Abstract: The present disclosure relates to an organic electroluminescent compound and an organic electroluminescent device comprising the same. By comprising the compound according to the present disclosure, it is possible to produce an organic electroluminescent device having improved driving voltage, power efficiency, and/or lifetime properties compared to the conventional organic electroluminescent devices.

Abstract: A foldable ramp according to an embodiment is configured to assist a movement of means of transportation which may be used by disabled people, such as a wheelchair. The foldable ramp may be used as a stand for a billboard, and the foldable ramp may be unfolded to be used as a ramp.

Abstract: A strip of tire ply stock is reinforced with steel cords wherein the steel cords are constructed of high strength wire filament having at least a tensile strength of −2000×D+4400 MPa where D is the filament diameter in mm. Tires are constructed with the ply stock in the belt and/or carcass.

Abstract: A strip of tire ply stock is reinforced with steel cords wherein the steel cords are constructed of high strength wire filament having at least a tensile strength of −2000×D+4400 MPa where D is the filament diameter in mm. Tires are constructed with the ply stock in the belt and/or carcass.

Abstract: A strip of tire ply stock is reinforced with steel cords wherein the steel cords are constructed of high strength wire filament having at least a tensile strength of −2000×D+4400 MPa where D is the filament diameter in mm. Tires are constructed with the ply stock in the belt and/or carcass.

Abstract: Tires using high tensile reinforcement with value of at least 1240 N(280 lbs) for U+T type cord and at least 2000 N(450 lbs) for bunched type cord.

Abstract: A strip of tire ply stock is reinforced with steel cords wherein the steel cords are constructed of high strength wire filament having at least a tensile strength of −2000×D+4400 MPa where D is the filament diameter in mm. Tires are constructed with the ply stock in the belt and/or carcass.

Abstract: Steel reinforcing cords (36) having four or more filaments (38, 40, 42 and 44) in two groups, one twisted and the other untwisted with a filament tensile strength TS equal to K.sub.1 -K.sub.2 D where K.sub.1 =4080N/mm.sup.2, and D is a filament diameter in mm to form cords with a break load equal to N(720.40D.sup.2 -352.6D.sup.3 ; CE is the cord efficiency, D is the filament diameter in millimeters and N is the number of filaments.

Abstract: This invention reveals steel alloys for use in manufacturing reinforcing wires for rubber products, such as tires. The steel filaments made with such steel alloys have an outstanding combination of strength and ductility. The steel alloys of this invention can be manufactured into filaments having a tensile strength in the range of 4000 MPa to 5000 MPa. Additionally, these can be patented in a low-cost process due to their having a very fast rate of isothermal transformation. This allows the steel in the steel wire being patented to transform from a face-centered cubic microstructure to an essentially body-centered cubic microstructure within a very short period. This invention more specifically discloses a steel alloy composition which is particularly suitable for use in manufacturing reinforcing wire for rubber products which consists essentially of (a) iron, (b) about 1.05 to about 1.7 weight percent carbon, (c) about 0.2 to about 0.8 weight percent manganese, (d) about 0.1 to about 0.

Abstract: A pneumatic radial tire includes at least two belt plies reinforced with steel monofilaments inclined at an angle of 10.degree. to 30.degree. with respect to the equatorial plane of the tire, the monofilaments being laid at an end count ranging from 25 to 60 ends per inch and having a diameter of from 0.25 to 0.40 mm, a tensile strength of at least 4080 MPa-(2000.times.D).times.95 percent where D is the filament diameter in millimeters and a fatigue resistance of at least 3500 cycles as measured by the three-roll bending fatigue test. Preferably, the filament diameter ranges from 0.30 to 0.35 mm, the tensile strength of each monofilament is at least 4400 MPa-(2000.times.D).times.95 percent and the fatigue resistance ranges from 3500 to 6000 cycles.

Abstract: Tires using high tensile reinforcement with values of at least 1240 N (280 lbs) for U+T type cord and at least 2000 N (450 lbs) for bunched type cord.