Methods are provided for producing Group I base stocks having high viscosity and also having one or more properties indicative of a high quality base stock. The resulting Group I base stocks can have a viscosity at 100? C. and/or a viscosity at 40? C. that is greater than the corresponding viscosity for a conventional Group I bright stock formed by solvent processing. Additionally, the resulting Group I base stocks can have one or more properties that are indicative of a high quality base stock.

Methods are provided for producing Group I base stocks having high viscosity and also having one or more properties indicative of a high quality base stock. The resulting Group I base stocks can have a viscosity at 100? C. and/or a viscosity at 40? C. that is greater than the corresponding viscosity for a conventional Group I bright stock formed by solvent processing. Additionally, the resulting Group I base stocks can have one or more properties that are indicative of a high quality base stock.

Methods are provided for producing Group II base stocks having high viscosity and also having one or more properties indicative of a high quality base stock. The resulting Group II base stocks can have a viscosity at 100? C. and/or a viscosity at 40? C. that is greater than the corresponding viscosity for a conventional Group II base stock. Additionally, the resulting Group II base stocks can have one or more properties that are indicative of a high quality base stock.

Methods are provided for producing Group II base stocks having high viscosity and also having one or more properties indicative of a high quality base stock. The resulting Group II base stocks can have a viscosity at 100? C. and/or a viscosity at 40? C. that is greater than the corresponding viscosity for a conventional Group II base stock. Additionally, the resulting Group II base stocks can have one or more properties that are indicative of a high quality base stock.

Methods are provided for producing Group III base stocks having high viscosity and also having one or more properties indicative of a high quality base stock. The resulting Group III base stocks can have a viscosity at 100 C. and/or a viscosity at 40 C. that is greater than the corresponding viscosity for a conventional Group III base stock. Additionally, the resulting Group III base stocks can have one or more properties that are indicative of a high quality base stock.

Methods are provided for producing Group III base stocks having high viscosity and also having one or more properties indicative of a high quality base stock. The resulting Group III base stocks can have a viscosity at 100 C. and/or a viscosity at 40 C. that is greater than the corresponding viscosity for a conventional Group III base stock. Additionally, the resulting Group III base stocks can have one or more properties that are indicative of a high quality base stock.

Provided are a lubricating material which is made of a non-fluorine-based compound and thus has a surface that is slippery enough for liquid such as water or oil, a lubricant-holding base material which holds a fluorine-based lubricant and thus can be used as a lubricating material, and methods for producing the same. A slippery film has a holding base and a lubricant. The holding base has pillar structure portions and fluorine-containing portions, and the fluorine-containing portions are provided on outer surfaces of a plurality of pillar portions in the pillar structure portion. The lubricant is a fluorine-based liquid, and the fluorine-containing portion has a CF bond. The lubricant is loaded into a region surrounded by a plurality of the pillar portions and is held in this region.

The present invention relates to specific derivatives of dimer fatty acids, compositions comprising them and a method to reduce pour points.

The present invention relates to a Fischer-Tropsch derived residual base oil having a kinematic viscosity at 100 C. according to ASTM D445 in the range of from 15 to 35 mm.sup.2/s, an average number of carbon atoms per molecule Fischer-Tropsch derived residual base oil according to .sup.13C-NMR in a range of from 25 to 50.

A method for combined production of renewable paraffinic products is disclosed, wherein the method includes providing a renewable paraffinic feed, and fractionating the renewable paraffinic feed into two fractions. Within the two fractions, a lighter fraction fulfils a specification for an aviation fuel component, and a heavier fraction fulfils a specification for an electrotechnical fluid component.