Patent ID: 9605568
Date: 2017-03-28
CPC Classifications: C10M,C10N,F01M

Claim:
1. A cylinder lubricant for a two-stroke marine engine having a BN determined according to the standard ASTM D-2896 greater than or equal to 15 milligrams of potash per gram of lubricant, comprising: (a) one or more lubricant base oils for marine engines; (b) at least one detergent based on alkali or alkaline-earth metals, overbased with metallic carbonate salts; (c) at least one neutral detergent; and (d) one or more oil-soluble alkoxylated fatty amines, and having a BN determined according to the standard ASTM D-2896 comprised between 100 and 600 milligrams of potash per gram; where the percentage by mass of alkoxylated fatty amines with respect to the total weight of lubricant is chosen such that the BN provided by these compounds represents a contribution comprised between 2 and 7 milligrams of potash per gram of lubricant; and where the BN provided by the metallic carbonate salts represents a contribution of at the most 65% of the total BN, measured according to the standard ASTM D2896, of the cylinder lubricant.