A mass damper for a refrigerant pipe is configured to insulate vibration and noise of the refrigerant pipe for the flow of a refrigerant circulating in a vehicle air conditioner system and a mass damper for a vehicle air conditioner system is configured to prevent an external circumferential surface of a casing from cracking due to thermal deformation.

Provided is a functional laminate including a porous intermediate layer having air permeability laminated between a porous surface layer and a resin foamed layer, the porous intermediate layer having an affinity to a foaming resin forming the resin foamed layer.

Disclosed is a rigid and monolithic composite under-vehicle protector containing phenolic felt and a polyurethane material applied by spraying on the phenolic felt. A production method for the under vehicle protector is also disclosed.

Disclosed is a rigid and monolithic composite under-vehicle protector containing phenolic felt and a polyurethane material applied by spraying on the phenolic felt. A production method for the under vehicle protector is also disclosed.

In a soundproof member 10 including a polyurethane foam 11 and disposed apart from an engine E on a vehicle interior side of a dash panel 50 partitioning a space into an engine room having the engine E as a sound source and a vehicle interior, the polyurethane foam 11 has a surface layer 12 on at least a part of the surface thereof, a one side surface of the polyurethane foam 11 directly facing the vehicle interior side of the dash panel 50 has at least a surface layer 12A in an open cell state or a core, and a surface layer 12B of the other side surface opposite to the one side surface is a surface layer in a closed cell state.

In a soundproof member 10 including a polyurethane foam 11 and disposed apart from an engine E on a vehicle interior side of a dash panel 50 partitioning a space into an engine room having the engine E as a sound source and a vehicle interior, the polyurethane foam 11 has a surface layer 12 on at least a part of the surface thereof, a one side surface of the polyurethane foam 11 directly facing the vehicle interior side of the dash panel 50 has at least a surface layer 12A in an open cell state or a core, and a surface layer 12B of the other side surface opposite to the one side surface is a surface layer in a closed cell state.

A vibration reduction device having an acoustic meta structure mounted to a vehicle body and configured to block a structure-borne noise transmitted through the vehicle body may include a plurality of unit structures arranged at a predetermined interval therebetween, wherein each of the unit structures includes frame mounted to the vehicle body and configured to separate a predetermined space into a predetermined number of separate sections formed by walls of the frame; and a vibrator formed at a corner portion of each of the separate sections and each of which has a natural frequency to block a vibration transmitted from the vehicle body through the frame.

Noise attenuating trim part for a vehicle comprising a pile layer, a bonding mass layer and a backing layer whereby the bonding mass layer is bonded to the adjacent layers whereby the bonding mass layer is comprising at least thermoplastic elastomeric polyolefin based compound material (TPO) with a filler content of at least 55%, and whereby

the bonding mass layer has a density of between 1.4 and 1.75 kg/dm.sup.3, a viscosity of less than 50.000 mPa.s and a MFI above 250 and whereby the bonding mass layer is adjacent the pile layer and partly penetrated into the lower area of the pile thereby binding the fibers and/or filaments and/or the tufts within the pile.

There are provided microfibers that generate less formaldehyde and acetaldehyde and have a favorable fiber openness, a fiber molded body using the microfibers, and a method for producing the same. The method for producing a fiber molded body of the present invention is a method for producing a fiber molded body comprising molding of a fiber mixture, wherein the fiber mixture comprises microfibers, wherein the content of the microfibers in the fiber mixture is 5 mass % or more, wherein, in the microfibers, an amount of an oil adhered is 0.1 to 1 mass %, a total amount of ethylene oxide units and propylene oxide units generated is 0.01 to 0.5 mass %, and a single fiber fineness is 0.01 to 0.5 dtex.

There are provided microfibers that generate less formaldehyde and acetaldehyde and have a favorable fiber openness, a fiber molded body using the microfibers, and a method for producing the same. The method for producing a fiber molded body of the present invention is a method for producing a fiber molded body comprising molding of a fiber mixture, wherein the fiber mixture comprises microfibers, wherein the content of the microfibers in the fiber mixture is 5 mass % or more, wherein, in the microfibers, an amount of an oil adhered is 0.1 to 1 mass %, a total amount of ethylene oxide units and propylene oxide units generated is 0.01 to 0.5 mass %, and a single fiber fineness is 0.01 to 0.5 dtex.