Abstract:
The present invention provides a grease composition or a lubricating oil composition which is capable of effectively preventing hydrogen brittleness-caused peeling from occurring on a rolling surface of a rolling bearing, is excellent in durability in a high temperature and speed operation, and can be used for a long time. A grease-packed bearing (1) has an inner ring (2), an outer ring (3), and a plurality of rolling elements (4). A sealing member (6) for sealing a grease composition (7) is provided at openings (8a) and (8b) disposed at both axial ends of the inner ring (2) and the outer ring (3). The grease composition (7) includes a base grease composed of a base oil and a thickener and an additive added to the base grease. The additive contains at least one compound selected from among plant-derived polyphenolic compounds and compounds formed by decomposition thereof. The above-described compounds include tannin, gallic acid, ellagic acid, chlorogenic acid, caffeic acid, curcumin, quercetin, and quinic acid.
Abstract:
The present invention is to provide a device capable of having an easy production process and achieving a long lifetime. A device comprising a substrate, two or more electrodes facing each other disposed on the substrate and a positive hole injection transport layer disposed between two electrodes among the two or more electrodes, wherein the positive hole injection transport layer contains a transition metal compound-containing nanoparticle comprising a transition metal compound containing one or more kinds selected from the group consisting of a transition metal carbide oxide, transition metal nitride oxide and transition metal sulfide oxide, wherein a protecting agent having a linking group and a hydrophobic organic group is connected to the transition metal compound by the linking group.
Abstract:
The present invention is to provide a device capable of having an easy production process and achieving a long lifetime. A device comprising a substrate, two or more electrodes facing each other disposed on the substrate and a positive hole injection transport layer disposed between two electrodes among the two or more electrodes, wherein the positive hole injection transport layer comprises a transition metal-containing nanoparticle containing at least a transition metal compound including a transition metal oxide, a transition metal and a protecting agent, or at least the transition metal compound including the transition metal oxide, and the protecting agent.
Abstract:
The present invention provides a rolling bearing which is excellent in high-temperatures and high-speed durability and quietness, is capable of effectively preventing hydrogen brittleness-caused peeling from occurring on a rolling surface thereof, and has a low environmental load. A rolling bearing (1) is constructed of an inner ring (2) having a rolling surface on its peripheral surface, an outer ring (3) having a rolling surface on its inner peripheral surface, a plurality of rolling elements (4) disposed between both rolling surfaces, and a cage (5) retaining the rolling elements (4). The inner ring (2), the outer ring (3), the rolling elements (4) or the cage (5) is a metal-made bearing member. Film-coating treatment is conducted on a sliding surface or a rolling surface of at least one of these metal-made bearing members with the plant-derived polyvalent alcohol compounds such as curcumin, quercetin, chlorogenic acid or the like.
Abstract:
It is an object of the present invention to provide a rolling bearing in which efficacy provided by an auxiliary agent for grease can be maintained for a long time to extend its life and a seal for the rolling bearing. A rolling bearing (1) has an inner ring (2); an outer ring (3); a plurality of rolling elements (4) interposed between the inner ring (2) and the outer ring (3); a retainer (5) retaining the rolling elements (4); and a seal (6) provided at an open portion, of the inner ring (2) and the outer ring (3), which is disposed at both axial ends thereof. The rolling bearing (1) is lubricated with a grease (8) enclosed in a space, inside the bearing, which is constructed of the inner ring (2), the outer ring (3), the retainer (5), and the seal (6). A mixture (7) of an auxiliary agent for the grease and a resin is fixed to a surface, of the seal (6) (one of the members constructing the space inside the bearing), which is disposed at a side of the space inside the bearing.
Abstract:
Disclosed is a device material for a hole injection transport layer. A fluorine-containing organic compound is attached to the surface of a transition metal-containing nanoparticle or nanocluster which contains at least a transition metal oxide. Also disclosed are a device and an ink for a hole injection transport layer, the device and ink including the device material each, and a method for producing the device.
Abstract:
Disclosed is a device material for a hole injection transport layer. A fluorine-containing organic compound is attached to the surface of a transition metal-containing nanoparticle or nanocluster which contains at least a transition metal oxide. Also disclosed are a device and an ink for a hole injection transport layer, the device and ink including the device material each, and a method for producing the device.
Abstract:
The present invention is to provide a device capable of having an easy production process and achieving a long lifetime. A device comprising a substrate, two or more electrodes facing each other disposed on the substrate and a positive hole injection transport layer disposed between two electrodes among the two or more electrodes, wherein the positive hole injection transport layer comprises a transition metal-containing nanoparticle containing at least a transition metal compound including a transition metal oxide, a transition metal and a protecting agent, or at least the transition metal compound including the transition metal oxide, and the protecting agent.
Abstract:
The present invention provides a film formation method capable of forming a favorable amorphous carbon film under a low vacuum by using a bipolar-type PBII apparatus and the amorphous carbon film to be produced by the film formation method. The film formation method is carried out to form the amorphous carbon film under a low vacuum (1000 to 30000 Pa) by using a power source for the bipolar-type PBII apparatus. There are provided inside a chamber (1) a power source side electrode (3) connected to a power source (6) for the PBII apparatus and a grounding side electrode (4) opposed to the power source side electrode (3). A base material (2) is disposed on one of the power source side electrode (3) and the grounding side electrode (4). Plasma of a noble gas and that of a hydrocarbon-based gas are generated between the base material (2) and the electrode where the base material (2) is not disposed to form the amorphous carbon film on a surface of the base material (2).
Abstract:
The present invention provides a grease composition or a lubricating oil composition which is capable of effectively preventing hydrogen brittleness-caused peeling from occurring on a rolling surface of a rolling bearing, is excellent in durability in a high temperature and speed operation, and can be used for a long time. A grease-packed bearing (1) has an inner ring (2), an outer ring (3), and a plurality of rolling elements (4). A sealing member (6) for sealing a grease composition (7) is provided at openings (8a) and (8b) disposed at both axial ends of the inner ring (2) and the outer ring (3). The grease composition (7) includes a base grease composed of a base oil and a thickener and an additive added to the base grease. The additive contains at least one compound selected from among plant-derived polyphenolic compounds and compounds formed by decomposition thereof. The above-described compounds include tannin, gallic acid, ellagic acid, chlorogenic acid, caffeic acid, curcumin, quercetin, and quinic acid.