US 7,547,671 B2 · Discoloration removal cleaning agent for titanium and titanium alloy building materials, and discoloration removal cleaning method

Abstract

A removal cleaning agent for discolored sections of titanium building materials which comprises at least a water-soluble inorganic acid salt, an organic acid or organic acid salt, a surfactant and a hydrophilic oxygen-containing hydrocarbon solvent, and optionally an discoloration inhibitor, fluoracarbon resin and polishing material. In the cleaning method for discolored sections of titanium building materials, coating is carried out with a bristle brush and a sponge roller, the coated film sections are polished with a nonwoven fabric or foam resin, optionally after aging, and then the discolored sections are removed by washing with water.

Claims25

Dependent claims

A discoloration removal cleaning agent for at least one of a titanium building material and a titanium alloy building material, comprising:

a water-soluble inorganic acid salt of potassium fluoride in an amount of 0.5 to 5.0 wt %;
a composition including one of an organic acid and an organic acid salt in an amount of 2 to 15 wt %;
a surfactant in an amount of 2 to 10 wt %;
a hydrophilic oxygen-containing hydrocarbon solvent in an amount of 5 to 20 wt %;
and
the remainder, water.

3 more elements

Dependencies are inferred from the claim text.

Discoloration removal cleaning agent for titanium and titanium alloy building materials, and discoloration removal cleaning method

Life of this patent

Discoloration removal cleaning agent for titanium and titanium alloy building materials, and discoloration removal cleaning method

Life of this patent

Abstract

Claims25