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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C08G18/30
Low-molecular-weight compounds
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C08G18/38
having heteroatoms other than oxygen
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C08G18/3863
containing groups having sulfur atoms between two carbon atoms, the sulfur atoms being directly linked to carbon atoms or other sulfur atoms
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C08G18/3865
containing groups having one sulfur atom between two carbon atoms
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C08G18/3868
the sulfur atom belonging to a sulfide group
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