ALKYL HYDROXYALKYL CELLULOSE ETHERS CONTAINING SULFOALKYL GROUPS

摘要

HOE 92/F 165 of the disclosure Alkyl hydroxyalkyl cellulose ethers containing sulfoalkyl groups The present invention relates to alkyl hydroxyalkyl cellulose ethers which contain a sulfoalkyl group as a further substituent, to a process for the preparation of these cellulose ethers and to building material mixtures which are based on gypsum, hydrated lime or cement and contain alkyl hydroxyalkyl cellulose ethers containing sulfoalkyl groups.