broken down kevlar pulp the aluminum complex grease was prepared by mixing 6 4 wt of aluminum benzoate stearate complex with 93 6 wt of an mvi naphthenic oil to form the aluminum complex grease the thixotropic base material mvi is an industrial standard grade of naphthenic oil available from exxon chemical company shell chemical company or calumet the drum was secured to the base of a vertical blender the blender blades were cleaned and lowered into the drum the composition was then mixed at 45 rpm for at least 15 minutes mixing was stopped and the blender speed was reset at its highest practical speed and mixing was continued until the kevlar pulp was thoroughly dispersed as evidence visually by the absence of small clumps of kevlar pulp the mixer was stopped and a sample taken to test for kevlar dispersion if lumps are detected mixing is continued until no visible lumps are detected the mixer was stopped and another 48 08 wt of the aluminum complex grease was added to the drum the mixer was turned on at a lower speed and mixed for an additional 15 minutes to disperse the added aluminum complex grease this pre mix constituted a pre dispersed kevlar pulp aluminum complex grease masterbatches of this fiber grease can be prepared and stored for subsequent use in mass production to a large blender was added 55 2 wt of the aluminum complex.