CAR BODY PANEL MULTILAYER REINFORCED VIBRATION-AND-NOISE KILLING COATING Russian patent published in 2013 - IPC B60R13/08 B32B5/16 G10K11/16 

FIELD: transport.

SUBSTANCE: invention relates to car body panel multilayer reinforced vibration-and-noise killing coatings to reduce structural noise of car body thin-sheet panels. Said panel consists of reinforcing element, viscoelastic layer, adhesion interlayer, and adhesion mounting later. Said layers make modular composition is composed of reinforcing layer base to carry two sets of isolated flat-sheet viscoelastic preset size and shape interlayers arranged in tile manner to make air gap between opposite end surface. Note here that said viscoelastic interlayer may feature triangular, quadrangular or regular polyhedral shape and identical thickness. Every said viscoelastic interlayer is made from, at least, two types of viscoelastic vibration-damping substances with different mechanical properties. Note here that ordered position provides for staggered surface arrangement. Every overall dimension of face surfaces of every said interlayer is, at least, 5 times larger than thickness of viscoelastic layer while surface area of projection of face surface of every interlayer on rear surface of reinforcing layer makes 2,5×10^-6…1×10^-2 m².

EFFECT: better vibration-and-noise killing properties.

7 cl, 10 dwg