of isocyanates or isothiocyanates
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C08G18/06
with compounds having active hydrogen
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C08G18/28
characterised by the compounds used containing active hydrogen
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C08G18/40
High-molecular-weight compounds
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C08G18/42
Polycondensates having carboxylic or carbonic ester groups in the main chain
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C08G18/4205
containing cyclic groups
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C08G18/4208
containing aromatic groups
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C08G18/4211
derived from aromatic dicarboxylic acids and dialcohols
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C08G18/4216
from mixtures or combinations of aromatic dicarboxylic acids and aliphatic dicarboxylic acids and dialcohols
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