Ceramic honeycomb structure skin coating
AssigneeUnifrax I LLC
InventorsJoseph A. Fernando, Kenneth B. Miller
Life of this patent
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Abstract
A porous ceramic (honeycomb) structure skin coating and a method of producing a porous ceramic structure skin coating which provides a hardshell, strong, acid- and alkali-resistant, chip-resistant ceramic honeycomb structure coating which resists pollution control catalyst from being absorbed into the skin coating.
Claims19
A skin coating material for porous ceramic substrates comprising:
- refractory ceramic fiber or biosoluble inorganic fiber;
- a viscosity modifier;
- a colloidal inorganic oxide:
- an inorganic binder;
- an inorganic particulate;
- and a secondary inorganic fiber, wherein the secondary inorganic fiber comprises E-glass fiber.
A skin coating material for porous ceramic substrates comprising:
- refractory ceramic fiber or biosoluble inorganic fiber;
- a methyl cellulose viscosity modifier;
- a colloidal inorganic oxide comprising colloidal silica;
- an inorganic binder;
- an inorganic particulate comprising silicon carbide;
- and, a secondary inorganic fiber.
A method of producing a porous ceramic substrate skin coating, comprising forming a mixture of:
- ceramic fibers or biosoluble inorganic fibers;
- a viscosity modifier;
- a colloidal inorganic oxide;
- an inorganic binder;
- an inorganic particulate;
- and a secondary inorganic fiber, wherein the secondary inorganic fiber comprises E-glass fiber.
A method of producing a porous ceramic substrate skin coating, comprising forming a mixture of:
- ceramic fibers or biosoluble inorganic fibers;
- a methyl cellulose viscosity modifier;
- a colloidal inorganic oxide comprising colloidal silica;
- an inorganic binder;
- an inorganic particulate comprising silicon carbide;
- and a secondary inorganic fiber.
Dependencies are inferred from the claim text.