Patent ID: 6310010
Filing Date: 2001-10-30
Classification: C10M,C10N

Abstract:
A process for preparing an oleaginous additive concentrate comprising the step of blending components (i), (ii) and (iii) at a temperature greater than about 60.degree. C. to 120.degree. C. wherein (i) is at least one unborated ashless dispersant having a hydrodynamic radius of about 8 to 40 nm; (ii) is at least one oil-soluble overbased metal detergent; and (iii) is at least one surface-active agent having a number average molecular weight less than 600 and containing at least one hydroxyl or amino group; wherein the weight ratio of said dispersant to said detergent is about 1:1 to 8:1, the amount of said surface-active agent is about 0.1 to 20 wt. % based on the total weight of said dispersant, and the sum of components (i) and (ii) on an active ingredient basis is about 30 to 60 wt % based on the total weight of said concentrate.