A coating composition for forming a lubricating layer (3) on the surface of a base material (1) formed in a predetermined shape so as to exhibit improved sliding property to fluid substances, the coating composition containing, as a dispersion medium, a liquid (5) that is a component constituting the lubricating layer (3), and the dispersion medium containing solid particles (7) dispersed therein as a component constituting the lubricating layer (3). The lubricating layer (3) formed by using the coating composition exhibits more improved sliding property to fluid substances. The coating composition, therefore, can be favorably used for forming the lubricating layer (3) on the inner surfaces of the packing materials such as containers and lids.

The invention concerns a threaded portion of a tubular element for a threaded tubular connection having an axis of revolution, the portion comprising a threading extending over its outer or inner peripheral surface, and a first sealing surface on the peripheral surface, the first sealing surface being capable of producing metal-metal interference with a corresponding second sealing surface belonging to a complementary threaded portion. The threading and the first sealing surface are coated with a metallic anti-galling layer wherein zinc (Zn) is the major element by weight, the metallic anti-galling layer being at least partially coated with a lubricant layer comprising a resin and a dry solid lubricant powder dispersed in the resin.

The present invention is directed to compositions with solvent, wax and graphene. These compositions offer surprising benefits in reducing bicycle or motorbike chain lengthening, particularly in off road environments with high dirt and water levels such as during mountain biking or off-road biking. The invention is further directed to a method of preparing such compositions and to the use of such compositions on bicycle or motorbike chains.

A universal synthetic water displacement multi-purpose penetrating lubricant product-by-process with the capacity to protect metal surfaces against corrosion, with galvanic and electrolysis protection, while providing excellent lubrication properties. The lubricant actively penetrates the crystalline surface of the metal while exhibiting extreme pressure lubrication, non-migrating with lasting protection. The lubricant exhibits dielectric strength of over 14,000 volts, at the same time cleaning electrical contacts while reducing resistance and associated heat. A preferred embodiment comprises polymerized alpha-olefins, K-1 kerosene, and at least one base oil selected from the base oil group consisting of hydroisomerized high base oils and HT severe hydro-cracked base oils. Various combinations of other optional ingredients are also disclosed.

The present invention provides a steel wire rod having a lubricating coating film, which can achieve both workabilities such as wire drawability, spike property and ball ironing property, and corrosion resistance such as long-term rust prevention property; and a method for producing the same. Disclosed are a steel wire rod having a coating film containing no phosphorus, wherein the coating film includes a lower layer coating film composed of oxide and/or hydroxide of zirconium and having a film thickness of 1.0 to 200 nm, and an upper layer coating film containing silicon and tungsten, in order from a steel wire rod side, a mass ratio of tungsten/silicon being in a range of 1.3 to 18; and a method for producing the above steel wire rod, which includes bringing an aqueous chemical conversion treatment solution, which has a pH in a range of 2.5 to 5.0 and contains a water-soluble zirconium compound dissolved therein, into contact with a surface of a steel wire rod to form a lower layer coating film.

The invention concerns a threaded portion of a tubular element for a threaded tubular connection hiving an axis of revolution, the portion comprising a threading extending over its outer or inner peripheral surface, and a first sealing surface on the peripheral surface, the first sealing surface being capable of producing metal-metal interference with a corresponding second sealing surface belonging to a complementary threaded portion of a tube. The threading and the first sealing surface are coated with a metallic anti-corrosion and anti-galling layer wherein zinc (Zn) is tie major element by weight.

The invention concerns a threaded tubular connection for drilling or operating hydrocarbon wells, comprising a portion of a tubular element with a male end having an axis of revolution and provided with a first threading extending about the axis of revolution, said male end portion being complementary with a portion of a tubular element with a female end having an axis of revolution and provided with a second threading extending about the axis of revolution, said male and female end portions being capable of being connected by makeup, each of the male and female end portions further comprising a sealing surface with a metal-metal interference, wherein the threading and the sealing surface of one of the two, male or female, end portions are coated with a first metallic anti-corrosion and anti-galling layer wherein zinc (Zn) is the major element by weight, said first metallic anti-corrosion and anti-galling layer being coated with a first passivation layer, and the complementary threading and sealing surface of the male or female end are coated with a second metallic anti-galling layer wherein zinc (Zn) is the major element by weight, the second metallic anti-galling layer being at least partially coated with a lubricant layer comprising a resin and a dry solid lubricant powder dispersed in said resin.

A universal synthetic water displacement multi-purpose penetrating lubricant product-by-process with the capacity to protect metal surfaces against corrosion, with galvanic and electrolysis protection, while providing excellent lubrication properties. The lubricant actively penetrates the crystalline surface of the metal while exhibiting extreme pressure lubrication, non-migrating with lasting protection. The lubricant exhibits dielectric strength of over 14,000 volts, at the same time cleaning electrical contacts while reducing resistance and associated heat. A preferred embodiment comprises polymerized alpha-olefins, K-1 kerosene, and at least one base oil selected from the base oil group consisting of hydroisomerized high base oils and HT severe hydro-cracked base oils. Various combinations of other optional ingredients are also disclosed.

In a sliding shaft, an outer circumferential surface of a male shaft is coated with a resin coating layer formed by a fluidized bed powder coating method by using a powder coating material containing a base resin and an aliphatic compound. A steering device includes this sliding shaft as an intermediate shaft transmitting steering force.

A heat treatment oil composition is provided that suppresses the decrease of luster in a heat treatment of a metal material, and is capable of suppressing the increase of the number of second (characteristic number of second) until reaching the temperature where the vapor blanket stage ends with the lapse of time and the decrease of the kinetic viscosity with the lapse of time. The heat treatment oil composition contains (A) a base oil and (B) a vapor blanket breaking agent selected from one or more of a petroleum resin, a terpene resin, rosin, and derivatives thereof.