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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C08G18/65
Low-molecular-weight compounds having active hydrogen with high-molecular-weight compounds having active hydrogen
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C08G18/6552
Compounds of group C08G18/63
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C08G18/6558
with compounds of group C08G18/32 or polyamines of C08G18/38
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