Patent ID: 8449701
Filing Date: 2013-05-28
Classification: B60R,B62D,G10K,Y10T

Abstract:
1. An uncured acoustic absorbing member comprising a thermally inert carrier and applied to the carrier a thermally expandable material which cures and expands to at least 400% of its initial volume when heated to a temperature in the range of from 120 to 250° C. to form an expanded foam, wherein the carrier includes a wall portion having opposing surfaces, at least one of which opposing surfaces includes raised areas which divide said surface into substantially discontinuous sections that each have a surface area of from 0.25 to 400 mm and wherein at least a portion of the thermally expandable material is applied to at least one surface of the carrier within said substantially discontinuous sections defined by said raised areas to form discontinuous sections of said thermally expandable material on said surface of the carrier.