C CHEMISTRY; METALLURGY
C08 ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
C08G MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
18/00 Polymeric products of isocyanates or isothiocyanates
C08G18/06 with compounds having active hydrogen
C08G18/28 characterised by the compounds used containing active hydrogen
C08G18/40 High-molecular-weight compounds
C08G18/62 Polymers of compounds having carbon-to-carbon double bonds
C08G18/6216 Polymers of alpha-beta ethylenically unsaturated carboxylic acids or of derivatives thereof
C08G18/622 Polymers of esters of alpha-beta ethylenically unsaturated carboxylic acids