Patent ID: 6464908
Filing Date: 2002-10-15
Classification: B29C,B29K,B82Y,C04B,C08K,D01F,F16D,H01B

Abstract:
A method of preparing a composite that includes a reaction injection molded matrix into which carbon fibrils have been incorporated comprising the steps of:mixing less than 20% by weight of carbon fibrils with one or more liquid reactants capable of polymerizing to form said matrix, said fibrils having diameters less than about 500 nanometers and length-to-diameter ratios of at least 5, having graphitic layers which project on the fibril axis at least two fibril diameters, being substantially free of a continuous carbon overcoat, and having a plurality of oxygen-containing groups or derivatives thereof on the outer surface of the graphitic layers; introducing the mixture into a mold; and molding the mixture under reaction conditions including pressure and temperature to prepare said composite.