3m Innovative Properties Company

Ian R Harding

Joseph C Peisert

Stephen M Sanocki

Roger L Langer

Ryan C Shirk

Loyd R Hornback, Iii

Carl J Braunreiter

Kevin Kaczorek

The invention provides a flexible and self-supporting insulating end cone liner comprising resilient and compressible intumescent or non-intumescent material molded into a single, continuous piece having a three dimensional cone shape, with the insulating material comprising inorganic fibers and an organic binder, and a pollution control device that includes such an end cone liner.

Self-supporting insulating end cone liner and pollution control device

A thin-walled structure (e.g., an end cone insulator () and/or a mounting mat) () comprising insulating material suitable for insulating portions (e.g., an end cone) of a pollution control device () and/or mounting material suitable for mounting a pollution control element in a pollution control device () (e.g., a catalytic element in a catalytic converter, a filter element in a diesel or gasoline engine exhaust filter, etc.). The thin-walled structure can comprise an insulating material and/or mounting material in the form, for example, of a sheet, mat () or three-dimensional thin walled structure (e.g., a single piece or multiple piece three dimensional end cone insulator). () An intermediate adhesive () (e.g., a heat activated adhesive, hot melt adhesive and/or adhesive-like thermoplastic material) is bonded to at least one major surface of the thin-walled structure so as to coat and penetrate into the at least one major surface. The intermediate adhesive () at least mechanically bonds to the thin-walled structure. A pressure sensitive () adhesive is bonded to the intermediate adhesive () and used to secure the thin-walled structure in place in the pollution control device ().

System for securing the end cone or mounting mat of a pollution control device

The invention provides a preform insulating end cone suitable for forming the end cone of a pollution control device. The preform insulating end cone includes a cone shaped intumescent or non-intumescent sheet material. The sheet material has a plurality of slits enabling the sheet material to be cone shaped. A shape retaining element is in intimate contact with the intumescent sheet material. The shape retaining element enables the intumescent sheet material to maintain a cone shape. The invention also provides methods of making preform insulating end cones of the invention.

Method of making a polluction control device and a self-supporting insulating end cone

Compressible preform insulating liner

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Mahtomedi, MN, United States of America

Ian R Harding