Provided is a coated steel sheet having excellent press formability. The coated steel sheet includes a base steel sheet and, on at least one side of the base steel sheet, a film containing organic resin and wax. The organic resin is at least one selected from the group consisting of acrylic resins, epoxy resins, urethane resins, phenolic resins, vinyl acetate resins, and polyester resins. The wax is polyolefin wax having a melting point that is 100 C. or more and 145 C. or less and an average particle size that is 3.0 m or less. The film has a specified distribution of the wax. coating weight of the film per side is 0.3 g/m.sup.2 or more.

An agent for forming a solid lubricating coating film on a thread portion of oil country tubular goods, in which a binder resin contains a prepolymer and a curing agent, the prepolymer is formed of one or more epoxy resins, 70 parts by weight or more of the prepolymer is contained with respect to 100 parts by weight of the binder resin, the epoxy resin constituting the prepolymer has an epoxy equivalent of 100 or more and 500 or less, the solid lubricant contains boron nitride (BN) in an amount of 80% by weight or more, BN has an average particle size of 10 m or less, and a total weight of the solid lubricant is 0.1 times or more and two times or less a total weight of the binder resin.

A composition has a high content of saturated or unsaturated isoparaffinic hydrocarbons having 12-24 carbon atoms and a polyalkyl (meth)acrylate. A method prepares such composition and the composition can be used to raise the flash point of hydraulic fluids where a good low temperature flow is important, e.g. compressor oils, shock absorber fluids, power steering fluids and, central hydraulic fluids.

Embodiments herein relate to polyacrylic acid containing lubricious coatings for medical devices. In an embodiment, a lubricious coated medical device is included having a substrate and a first layer disposed over the substrate. The first layer can include a photoreactive polyvinylpyrrolidone, a non-photoreactive polyvinylpyrrolidone, and a crosslinking compound. A second layer can be disposed over the first layer, the second layer can include a poly(acrylic acid), and a non-photoreactive polyvinylpyrrolidone. The non-photoreactive polyvinylpyrrolidone of the second layer forms a complex with the poly(acrylic acid) of the second layer. The non-photoreactive polyvinylpyrrolidone of the second layer has a concentration existing as a gradient through a thickness of the second layer with a lower concentration at an outer surface of the second layer than at an inner surface of the second layer. Other embodiments are also included herein.

Embodiments of the disclosure include lubricious coatings. In an embodiment the disclosure includes a lubricious coating for a medical device including first and second coated layers. The first coated layer is between the second coated layer and the device surface and includes a vinyl pyrrolidone polymer and a photo reactive group. The second coated layer is in direct contact with the first coated layer and is a top coating that includes an acrylic acid polymer. The second coated layer can optionally include photoreactive groups. The coating was found to have a very low number of particulates (e.g., 10 m or greater) which is very desirable for in vivo use.

Embodiments of the disclosure include lubricious coatings. In an embodiment the disclosure includes a lubricious coating for a medical device including first and second coated layers. The first coated layer is between the second coated layer and the device surface and includes a vinyl pyrrolidone polymer and a photo reactive group. The second coated layer is in direct contact with the first coated layer and is a top coating that includes an acrylic acid polymer. The second coated layer can optionally include photoreactive groups. The coating was found to have a very low number of particulates (e.g., 10 m or greater) which is very desirable for in vivo use.