Exxon Chemical Patents, Inc.

George Mortimer Tiffany, Iii

William H Stover

George Conrad L'Heureux

Rolfe J Hartley

Carolyn Boggus Duncan

Renee M Roper

Jack Ryer

John Henry Smythe

Lewis H Gaines

William R Thompson

Beth A Morgan

Eric Lewis

A two-cycle oil is disclosed consisting of a polybutene polymer, solvent and mineral oil which passes the JASO engine test for gasoline fueled two-cycle engines.

Two-cycle lubricating oil

Synthetic biodegradable lubricants and functional fluids containing 45-94 wt. % of an ester of a C.sub.5 -C.sub.10 acid as the base oil, 5-18% of a polyol ester of a C.sub.12 -C.sub.28 acid as a lubricity additive, and 1-35 wt. % of an additive package for lubricants and functional fluids.

Synthetic biodegradable lubricants and functional fluids

Two-cycle ester based synthetic lubricating oil

The present invention provides functional fluid compositions containing a major portion of oil of lubricating viscosity and a novel and synergistic combination of an acylated nitrogen-containing compound having an olefinic substituent averaging in carbon number from 20 to 60 and at least one ashless detergent/dispersant.

Synergistic combinations for use in functional fluid compositions

A biodegradable two-cycle oil composition which comprises a C.sub.13 oxo alcohol adipate in admixture with a dispersant and a lubricity agent; it is especially useful for outboard marine engines.

Biodegradable two-cycle oil composition

A two-cycle oil additive composition and concentrate having improved detergency, lubricity and antiwear properties which more effectively controls deposits related to ring sticking comprising A) at least one dispersant prepared by reacting a carboxylic acid acylating agent with a polyalkylene polyamine and optionally a high molecular weight acylating agent; B) a second dispersant which is a succinimide such as prepared by acylating a polyalkylene polyamine with polyisobutylene succinic anhydride; and C) at least one polyolefin; at least one of the dispersants being a borated dispersant and which further optionally comprise at least one of the following: D) a sulfurized alkylphenol; and E) a phosphorous-containing antiwear agent.

Two-cycle oil additive

The invention relates to a two-cycle oil additive, compositions and concentrates containing said two-cycle oil additive and methods of preparing and using the two-cycle oil additive which comprises the reaction product of (A) at least one high molecular weight acylating agent (B) at least one polyalkylenpolyamine and (C) at least one monocarboxylic second acylating agent, wherein the molar ratio of the carboxylic acid acylating agent to the high molecular weight acylating agent is at least 3:1 and wherein the tertiary amine to total amine ratio of the reaction product is at least 0.7:1. The two-cycle oil additive of the invention are dispersant additives which will improve engine cleanliness and which will substantially avoid the formation of insoluble gel agglomerants at low temperatures which can adversely affect engine performance.

Growing community of inventors

Princeton Junction, NJ, United States of America

George Mortimer Tiffany, Iii