Abstract: The present invention relates to a silage film comprising or consisting of a biaxially stretched article obtained by stretching a thermoplastic composition in a machine direction and a transverse direction at elevated temperature, said thermoplastic composition comprising a polyolefin phase containing at least one polyolefin, a starch phase containing thermoplastic starch, and at least one compatibiliser, wherein the article has a layered morphology with alternating layers of starch phase and polyolefin phase, said layers of starch phase and polyolefin phase extending in machine direction and transverse direction.

Abstract: A method of making a catalyst comprises: mixing three or more catalytically active components with water to form an impregnating solution; contacting a support with the impregnating solution; impregnating the catalytically active components onto the support to form an impregnated support; and calcining the impregnated support to form a catalyst. Another method of making a catalyst comprises: co-impregnating a support with three or more catalytically active components in an impregnating solution to form an impregnated support; and calcining the impregnated support to form the catalyst.