A polyolefin nanocomposite is prepared by melt blending (a) a polyolefin and (b) a smectite clay in the presence of at least one intercalating agent that is a solid at room temperature and is selected from the group consisting of (a) hydroxy-substituted carboxylic acid esters, (b) amides, (c) hydroxy-substituted...http://www.google.com/patents/US6864308?utm_source=gb-gplus-sharePatent US6864308 - Method for making polyolefin nanocomposites
