Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Publication of BE584738ApublicationCriticalpatent/BE584738A/xx
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—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen
C08G18/28—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen characterised by the compounds used containing active hydrogen
C08G18/40—High-molecular-weight compounds
C08G18/48—Polyethers
C08G18/487—Polyethers containing cyclic groups
C08G18/4879—Polyethers containing cyclic groups containing aromatic groups