Copolymers of alpha-olefins are generally disclosed, including methods of making such copolymers. In some embodiments, copolymers of alpha-olefins and certain unsaturated ester compounds are also disclosed, including methods of making such copolymers. Lubricant compositions including copolymers of alpha-olefins are also disclosed, as well as methods of using such compositions in certain lubricant applications.

The present invention relates to functional fluid compositions containing antioxidants, and specifically stable compositions containing antioxidants with limited solubility in and/or limited compatibility with the functional fluids with which they are used. In particular the present invention deals with functional fluids used in internal combustion engines, such as engine oils, and antioxidants containing a phenolic or benzoic group, where the antioxidant is present in the functional fluid composition at levels that would otherwise cause the composition to be unstable and/or hazy.

The present technology is related to amide or ester containing quaternary ammonium salts having a hydrocarbyl substituent of number average molecular weight ranging from 300 to 750, and the use of such quaternary ammonium salts in fuel compositions to improve the water shedding performance of the fuel composition.

The present technology is related to imidazole containing quaternary ammonium salts and the use of such quaternary ammonium salts in compositions to improve the water shedding performance of the compositions.

The present technology is related to imide containing quaternary ammonium salts having a hydrocarbyl substituent of number average molecular weight ranging from 300 to 750, and the use of such quaternary ammonium salts in fuel compositions to improve the water shedding performance of the fuel composition.

The present technology is related to imide containing quaternary ammonium salts having a hydrocarbyl substituent of number average molecular weight of 1300 to 3000, and the use of such quaternary ammonium salts in fuel compositions or lubricating compositions to improve the water shedding performance of the fuel or lubricant composition.

The present technology is related to quaternary ammonium salts prepared with alcohol functionalized and/or C.sub.4 to C.sub.20 epoxide quaternizing agents, such as, for example, glycidol and 1,2-butylene oxide, and the use of such quaternary ammonium salts in fuel compositions to improve the water shedding performance of the fuel composition.

The present technology is related to coupled quaternary ammonium salts, and the use of such coupled quaternary ammonium salts in fuel and oil compositions, or demulsification and/or engine performance of the compositions.

The present technology is related to branched amine containing quaternary ammonium salts, and the use of such quaternary ammonium salts in fuel and oil compositions.

The present technology is related to amide or ester containing quaternary ammonium salts having a hydrocarbyl substituent of number average molecular weight of 1300 to 3000, and the use of such quaternary ammonium salts in fuel compositions to improve the water shedding performance of the fuel composition.