acid e g greater than 80 or more by weight of oleic acid such sunflower oils are available commercially under the trademark trisun u00ae from svo enterprises corporation another preferred component is at least one sulfurized fatty acid as described hereinabove it is usually an unsaturated fatty acid such as oleic or linoleic acid and may be a mixture of acids such as obtained from tall oil or by the hydrolysis of peanut oil soybean oil or the like the invention can contain at least one sulfurized olefin this olefin is preferably an aliphatic olefin that is it is essentially free of aromatic groups such as phenyl groups naphthyl groups and the like the olefin usually will contain from about 4 to about 40 carbon atoms preferably from about 8 to about 36 carbon atoms terminal olefins or alpha olefins are preferred especially those having from 12 to 20 carbon atoms olefins having internal double bonds are also useful mixtures of these olefins are commercially available and such mixtures are contemplated for use in this invention another included component is a fatty acid ester of a monohydric alcohol such a fatty acid ester is one which may be considered as being derived from a fatty acid as described hereinabove with an aliphatic monohydric alcohol such as methanol ethanol n propanol isopropanol the butanols etc mixtures thereof are also useful these esters can be prepared by methods well known in the art such fatty acid esters of monohydric alcohols are also commercially available from numerous sources the component listed above contains various hydrocarbon groups such as alkyl or alkenyl groups alkylene groups etc these hydrocarbon groups may contain non hydrocarbon substituents or heteroatoms provided such non hydrocarbon substituents or heteroatoms do not significantly detract from the essentially hydrocarbon nature.