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US 8,561,328 B2Granted
Steam generating device provided with a hydrophilic coating
AssigneeKoninklijke Philips N.V.
InventorYtsen Wielstra
Life of this patent
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Abstract
A steam generating device includes a steam chamber provided with a hydrophilic coating. The hydrophilic coating includes an acid phosphate compound and boron, such as a salt of boron with a metallic element. T he coating promotes steaming and is resistant to flaking.
Claims20
A steam generating device comprising:
- a steam chamber;
- and
- a hydrophilic coating located on a surface of the steam chamber, the hydrophilic coating comprising an acid phosphate compound, boron, and Al(H2 PO4)3.
A steam generating device comprising:
- a steam chamber;
- and
- a hydrophilic coating located on a surface of the steam chamber, the hydrophilic coating comprising an acid phosphate compound and boron,
- wherein a quantity of a salt of boron with a metallic element in the hydrophilic coating is between 1 and 40% by weight of a total composition of the hydrophilic coating.
1 more element
A method of producing a hydrophilic coating in a steam chamber of a steam generating device, the method comprising the acts of:
- preparing a mixture of an acid phosphate compound, boron and Al(H2 PO4)3;
- introducing the mixture into the steam chamber;
- and
- curing the mixture at an elevated temperature to form a hydrophilic coating.
1 more element
Dependencies are inferred from the claim text.