The invention provides a grease composition for use in an image forming apparatus, containing a thickener, a base oil and a lubricity improver, wherein the thickener is a lithium soap, the base oil is a synthetic hydrocarbon oil, the lubricity improver is a polyethylene oxide wax, and the image forming apparatus is equipped with a sliding member and a member for holding the sliding member which is driven to slide through the holding member via the grease composition, one of the sliding member or the holding member for the sliding member having a sliding surface formed from a metal, and the other having a sliding surface formed from a resin.

A ride vehicle that is configured to support a rider down a non-wet lubricated recreational slide is provided. The ride vehicle includes an elongate body with a flexible central core positioned between a top surface of the ride vehicle and at least one layer that includes one or more projections. The top surface may include at least on handle for gripping by a rider. The at least one layer forms a bottom surface of the ride vehicle that is configured to contact the non-wet lubricated recreational slide. A coefficient of friction between the at least one layer of the ride vehicle and the non-wet lubricated slide surface is within a range of between about 0.03 to about 0.2.

A ride vehicle that is configured to support a rider down a non-wet lubricated recreational slide is provided. The ride vehicle includes an elongate body with a flexible central core positioned between a top surface of the ride vehicle and at least one layer that includes one or more projections. The top surface may include at least on handle for gripping by a rider. The at least one layer forms a bottom surface of the ride vehicle that is configured to contact the non-wet lubricated recreational slide. A coefficient of friction between the at least one layer of the ride vehicle and the non-wet lubricated slide surface is within a range of between about 0.03 to about 0.2.

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 proportion of the wax in the film is 5 mass % or more and 70 mass % or less. Coating weight variation is 0.300 or less. Coating weight .sub.W of the film is 0.3 g/m.sup.2 or more.

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 proportion of the wax in the film is 5 mass % or more and 70 mass % or less. Coating weight variation is 0.300 or less. Coating weight .sub.W of the film is 0.3 g/m.sup.2 or more.

One aspect of the present invention relates to a sliding composition film or a method for producing a sliding composition, the sliding composition including an ethylene/-olefin/nonconjugated polyene copolymer (A); a propylene-based random copolymer (B1) and a propylene homopolymer (B2), having a melt flow rate of 0.1 to 4.0 g/10 min; high-density polyethylene (C1) having a density of 940 to 970 kg/m.sup.3 and a MFR of 0.1 g/10 min or less; ultra-high molecular weight polyethylene (C2) having an intrinsic viscosity [] of 10 to 40 dl/g (in decalin at 135 C.), an average particle size D.sub.50 of 22 to 50 m, and a density of less than 940 kg/m.sup.3; and a silicone compound (D) having a kinematic viscosity of 3,000 to 1,000,000 cSt (at 25 C.) in each predetermined content, in which the ethylene/-olefin/nonconjugated polyene copolymer (A) is at least partially cross-linked with a phenolic resin-based cross-linking agent.

One aspect of the present invention relates to a sliding composition film or a method for producing a sliding composition, the sliding composition including an ethylene/-olefin/nonconjugated polyene copolymer (A); a propylene-based random copolymer (B1) and a propylene homopolymer (B2), having a melt flow rate of 0.1 to 4.0 g/10 min; high-density polyethylene (C1) having a density of 940 to 970 kg/m.sup.3 and a MFR of 0.1 g/10 min or less; ultra-high molecular weight polyethylene (C2) having an intrinsic viscosity [] of 10 to 40 dl/g (in decalin at 135 C.), an average particle size D.sub.50 of 22 to 50 m, and a density of less than 940 kg/m.sup.3; and a silicone compound (D) having a kinematic viscosity of 3,000 to 1,000,000 cSt (at 25 C.) in each predetermined content, in which the ethylene/-olefin/nonconjugated polyene copolymer (A) is at least partially cross-linked with a phenolic resin-based cross-linking agent.

A self-lubricating liner is provided that has a matrix material and an ultra-high molecular weight polyethylene (UHMWPE) lubricant embedded in the matrix material. The matrix material and the lubricant are free of polyfluoroalkyl substances (PFAS) such as, but not limited to, polytetrafluoroethylene (PTFE). In some embodiments, the liner further includes a fabric base embedded in the matrix material.

A self-lubricating liner is provided that has a matrix material and an ultra-high molecular weight polyethylene (UHMWPE) lubricant embedded in the matrix material. The matrix material and the lubricant are free of polyfluoroalkyl substances (PFAS) such as, but not limited to, polytetrafluoroethylene (PTFE). In some embodiments, the liner further includes a fabric base embedded in the matrix material.