Cellulose ethers having improved dispersing properties

US4474950A · kind A · utility

Assignee

• Hoechst GmbH · DE

Inventors

• Utz-Hellmuth Felcht · Bad Soden, DE
• Helmut Berenbold · Wiesbaden, DE

Key dates

• Filing date: Aug 26, 1983
• Grant date: Oct 2, 1984
• Expiry date: Aug 26, 2003

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C08B15/05
• WIPO field: Macromolecular chemistry, polymers
• WIPO sector: Chemistry

Abstract

Modified cellulose reaction products, which are dispersible in aqueous media over a broad pH range without lump formation, are prepared by reacting water-soluble cellulose ether with a specified silane modifying agent in the amount of from 0.0001 to 0.12 mole of modifying agent per mole of cellulose in the cellulose ether.