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US 11,466,605 B2Granted
Mounting mat for an exhaust gas treatment device
Assignee3M Innovative Properties Company
InventorsUlrich E. Kunze, Claus Middendorf
Life of this patent
Estimating the term…
Abstract
A mounting mat (4) for an exhaust gas treatment device (10), the mounting mat (4) comprises two opposing main surfaces (5, 6) and at least one edge surface (7) extending between the main surfaces; at least one portion of the at least one edge surface comprises a protection coating comprising inorganic particles (15), and the inorganic particles have an average diameter of at least 1 μm.
Claims18
A mounting mat for an exhaust gas treatment device, the mounting mat comprising:
- inorganic fibers;
- two opposing main surfaces;
- and
- at least one edge surface extending between the main surfaces,
- wherein at least one portion of the at least one edge surface comprises an erosion protection coating by applying a slurry of inorganic particles so as to provide erosion protection on at least one portion of the at least one edge surface,
- wherein the inorganic particles have an average diameter of at least 10 μm, and
- wherein the inorganic particles stay on the peripheral surface of the at least one portion of at least one edge of the mat and do not penetrate into the mounting mat.
4 more elements
A method of making a mounting mat for an exhaust gas treatment device, the method comprising the steps of:
- providing a mounting mat, the mat comprising:
- inorganic fibers;
- two opposing main surfaces;
- and
- at least one edge surface extending between the main surfaces;
- providing at least one slurry of inorganic particles, the particles having an average diameter of at least 1 μm;
- applying the slurry so as to form an erosion protection coating of the inorganic particles onto at least one portion of at least one edge surface of the mounting mat,
- wherein at least one entire edge surface comprises the erosion protection coating.
5 more elements
Dependencies are inferred from the claim text.