A method for coating a composite structure, comprising applying a first slurry onto a surface of the composite structure, wherein the first slurry is a sol gel comprising a metal organic salt, a first carrier fluid, and a ceramic material, and heating the composite structure to a first sol gel temperature sufficient to form a sol gel-derived base layer on the composite structure.

This disclosure relates to compositions for protecting a metallic surface susceptible to corrosion, the composition comprising a first component comprising an aqueous mixture of an acid-phosphate of chemical formula A.sup.m(H.sub.2PO.sub.4).sub.m.nH.sub.2O, where A is hydrogen ion, ammonium cation, metal cation, or mixtures thereof where m=1-3, and n=0-6; the first component solution adjusted to a pH of about 2 to about 5, the first component having a particle size distribution between 0.04 to 60 micron; and a second component, configured for combination and at least partial reaction with the first component to provide a phosphate ceramic, the second component comprising an aqueous solution or suspension of an alkaline oxide or alkaline hydroxide represented by B.sup.2mO.sub.m, B(OH).sub.2m, or mixtures thereof, where B is an element of valency 2m (m=1, 1.5, or 2) the second component solution adjusted to a pH of between 9-14.

Corrosion inhibitor materials are provided that release active corrosion inhibitor compounds when they are most neededin response to changes in conditions, including acid or basic pH, that cause corrosion or occur at the early stages of corrosion. The materials comprise particles that can be dispersed in paints and coatings for metals. The particles in some cases include ionic water-soluble anti-corrosion agents complexed to oppositely charged surfactants and entrapped in silica oxide or metal oxide gels.

Self-fusing silicone tapes contain neutral corrosion inhibitors therein such as salts of acids. Such tapes provide protection in an acid gas environment as well as under thermal insulation. The same also allows inspection of protected structure without removing the protection apparatus.

The present application provides corrosion protection compositions. In one embodiment, the corrosion protection composition of the present disclosure contains a polymer composition saturated with a clay that is intercalated with a C.sub.1-22 alkyl amine or a C.sub.1-22 alkyl ammonium cation. Methods of protecting metal surfaces from corrosion are also provided.

A wire grid polarizer (WGP) can have a conformal-coating to protect the WGP from at least one of the following: corrosion, dust, and damage due to tensile forces in a liquid on the WGP. The conformal-coating can include a silane conformal-coating with chemical formula (1), chemical formula (2), or combinations thereof: ##STR00001##
A method of applying a conformal-coating over a WGP can include exposing the WGP to Si(R.sup.1).sub.d(R.sup.2).sub.e(R.sup.3).sub.g. In the above WGP and method, X can be a bond to the ribs; each R.sup.1 can be a hydrophobic group; each R.sup.3, if any, can be any chemical element or group; d can be 1, 2, or 3, e can be 1, 2, or 3, g can be 0, 1, or 2, and d+e+g=4; R.sup.2 can be a silane-reactive-group; and each R.sup.6 can be an alkyl group, an aryl group, or combinations thereof.

A coating composition comprising at least one alkyd resin and at least one reactive diluent selected from modified cardanol. Optionally, the coating composition may further include at least one dryer agent, at least one pigment, and at least one solvent. The use of a modified cardanol reactive diluent can reduce the amount of volatile organic solvent, while decreasing drying time, increasing adhesion, and improving corrosion resistance.

The present invention relates to an acidic aqueous composition for treating of zirconium-pretreated metal-based substrate surfaces such as steel metals or aluminium surfaces, a process for treating the substrate surfaces with the composition and the use of the composition as post-treatment of zirconium-pretreated metal-based substrate surfaces for subsequent electrocoating of the surfaces to increase corrosion resistance of said metal-based surfaces prior to electro-coating (e-coat) applications and increases detergent and chemical resistance of treated surfaces used in the white goods industry. The acidic aqueous composition comprises trivalent chromium ions; and hexafluorozirconate ions; characterized in that the source of trivalent chromium ions is a trivalent chromium nitrate salt.

The present invention relates to coatings, particularly high performance coatings, containing a polyester polyol comprising recurring units derived from a polyacid source, poly(bisphenol-A carbonate) (PBAC), and a glycol. The PBAC is preferably recycled poly(bisphenol-A carbonate) (rPBAC). These coatings provide improved salt spray and stain resistance along with a variety of other coating performance attributes. The polyols can contain a significant recycle and biobased content, making them sustainable alternatives to petroleum based polyols.

Provided is a coating material including particles of at least one compound selected from the group consisting of calcium oxide, calcium hydroxide, strontium oxide, and strontium hydroxide, and particles of a metal sulfate. In the coating material, a soluble amount of the metal sulfate in 100 g of water is 0.5 g or more at 5 C.; an average particle diameter of the particles of the compound is 17 m or less, an average particle diameter of the particles of the metal sulfate is 17 m or less, a content of the particles of the compound is 0.10 to 50.0% by mass with respect to a total solid content of the coating material, and a content of the particles of the metal sulfate is 0.05 to 30.0% by mass with respect to the total solid content of the coating material.