The invention relates to a dispersion containing (A) at least one compound of the formula (I), wherein R.sup.1 denotes H, C.sub.1-C.sub.4 alkyl, CH.sub.2CH.sub.2OH or CH.sub.2CH(CH.sub.3)OH, (B) a polymeric binder and (C) water.

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In an undercover structure according to the present invention, a first cover part that is a lowermost part of an undercover has a first rear end positioned ahead of a front wheel axle. Further, a curved part with a predetermined curvature is formed at the first rear end of the first cover part in a side view. This generates a strong negative pressure in a region ahead of the front wheel axle 21. Accordingly, the flow rate of air flowing to each wheelhouse 23 decreases (the flow rate of the airflow between a road and a vehicle generated along the bottom surface of the first cover part 15a of the undercover 15 increases). This causes an attraction force that attracts the vehicle to a road surface to act on a vehicle body of the vehicle, thereby making traveling stability more excellent.

A transfer cooling structure of a vehicle is provided, the vehicle including a power source, a transmission, and a transfer device provided with a torque-distribution-control friction clutch, disposed in the order from forward of the vehicle. The structure includes a floor provided to the vehicle and having a tunnel part configured to cover a transmission case of the transmission and a transfer case of the transfer device from above, an insulator attached below the tunnel part to cover the transmission case and the transfer case while having a gap with respect to the transmission case and the transfer case, and a cooling acceleration part provided to the insulator protruding toward the transfer case from the floor side.

A hybrid sensor assembly is configured to be mounted on a vehicle to sense structure borne and airborne noises generated as the vehicle travels over the roads. The sensor assembly includes a housing having a circuit board mounted therein, an accelerometer mounted on the circuit board, a microphone mounted on the circuit board, an acoustic port through the housing and in communication with the microphone, and an acoustic fabric attached to the housing over the port. An acoustic shield covers the acoustic port and substantially deters the entry of fluid and debris into the acoustic port.

A heat shield for a motor vehicle includes an elongated planar shield body for separating an exhaust pipe and a fuel tank of the motor vehicle, the shield body extending longitudinally along a longitudinal axis between the exhaust pipe and the fuel tank, the shield body having a generally concave surface extending from the axis to first and second vertical walls along first and second edges of the shield body, a forward attachment portion for attaching the shield body to a frame of the motor vehicle longitudinally forward of the fuel tank, a rearward attachment portion for attaching the shield body to the frame of the motor vehicle longitudinally rearward of the fuel tank, and a water escape port in the first vertical wall.

Presented are multilayer, fiber-reinforced impact protection structures with honeycomb-core or corrugated-layer designs, methods for making/using such structures, and vehicles with traction battery packs supported on skid plates fabricated from such structures. A multilayer impact protection structure includes a first layer with continuous fibers embedded in a polymeric matrix, and a second layer that is attached to the first layer and includes an elastomeric polymer. A third layer, which is attached to one side of the first layer opposite that of the second layer, includes a fiber-reinforced polymer honeycomb and/or corrugated structure. An optional fracture detection circuit is attached to the first or third layer, and is configured to detect a break in the impact protection structure. The corrugated structure may include multiple reinforcement ribs that are interposed within and substantially orthogonal to a series of mutually parallel, elongated ridges. Comparatively, the honeycomb structure includes a lattice of adjoining polygonal cells.

A rocker molding includes a vertical wall portion provided under a rocker in a vehicle upper-lower direction, a bottom wall portion extending from a lower end portion of the vertical wall portion to an outer side in a vehicle width direction, and a side wall portion extending upwardly in the vehicle upper-lower direction from an outer end portion of the bottom wall portion in the vehicle width direction. A sound absorbing material is provided in a penetrating portion that is provided in a grange from a portion of the vertical wall portion to an inner portion of the bottom wall portion in the vehicle width direction.

A noise reflector configured to reduce engine sound passing below a side member of a vehicle and leaking laterally from the vehicle. The noise reflector is disposed on a lower side of a lower surface of the side member, has a sound reflective surface tilted from a vertical direction to be directed downward as being gradually laterally distant from an engine, and is configured to reflect downward engine sound received by the sound reflective surface and cause the engine sound thus reflected to interfere with engine sound passing below the side member.

A sound absorbing structure includes a vehicle structure having a surface and at least one acoustic scatterer coupled to the surface. The at least one acoustic scatterer has a resonant frequency. The at least one acoustic scatterer has an opening and at least one channel. The at least one channel has a channel open end and a channel terminal end, the channel open end being in fluid communication with the opening. The sound absorbing structure may be configured to absorb sound waves at a certain frequency generated by a noise source. The certain frequency may be substantially similar to the resonant frequency of the at least one acoustic scatterer.

The present invention relates to non-woven fabric with enhanced hardness and sound absorption, more specifically to non-woven fabric that includes two or more kinds of polyester-based materials and non-circular cross-section fiber, and thus has enhanced hardness and sound absorption as well as improved formability, and that can be applied for an automotive undercover.