Plaster of paris products and their manufacture

Claim 1

A DRY, SETTABLE PLASTER OF PARIS BANDAGBE OF SUBSTANTIALLY UNDELAYED SETTING-TIME, COMPRISING A FLEXIBLE BACKING MATERIAL COATED WITH A SUBSTANTIALLY UNIFORM COMBINATION OF 100 PARTS BY WEIGHT OF POWDERED PLASTER OF PARIS AND 0.2 TO 2 PARTS BY WEIGHT OF A CELLULOSE GLYCOLLIC ACID ETHER SELECTED FROM THE CLASS CONSISTING OF CELLULOSE GLYCOLLIC ACID ETHERS CONTAINING FROM 0.5 TO 2 ACID GROUPS PER ANHYDROGLUCOSE UNIT OF THE CELLULOSE AND HAVING A VISCOSITY BETWEEN ABOUT 6 SECONDS AND ABOUT 40 SECONDS AS DETERMINED IN 0.5 WEIGHT PERCENT SOLUTION IN 0.5 NORMAL AQUEOUS NAOH IN A MODIFIED OSTWALD-FENSKE VISCOSIMETER PIPETTE ASTM D-445 #300 AS COMPARED WITH 5 SECONDS FOR THE 0.5 NORMAL NAOH ALONE.