Patent Number: 6,165,503

Title: High strength capsules, process of preparing and using the same

Abstract: In the formation of capsules having a polyanionic polysaccharide core and a polycationic polysaccharide membrane layer, improved binding of the polycationic polysaccharide is achieved by including polyvalent ions, especially calcium ions, at the membrane forming step.

Inventors: G.ang.ser.o slashed.d; Olav (Trondheim, NO), Skaugrud; .O slashed.ivind (Mj.o slashed.ndalen, NO), Dettmar; Peter (East Yorkshire, GB), Sj.ang.k-Braek; Gudmund (Trondheim, NO), Jolliffe; Ian (East Yorkshire, GB)

Assignee: FMC Biopolymer A.S.

International Classification: B01J 13/02 (20060101); A61K 009/48 (); A61K 009/66 (); A61K 009/52 ()

Expiration Date: 12/26/2013