Method of manufacturing a composite shoddy
AssigneeInternational Automotive Components Group North America, Inc.
InventorsJean-Jacques Katz, Kenneth R. Parrish, Theodore J. Peterson, Barry R. Wyerman
Life of this patent
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Abstract
The present invention relates to a composite shoddy for use in a vehicle interior. To this end, the composite shoddy of the present invention includes an organic material having a predetermined density defining shoddy bottom layer and a scrim material having a predetermined density defining a scrim top layer. The scrim top layer is adapted to operatively engage a surface material and accommodate movement of a surface material in the shear direction. The composite shoddy further includes a bituminous mastic material having a predetermined density defining a mastic middle layer. The mastic middle layer is disposed between the shoddy bottom layer and the scrim top layer.
Claims6
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.
Dependencies are inferred from the claim text.