PROCESS FOR THE PRODUCTION OF A DRY PRODUCT SUITABLE AS A PASTE BASE

摘要

Dry products in flake or granulate form suitable as a paste base may be obtained from a mixture, containing approximately 30 to 80% by weight of water, and consisting of from (a) 30 to 95% by weight of carboxymethylated and/or alkoxylated starch, (b) 3 to 40% by weight of a cellulose ether, and (c) 2 to 40% by weight of a water-dispersible polymer or watersoluble polymer, and (d) optionally, conventional additives, such as preservatives, wetting agents, fillers and the like. The mixture is dried in a thin layer on a surface heated to 80 to 200.degree.C. The dry products obtained do not undergo physical separation and are readily dispersible or self-dispersible in water. The paste base is particularly useful and advantageous as a wallpaper paste base since it does not clump, separate or emit dust, and can be made ready for application in a very short time.