C - Chemistry – Metallurgy – 10 – M
Patent
C - Chemistry, Metallurgy
10
M
C10M 141/06 (2006.01) C10M 163/00 (2006.01) F02B 75/02 (2006.01) F02B 77/04 (2006.01)
Patent
CA 2088987
-61- Title: TWO-CYCLE LUBRICANTS AND METHODS OF USING THE SAME Abstract of the Invention This invention relates to a method, comprising the steps of: introducing into a two-cycle internal combustion engine a fuel-lubricant mixture comprising a major amount of a fuel and a minor amount sufficient to increase com- pression or release stuck piston rings, of a composition comprising (A) at least one dispersant, (B) at least one reaction product of a fatty acid and a polyamine, (C) at least 25% by weight of the composition of at least one varnish dissolver selected from (a) keto- alcohols, (b) carboxylic esters having up to a total of 24 carbon atoms, (c) alkoxy alcohols, and (D) at least about 15% by weight of the composi- tion of at least one fluidizing oil. The invention also contemplates a two-cycle engine lubricant composition, comprising (A) at least one dispersant, (B) at least one reaction product of a fatty acid and a polyamine, and (C) at least about 25% by weight of the composi- tion of at least one varnish dissolver selected from (a) keto-alcohols, (b) carboxylic esters having up to a total of 24 carbon atoms and (c) alkoxy alcohols, and (D) at least about 15% by weight of the composi- tion of at least one fluidizing oil. The method and the compositions of the present invention improve compression, release of stuck rings and improve general engine cleanliness of two cycle engines.
Ridout & Maybee Llp
The Lubrizol Corporation
LandOfFree
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