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.

Provided are a 2-mercaptobenzothiazole modified graphene oxide anti-corrosion coating and a preparation method thereof, the raw materials of which comprising, by mass ratio: 2-mercaptobenzothiazole modified graphene oxide 5-20; a matrix resin 30-70; a leveling agent 0.5-1.0; a defoamant 0.5-1.0; a dispersant 0.5-1.0; a film-forming additive 0.5-1.0; a diluent 20-35. The method for the 2-mercaptobenzothiazole modified graphene oxide comprises first reacting graphene oxide with cyanuric chloride, then reacting with 2-mercaptobenzothiazole.

A sulfonate composition obtainable by a process in which a naphthalene ring-containing sulfonic acid is reacted with an amine in the presence of a base oil at a temperature in the range of from 20-80 C. The molar ratio of the sulfonic acid to the amide is in the range of from 0.2-3 (S/A). The invention also provides a preservative composition comprising the present sulfonate composition; a metal article having a coating thereon which coating comprises the present preservative composition; a process for preparing the sulfonate composition; the use of the present sulfonate composition to prevent and/or reduce corrosion in a roll bearing system; and the use of the present preservative composition to prevent and/or reduce corrosion in a roll bearing system.

Disclosed is a corrosion inhibition coating, comprising: a base comprising a matrix and a metal within the matrix; and an inhibitor comprising: zinc molybdate, cerium citrate, magnesium metasilicate, a metal phosphate silicate, or a combination thereof, wherein the metal within the matrix comprises aluminum, an aluminum alloy, zinc, a zinc alloy, magnesium, a magnesium alloy, or a combination thereof. Also disclosed is a substrate coated with the corrosion inhibition coating.

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.

Corrosion inhibition systems, including coated substrates, coating materials and corrosion inhibition compounds, and methods of making the same are disclosed. These systems and methods include corrosion inhibition compounds that are responsive to corrosion at a surface, releasing active inhibitor groups upon a corrosion stimulus. The active inhibitor groups are selected to block corrosion at the surface by inhibiting oxidation reactions, reduction reactions and/or by forming a passivation layer. Corrosion inhibition compounds may be linear polymers that include the inhibitor groups linked together with labile linkages that are disulfide or metal-sulfide bonds.

The present disclosure relates to agents, compositions, and methods for inhibiting corrosion in various substrates, for example in metal substrates. The present disclosure also relates to compositions for inhibiting corrosion comprising at least one organic heterocyclic compound and at least one metal salt or mixed metal salt selected from rare earth, alkali earth and transition metals.

A ZnAl layered double hydroxide (LDH) composition is added to a solution including a corrosion inhibitor and stirred, and a precipitate of the solution is collected, washed, and dried to form a corrosion inhibiting material (CIM), in which the LDH composition is intercalated with the corrosion inhibitor. An inorganic CIM and/or an organic CIM may be formed. The organic CIM may be added to a sol-gel composition to form an organic CIM-containing sol-gel composition, and the inorganic CIM may be added to a sol-gel composition to form an inorganic CIM-containing sol-gel composition. Further, the organic CIM-containing sol-gel composition may be applied on a substrate (e.g., an aluminum alloy substrate) to form an organic CIM-containing sol-gel layer and cured by ultraviolet (UV) radiation, the inorganic CIM-containing sol-gel composition may be applied on the substrate to form an inorganic CIM-containing sol-gel layer and cured by UV radiation, and the sol-gel layers may be thermally cured.

A corrosion inhibiting composition which is a liquid carrier in which is dissolved or dispersed a corrosion inhibitor compound comprising at least one moiety (A) which is an aliphatic, aromatic or mixed aliphatic/aromatic structure containing one or more hetero atoms which are nitrogen, oxygen, phosphorus or sulphur, and also at least one moiety (B) which contains one or more polymerisable groups containing double or triple bonded carbon, with the moieties (A) and (B) directly or indirectly covalently connected together.

A non-phosphorus chemical conversion treatment agent and treatment liquid for plastic working are provided, with reduced environmental impact, which are able to form films that are excellent in lubricity and corrosion resistance after plastic working by achieving large film thicknesses even in a system containing a salt of molybdic acid as its main constituent. An exemplary non-phosphorus chemical conversion treatment agent for plastic working is an agent containing a molybdic acid component (A), an acid component (B), and an aqueous medium (C), which is characterized in that the (B) comprises at least an organic acid component (B1) having at least one group selected from a carboxyl group and a phenolic hydroxyl group.