A curable coating composition and the use, especially in heat exchangers, for heating and/or cooling water, in particular tap water, is described. The curable coating comprises, based on solids after curing, 35-80% by weight of an epoxysilane according to the general structure 1 and/or its hydrolysation and/or condensation products, 1: R.sup.1R.sup.2.sub.aSiR.sup.3.sub.b with R1 being 3-glycidyloxypropyl, R.sup.2 being methyl, R.sup.3 being alkyloxy or acyloxy, a being 0, 1 or 2 and b being 3a and 20-65% by weight of a blocked polyisocyanate and optionally further components. The coating provides improved corrosion protection on aluminium surfaces, reduces limescale formation on heat exchanger surfaces and is able to withstand lateral and/or temporal temperature gradients when coated on heat exchanging surfaces.

Provided is a humic acid-based coating suspension comprising humic acid, particles of an anti-corrosive pigment or sacrificial metal, and a binder resin dissolved or dispersed in a liquid medium, wherein the humic acid has a weight fraction from 0.1% to 50% based on the total coating suspension weight excluding the liquid medium. Also provided is an object or structure coated at least in part with such a coating.

A corrosion inhibiting coating is applied to a target substrate that includes dual- or poly-terminus siloxane having pendant and/or terminal amine or thiol moieties reacted with a strained ring alkoxysilane. The siloxanes adhered to susceptible surface with a tertiary amine or divalent mercaptan chain linker extending therebetween. The resulting coating functions as a corrosion inhibitor, and in some embodiments as a primer for subsequent painting. The resulting coating is generally invisible to the unaided human eye. A process of forming the corrosion inhibiting coating includes forming a water or solvent based emulsion solution by combining a solvent and/or water with suitable surfactants, an amine functional silicone fluid, and a strained ring containing alkoxysilane reactive with a nitrogen or sulfur containing curative chain linker.

An alkoxysilane is contacted with water and an inorganic acid to form a first composition. A zirconium alkoxide is contacted with an organic acid to form a second composition. One or more alkoxysilanes and an organic acid are contacted with a mixture of the first and second compositions to form a sol-gel composition, to which a photoinitiator is added. The sol-gel composition has a ratio of a number of moles of silicon to a number of moles of zirconium (n.sub.Si/n.sub.Zr) ranging from about 2 to about 10. The sol-gel composition is applied on a substrate (e.g., an aluminum alloy substrate) multiple times to form multiple sol-gel layers, and at least one of the sol-gel layers is cured by UV radiation. The multiple sol-gel layers are then thermally cured.

The present invention provides an anti-corrosion composition comprising an organic ion-exchanger; and a solventborne resin, wherein a substrate exposed to a halide-containing environment and having the anti-corrosion composition applied thereto has a reduced level of corrosion compared to the substrate exposed to the halide-containing environment without the anti-corrosion composition being applied. The inventive solventborne anti-corrosion composition may find use on substrates such as automotive vehicles, bridges, cranes, superstructures, offshore oil & gas rigs, pipes, tanks, ships, barges, boats, aircraft, concrete, and masonry that are exposed to halide-containing environments.

Compositions are described for protecting a metal surface against corrosion. The composition includes a corrosion-inhibiting particle. The corrosion inhibiting particle may be usable in an epoxy resin-based coating or an olefin resin-based coating. The particle may include a core and a protectant. The core may include a water soluble corrosion inhibitor. The protectant may be disposed on at least a portion of a surface of the core and may be covalently or ionically bonded to a thiol group of the corrosion inhibitor. The protectant may be configured to reduce reaction between the core and the epoxy resin or the olefin resin.

The present disclosure concerns synthesis, anion binding features, liquid-liquid extraction of salts, and anti-corrosion character of aryl-triazole bicyclic macrocycles of Formula (I) and related compounds: ##STR00001##

A mesoporous carbon container comprising an embedded organic corrosion inhibitor and having an organic polymeric coating is described. Further described are a coating comprising such a container and a method for producing such a container.

Aspects described herein generally relate to a method of coating a metallic surface. The method includes forming a solution including a corrosion inhibitor having one or more thiol moieties and a hydroxide. The metallic surface is coated with the solution to form a treated metallic surface. The treated metallic surface is further coated with an organosilane, an acid, and a metal alkoxide to form a coating system.

New diorganyl diselenide compounds are described herein, as well as the use of such diorganyl diselenide compounds in forming anticorrosion coatings for stainless steel. Also described are methods for forming the new diorganyl diselenide compounds as well as anti-corrosion coatings containing the diorganyl diselenide compounds.