Noise attenuating trim part for a vehicle
AssigneeAutoneum Management AG
InventorYann Berger
Life of this patent
Estimating the term…
Abstract
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/dm3, 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.
Claims14
A noise attenuating trim part for a vehicle, comprising:
- a pile layer;
- a backing layer;
- a bonding mass layer is bonded to the pile layer and the backing layer;
- wherein the bonding mass layer comprises at least one thermoplastic elastomeric polyolefin based compound material (TPO) with a filler content of at least 55% by weight of the overall bonding mass layer;
- wherein the bonding mass layer has a density of between 1.4 and 1.75 kg/dm3, a viscosity of less than 50,000 mPa·s;
- wherein the bonding mass layer is adjacent to the pile layer and partly penetrated into a lower area of the pile layer, thereby binding fibers, filaments, yarn, and/or tufts of the pile layer;
- and
- wherein the TPO consists of a first component consisting of at least one of a partially amorphous polyolefin, and a second component consisting of a PP-Ethylene with a random ethylene repeat distribution having a specific density of less than 0.87 kg/dm3.
Dependencies are inferred from the claim text.