Patent ID: 6177173
Filing Date: 2001-01-23
Classification: B32B,F16F,Y10T

Abstract:
A laminate article comprising:a first substrate layer and a second substrate layer;at least one layer of vibration damping material comprising a viscoelastic material positioned between said first and second substrate layers;optionally one or more additional substrate layers positioned between said first and second substrate layers;optionally one or more bonding material layers bonded between a substrate layer and a vibration damping layer, wherein the storage modulus of each bonding material layer is higher than the storage modulus of the viscoelastic material contained in a vibration damping layer to which it is bonded;wherein the storage modulus of each substrate layer is greater than that of the viscoelastic material in any vibration damping material layer with which it is in contact;wherein the laminate article has at least one through hole extending completely therethrough, wherein an area of the article which defines at least one through hole is welded via weld(s) such that the first substrate layer is welded to the second substrate layer at the through hole.