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US 11,692,101 B2Granted
Protective coating composition for substrates in contact with molten metal
AssigneePyrotek High Temperature Industrial Products Inc.
InventorsMarcel Gouin, François Veillette, Alain Simard
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Abstract
A coating composition and a method of making a coating composition is provided. The coating composition includes: a) a binder system comprising a mixture of a caramelized carbohydrate component, an inorganic colloidal binder, and an adjuvant; and b) a protective agent. The coating composition is useful for protecting articles from corrosion and/or erosion caused by contact with molten metal.
Claims20
A coating composition comprising:
- a) a binder system comprising a mixture of:
- i) a caramelized carbohydrate component,
- ii) an adjuvant, and
- iii) an inorganic colloidal binder;
- and
- b) a protective agent selected from the group consisting of a silicate, a boride, a nitride, a carbide, a sulfide, a fluoride, an aluminide, synthetic glass, glass fibers, ceramic fibers, graphite, bone ash, aluminum titanate, calcium aluminate, and combinations thereof;
- wherein the coating composition, when solidified on a substrate has a thickness of from about 10 μm to about 100 μm.
4 more elements
An article comprising:
- a) a substrate;
- and
- b) a solid coating adhered to at least a portion of the substrate, wherein the solid coating has a thickness of 10 μm to 100 μm and is formed from a coating composition comprising:
- i) a binder system comprising a mixture of:
- A) a caramelized carbohydrate component,
- B) an adjuvant, and
- C) an inorganic colloidal binder;
- and
- ii) a protective agent selected from the group consisting of a silicate, a boride, a nitride, a carbide, a sulfide, a fluoride, an aluminide, synthetic glass, glass fibers, ceramic fibers, graphite, bone ash, aluminum titanate, calcium aluminate, and combinations thereof.
6 more elements
A coating composition comprising:
- a protective agent selected from the group consisting of a silicate, a boride, a nitride, a carbide, a sulfide, a fluoride, an aluminide, synthetic glass, glass fibers, ceramic fibers, graphite, bone ash, aluminum titanate, calcium aluminate, and combinations thereof,
- wherein the coating composition when solidified on a substrate inhibits one or more of corrosion and erosion caused by molten metal, has a thickness of 10 μm to 100 μm, and has a surface hardness of at least 45 measured according to ASTM-D2240 on the Shore D scale.
A coating composition comprising:
- a protective agent selected from the group consisting of a silicate, a boride, a nitride, a carbide, a sulfide, a fluoride, an aluminide, synthetic glass, glass fibers, ceramic fibers, graphite, bone ash, aluminum titanate, calcium aluminate, and combinations thereof,
- wherein the coating composition when solidified on a substrate inhibits one or more of corrosion and erosion caused by molten metal, has a thickness of 10 μm to 100 μm, and has a Taber stiffness of at least 30.
Dependencies are inferred from the claim text.