Patent No. U.S. 7,060,742 B2
Polysaccharide Industries AB of Bromma, Sweden has received a patent for a composition consisting of an aqueous solution comprising at least one polysaccharide having a b-1,4-glycan backbone selected from the group consisting of locust bean gum, guar gum, esparto xylan, arabinoxylan, Kojac mannan, hydroxyethyl cellulose, methylcarboxymethyl cellulose, and acetyl cellulose, or a derivative thereof and polyethylene imine, the composition being capable of forming a film, via at least partial gel formation, when applied onto a substrate.