Patent ID: 7264685
Filing Date: 2007-09-04
Classification: B32B,B60R,Y10T

Abstract:
1. A method of manufacturing a composite shoddy for use as underlayment for a surface material in automotive applications comprising the steps of: providing an organic base material defining a shoddy bottom layer having an engaging surface; providing a primarily bituminous mastic material defining a mastic middle layer having a first surface and a second surface opposite said first surface; bonding said engaging surface of said shoddy bottom layer to said first surface of said mastic middle layer; providing a scrim material defining a scrim top layer having a mastic contact surface and a receiving surface opposite said mastic contact surface; and bonding said second surface of said mastic middle layer to said mastic contact surface of said scrim top layer to form a tri-partite composite shoddy having a mastic middle layer disposed between a shoddy bottom layer and a scrim top layer for use in automotive applications, wherein said receiving surface of said scrim top layer is adapted to operatively engage a class-B side of a non-carpeted surface material.