The present disclosure is directed to processes, compositions and agents for inhibiting corrosion in various substrates, for example metal substrates. The present disclosure is also directed to corrosion inhibitors comprising organometallic polymers such as metal-organic frameworks (MOFs), including compositions and processes comprising MOFs for inhibiting corrosion in metal substrates.

Processes, compositions and agents are included for inhibiting corrosion in various substrates, for example metal substrates. Corrosion inhibitors include organometallic polymers such as metal-organic frameworks (MOFs), including compositions and processes comprising MOFs for inhibiting corrosion in metal substrates. In some aspects, a method of protecting a substrate from corrosion includes applying a protective composition including a corrosion inhibitor to the surface of a substrate, where the corrosion inhibitor includes a metal organic framework (MOF).

An organic amine decarbonization solution includes: i) one or more organic amines serving as a carbon dioxide absorbent; and ii) an antioxidant. The antioxidant includes: a) one or more organometallic complexes of Formula [M.sub.x(L).sub.y]A.sub.n, wherein each M independently represents a central atom selected from the group consisting of transition metals, Group IVA metals and Group VA metals at a lower valence state; each L independently represents a bidentate or multidentate organic ligand with each ligating atom thereof being independently one of O, S, N and P; each A independently represents an uncoordinated counter-ion suitable for forming an outer sphere of a complex; x is 1, 2 or 3; y is 1, 2, 3, 4, 5, 6, 7 or 8; and n is 0, 1, 2, 3 or 4; and b) optionally one or more metal chelating agents.

The production of an oxygen-absorbent composition is provided, having: (a) a porous silica encapsulation matrix; and (b) a composition containing an oxygen-absorbent compound selected from fatty acids, unsaturated esters or compounds containing same, and, optionally, a catalyst based on an inorganic salt of a transition metal, wherein the composition (b) is encapsulated in the porous silica matrix (a). The composition can form part of the structure of the packaging for oxidation sensitive products or be placed in the surrounding atmosphere to reduce the concentration of oxygen. A method for encapsulating the active compound or the active compound together with a catalyst, and subsequently incorporating same into polymer matrices is also provided.

The present disclosure is directed to processes, compositions and agents for inhibiting corrosion in various substrates, for example metal substrates. The present disclosure is also directed to corrosion inhibitors comprising organometallic polymers such as metal-organic frameworks (MOFs), including compositions and processes comprising MOFs for inhibiting corrosion in metal substrates.

The production of an oxygen-absorbent composition is provided, having: (a) a porous silica encapsulation matrix; and (b) a composition containing an oxygen-absorbent compound selected from fatty acids, unsaturated esters or compounds containing same, and, optionally, a catalyst based on an inorganic salt of a transition metal, wherein the composition (b) is encapsulated in the porous silica matrix (a). The composition can form part of the structure of the packaging for oxidation sensitive products or be placed in the surrounding atmosphere to reduce the concentration of oxygen. A method for encapsulating the active compound or the active compound together with a catalyst, and subsequently incorporating same into polymer matrices is also provided.

The present disclosure is directed to processes, compositions and agents for inhibiting corrosion in various substrates, for example metal substrates. The present disclosure is also directed to corrosion inhibitors comprising organometallic polymers such as metal-organic frameworks (MOFs), including compositions and processes comprising MOFs for inhibiting corrosion in metal substrates.

The present disclosure is directed to processes, compositions and agents for inhibiting corrosion in various substrates, for example metal substrates. The present disclosure is also directed to corrosion inhibitors comprising organometallic polymers such as metal-organic frameworks (MOFs), including compositions and processes comprising MOFs for inhibiting corrosion in metal substrates.

Provided is a galvanized steel sheet including: a steel sheet comprising a galvanized layer; and a surface coating layer formed on the galvanized layer by using a composition which comprises a trivalent chromium compound, a carboxylated vinylidene copolymer, and a crosslinking agent. The galvanized layer includes Mg.

Provided is a composition for surface treatment of an Mg-containing galvanized steel sheet comprising a trivalent chromium compound, a carboxylated vinylidene copolymer, and a cross-linking agent. The composition for surface treatment forms a chromium (III) film and is also cross-linked in coating and drying of the surface of a galvanized steel sheet, thereby forming a three-dimensional compact molecular structure. Thus, a galvanized steel sheet coated with the composition has a coating film with high ductility, and can reduce moisture and/or oxygen permeability such that, not only does a worked section have excellent corrosion resistance, but also the occurrence of darkening and/or black dots can be prevented even when exposed to high-temperature and high-humidity environment for a long period of time.