The invention pertains to aqueous gels, gel-forming compositions and composites containing the same, comprising carrageenan and a cation of such a type and in such a concentration that the gel has a transition midpoint temperature below 45.degree. C. and a yield stress of at least 0.5 kN/m.sup.2 at 5.degree....http://www.google.es/patents/US5002934?utm_source=gb-gplus-sharePatente US5002934 - Aqueous gel comprising carrageenan
