Patent ID: 8846784

Claim:
An additive comprising at least one core component A) selected from an inorganic core component and an organic component wherein the organic core component comprises a non-cellulosic water-soluble, water-swellable or water-absorbable compound selected from the group consisting of an oligosaccharide, a polysaccharide, a sulfo group-containing copolymer and a copolymer based on acrylamide, and wherein the inorganic core component is derived from borax, ammonium sulphate or zeolite, with a rheology-enhancing property and a shell component B) applied to the same by virtue of a chemical interaction which acts as a coating, wherein the shell component B) forms chemical cross-links with the core component A) and wherein the shell component B) consists of a film-forming polymer selected from the group consisting of polyvinyl alcohol, polyvinyl acetate, polyvinyl pyrrolidine, polyvinylidene chloride, an alginate, a cellulose derivative, a starch derivative, gelatin, a wax, and mixtures thereof, or a dialdehyde, and at least one additional process additive selected from a plasticizer, an anticaking agent, or an antifoaming agent, and the shell component B) is applied onto the core component A) with the aid of component C), wherein component C) is a dialdehyde in liquid form and has resulted in a chemical crosslinking of the shell component B).