This invention provides a threaded connection for pipes or tubes having excellent misalignment resistance and high torque on shoulder resistance, and also having excellent corrosion resistance properties, as well as a method for producing the threaded connection for pipes or tubes. The threaded connection for pipes or tubes includes a pin and a box. The pin and the box include contact surfaces having threaded portions and unthreaded metal contact portions. The threaded connection for pipes or tubes includes, on at least one of the contact surfaces of the pin and the box, surface roughness, a Zn—Ni alloy plating layer, a Cu—Sn—Zn alloy plating layer and a solid lubricant coating layer. These are deposited from the contact surface side in the order of: surface roughness, the Zn—Ni alloy plating layer, the Cu—Sn—Zn alloy plating layer and the solid lubricant coating layer.

This invention provides a threaded connection for pipes or tubes having excellent misalignment resistance and high torque on shoulder resistance, and also having excellent corrosion resistance properties, as well as a method for producing the threaded connection for pipes or tubes. The threaded connection for pipes or tubes includes a pin and a box. The pin and the box include contact surfaces having threaded portions and unthreaded metal contact portions. The threaded connection for pipes or tubes includes, on at least one of the contact surfaces of the pin and the box, surface roughness, a Zn—Ni alloy plating layer, a Cu—Sn—Zn alloy plating layer and a solid lubricant coating layer. These are deposited from the contact surface side in the order of: surface roughness, the Zn—Ni alloy plating layer, the Cu—Sn—Zn alloy plating layer and the solid lubricant coating layer.

Provided are a lubricant whereby particles including a fluororesin can be dispersed and adhered to the surface of an object without the use of a fluorine-based oil as a base oil, an electrical contact having such a lubricant on the surface thereof, and a connector terminal and a wire harness provided with such an electrical contact. The present invention provides a lubricant containing a base oil and resin particles including a trifluoroethylene resin, the content of the resin particles being more than 10 mass % with respect to the mass of the base oil. The present invention also provides an electrical contact 1 which has a metal material as a base material 11 and which electrically contacts another electroconductive member 2, the electrical contact 1 having a layer 14 of the abovementioned lubricant on the surface of the base material. The present invention furthermore provides a connector terminal having the abovementioned electrical contact 1 in a portion thereof for making electrical contact with a mating connector terminal. The present invention also provides a wire harness having the connector terminal.

A polymeric material mixture comprising a fluorine-containing polymer, a siloxane polymer, and at least two polymer processing additives (PPA), wherein the at least two polymer processing additives have different chemistries. For example, there can be a flexible coextruded pipe for providing a protective housing for cables, fluids, sludge or solids, the pipe comprising a pair of telescopically related inner and outer layers, where said inner layer is lubricated with the polymeric material mixture.

A polymeric material mixture comprising a fluorine-containing polymer, a siloxane polymer, and at least two polymer processing additives (PPA), wherein the at least two polymer processing additives have different chemistries. For example, there can be a flexible coextruded pipe for providing a protective housing for cables, fluids, sludge or solids, the pipe comprising a pair of telescopically related inner and outer layers, where said inner layer is lubricated with the polymeric material mixture.

The present invention is directed at products and methods related to the manufacture of a bearing with a bearing liner and the bearing liner on its own. The bearing liner within the bearing includes a fabric with a bonding side polymerized resin composition dispensed on one side and a sliding side polymerized resin composition disposed on a second side that contains dispersed lubricant. The liner preparation also offers the ability for the liner to conform to a selected bearing surface.

The present invention is directed at products and methods related to the manufacture of a bearing with a bearing liner and the bearing liner on its own. The bearing liner within the bearing includes a fabric with a bonding side polymerized resin composition dispensed on one side and a sliding side polymerized resin composition disposed on a second side that contains dispersed lubricant. The liner preparation also offers the ability for the liner to conform to a selected bearing surface.

The present invention provides a class of halogen-containing synthetic base oils, and preparation method and use thereof. The synthetic base oils have introduced with halogen, especially fluorine, wherein the dipole motion of the halogen groups results in dipole interaction between the dipoles of other components and the base oil molecules of dipole-dipole and dipole-induced halogen (especially fluorine), and the interaction force is stronger and more localized than the dispersion force between the molecules of pure hydrocarbon synthetic oils, and thus the performance of the base oils is directly affected. It solved the problem of oil solubility of pure hydrocarbon synthetic oils, and also improved the properties of oxidation resistance and thermal stability.

Provided is a grease composition for a ball joint that can reduce the wear of a ball seat at a slide region and also has excellent compatibility with a dust cover. The grease composition for a ball joint comprises a base oil, a thickener, and an additive. The base oil contains an ethylene--olefin copolymer and the kinetic viscosity of the base oil at 40 C. is 2,000 to 6,000 mm.sup.2 /s. The additive contains a polar wax (e.g., monoamide wax or ester wax).

Provided is a grease composition for a ball joint that can reduce the wear of a ball seat at a slide region and also has excellent compatibility with a dust cover. The grease composition for a ball joint comprises a base oil, a thickener, and an additive. The base oil contains an ethylene--olefin copolymer and the kinetic viscosity of the base oil at 40 C. is 2,000 to 6,000 mm.sup.2 /s. The additive contains a polar wax (e.g., monoamide wax or ester wax).