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
C08G18/00 Polymeric products of isocyanates or isothiocyanates
C08G18/06 with compounds having active hydrogen
C08G18/161 containing two or more components to be covered by at least two of the groups C08G18/166, C08G18/18 or C08G18/22
C08G18/163 covered by C08G18/18 and C08G18/22