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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C08G18/0804
Manufacture of polymers containing ionic or ionogenic groups
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C08G18/0809
containing cationic or cationogenic groups
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C08G18/0814
containing ammonium groups or groups forming them
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