3M Innovative Properties Company

Claus Middendorf

Tien T Wu

Ulrich E Kunze

Harald H Krieg

Lahoussaine Lalouch

Knut Schumacher

Gary F Howorth

Javier E Gonzalez

Jean Le Normand

Kerstin C Rosen

Juergen Strasser

Shailendra B Rathod

Patrick Welter

Christoph Rochaz

Nicole Gervers

A mounting mat () for an exhaust gas treatment device (), the mounting mat () comprises two opposing main surfaces () and at least one edge surface () extending between the main surfaces; at least one portion of the at least one edge surface comprises a protection coating comprising inorganic particles (), and the inorganic particles have an average diameter of at least 1 &#x3bc;m.

Mounting mat for an exhaust gas treatment device

The present invention provides a mat comprising a layer having a mixture of long and short fibers wherein said short fibers have a length of not more than about 13 mm and wherein said long fibers have a length of at least about 20 mm and wherein the amount of said short fibers is at least about 3% by weight based on the total weight of said mixture of long and short fibers.

Mat having long and short inorganic fibers

The present invention provides a mounting mat for mounting a pollution control element or monolith in a pollution control device, said mounting mat comprising a layer having a mixture of long and short fibers wherein said short fibers have a length of not more than about 13 mm and wherein said long fibers have a length of at least about 20 mm and wherein the amount of said short fibers is at least about 3% by weight based on the total weight of said mixture of long and short fibers.

Mounting mat for a pollution control device

The invention refers to the use of lubricants in a mounting mat, wherein the mounting mat is made for mounting a pollution control element into a housing, to reduce the cold peak pressure or compression of the mounting mat, the mounting mat comprising:

Use of a lubricant in a mounting mat, method for making such a mat and mounting mat

The invention refers to the use of lubricants in a mounting mat, wherein the mounting mat is made for mounting a pollution control element into a housing, to reduce the cold peak pressure or compression of the mounting mat, the mounting mat comprising: &#x2014;a non-woven mat of inorganic fibers, wherein&#x2014;the lubricants are distributed in the mat, and wherein&#x2014;the lubricants belong to a group consisting of: &#x2014;saturated hydrocarbons (linear and/or branched and/or cyclic, &#x2014;olefinically unsaturated hydrocarbons (linear and/or branched and/or cyclic), &#x2014;fatty alcohols and fatty acids (linear and/or branched and saturated and/or olefinically unsaturated),&#x2014;carboxylic acid esters&#x2014;carbonic acid esters and/or &#x2014;silicone oils and/or organofunctional silanes, silioxanes.

The present invention relates to a mounting mat for mounting a pollution control device in a catalytic converter, the mounting mat comprising a non-woven mat of inorganic fibers having distributed therein inorganic particles having an average diameter of 1 nm to 100 nm and wherein the mounting mat is free of organic binder or contains organic binder in an amount of not more than 5% by weight, based on the total weight of the mounting mat. The invention further relates to a pollution control device including the mounting mat and to a method of making the mounting mat.

Mounting mat including inorganic nanoparticles and method for making the same

A method of making mounting mats comprising the steps of: (i) supplying inorganic fibers through an inlet of a forming box having an open bottom positioned over a forming wire to form a mat of fibers on the forming wire, the forming box having rollers for breaking apart clumps of fibers and an endless belt screen; (ii) capturing clumps of fibers on the endless belt; (iii) conveying captured clumps of fibers on the endless belt so as to enable captured clumps to release from the belt and be broken apart by the rollers; (iv) transporting the mat of fibers out of the forming box by the forming wire; and (v) compressing and restraining the mat of fibers to thereby obtain a mounting mat having a desired thickness suitable for mounting a pollution control element in a pollution control device.

Method of making mounting mats for mounting a pollution control panel

The present invention provides a mounting mat () for mounting a pollution control element () or monolith in a pollution control device (), said mounting mat comprising a layer having a mixture of long and short fibers wherein said short fibers have a length of not more than about 13 mm and wherein said long fibers have a length of at least about 20 mm and wherein the amount of said short fibers is at least about 3% by weight based on the total weight of said mixture of long and short fibers.

The present invention relates to a fiber mat, preferably a non-intumescent, polycrystalline, needle-punched or stitchbonded aluminia-silica fiber mat, which contains an organosilicon compound. The fiber mat comprises a fiber blanket which is essentially free of organic binder and which is impregnated with an organosilicon compound selected from the group consisting of siloxane compounds, alkoxy group-containing silanes, hydrolysates and condensates of these compounds, and combinations thereof. In a further embodiment the fiber mat comprises a high friction coating on at least the side of the mat which is to be brought in contact with a pollution control element of a pollution control device. Furthermore, the present invention relates to a pollution control device containing such a fiber mat.

Fiber mat containing an organosilicon compound and pollution control device using it

The present invention relates to a fiber mat, preferably a non-intumescent, polycrystalline, needle-punched or stitch-bonded aluminia-silica fiber mat, which contains an organosilicon compound. The fiber mat comprises a fiber blanket which is essentially free of organic binder and which is impregnated with an organosilicon compound selected from the group consisting of siloxane compounds, alkoxy group-containing silanes, hydrolysates and condensates of these compounds, and combinations thereof. In a further embodiment the fiber mat comprises a high friction coating on at least the side of the mat which is to be brought in contact with a pollution control element of a pollution control device. Furthermore, the present invention relates to a pollution control device containing such a fiber mat.

Mounting materials for pollution control devices comprising biosoluble fibers, heat treated silica fibers having a silica content of greater than about 67 percent by weight (pbw) based on a total weight of the fibers, and intumescent material, with an optional binder component, are disclosed. Methods for making and using the materials are also disclosed.

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Neuss, Germany

Claus Middendorf