Abstract: This invention relates to a process of forming a polymeric nanocomposite comprising a continuous polymeric phase formed from a melt processible polymer having amelt processing temperature equal to or greater than about 220.degree. C. and platelet particles having an average thickness equal to or less than about 50 .ANG. and a maximum thickness of about 100 .ANG. having a secondary or primary ammonium cationic complex, a quaternary phosphonium cationic complex bonded to surface of said particles, the composite material formed by said process and an article formed from the composite material.

Abstract: This invention relates to a process of forming a composite material comprising a polymer matrix comprising a polymeric material and dispersed particles selected from the group consisting of platelet or fibrillar particles having average thicknesses of less than 50 and a maximum thickness of less than about 100 and fibrils having an average diameter equal to or less than about 200 and a maximum diameter of about 200 and having an organo metallic residue species covalently to said particles organo metallic species having a moiety which is compatible with a polymer species in the polymer matrix, or said species having a moiety which is covalently bonded to a polymer species in the polymer matrix or a combination thereof, said dispersed particles being present in an amount less than about 60% by weight of the composite material and to the composite material formed by such process

Abstract: This invention is directed to a composite formed from a gamma phase polyamide such as nylon 6 having dispersed therein a particulate material such as a phyllosilicate as for example montmorillonite.