Patents Assigned to Wolff Warlsrode AG - Justia Patents Search

Patents Assigned to Wolff Warlsrode AG

Use of water-soluble sulphoalkyl derivatives of cellulose in gypsum-and cement-containing compounds

Patent number: 5358561

Abstract: The invention relates to water-soluble ionic cellulose derivatives and their use as additives for gypsum- and cement-containing compounds.

Type: Grant

Filed: January 27, 1993

Date of Patent: October 25, 1994

Assignee: Wolff Warlsrode AG

Inventors: Rene Kiesewetter, Klaus Szablikowski, Werner Lange