A method of producing a silica-based superhydrophilic film. A coating formulation is provided, where the coating formulation includes an alkali metal silicate having a substantial portion of water removed therefrom, where the alkali metal silicate has a formula of M.sub.2O.Math.nSiO.sub.2, and where M represents an alkali metal and n is a positive real number greater than zero. Furthermore, the coating formulation and an alcohol including a curing agent are mixed, where the curing agent includes an acid or an alkaline earth metal halide. Additionally, the coating formulation is dried to form the silica-based superhydrophilic film. Furthermore, a silica-based superhydrophilic film is produced according to such a method, where the silica-based superhydrophilic film includes an amine stabilizer.

A method of producing a silica-based superhydrophilic film. A coating formulation is provided, where the coating formulation includes an alkali metal silicate having a substantial portion of water removed therefrom, where the alkali metal silicate has a formula of M.sub.2O.Math.nSiO.sub.2, and where M represents an alkali metal and n is a positive real number greater than zero. Furthermore, the coating formulation and an alcohol including a curing agent are mixed, where the curing agent includes an acid or an alkaline earth metal halide. Additionally, the coating formulation is dried to form the silica-based superhydrophilic film. Furthermore, a silica-based superhydrophilic film is produced according to such a method, where the silica-based superhydrophilic film includes an amine stabilizer.

A composition based on a certain chromium-free silicate-based binder is described. The composition is an aqueous solution of lithium-doped potassium silicate in combination with an aluminum or aluminum alloy powder, zinc powder or a combination thereof. The coatings of the present invention are capable of achieving a full cure at temperatures as low as 350-450 degrees F. by the inclusion of a colloidal solution of a nano-sized ceria, thus making the coatings especially suitable for application on temperature sensitive base materials.

[Purpose] To provide a thermosetting composition with which it is possible to obtain paint films which not only display stain resistance for a short period after application, but with which excellent stain resistance can also be expected for longer periods, and which comply with the paint film properties required for painted steel sheet such as water resistance and bending workability, and have high environmental protection and safety qualities. [Solution] The present invention relates to a thermosetting composition, wherein it contains, as essential components, (A) a polyester resin of number average molecular weight 1,000-10,000 and hydroxyl value 5-200 mg KOH/g and, (B) 0.5 to 2.0 equivalents, relative to the hydroxyl groups of the aforesaid component (A), of a compound (B) which is a blocked aliphatic polyisocyanate compound having reactivity to the hydroxyl groups of component (A), wherein the blocks are methyl ethyl ketone oxime and/or ε-caprolactam, (C) 0.05 to 5 mass %, relative to the total resin solids mass of component (A) and component (B), of an organotin compound represented by the following general formula (I) [Chem.1] R.sup.1—Sn-(O)C═(O)—R.sup.2).sub.3 (I) (R.sup.1 in the formula represents an organic group wherein it has 1-24 carbons, and is directly bound to the Sn atom via a C atom. R.sup.2 represents an organic group wherein it has 1-24 carbons, and is directly bound to the C atom of the (C═O) via a C atom), and (D) 0.5 to 50 mass %, relative to the total resin solids mass of component (A) and component (B), of an organosilicate represented by the following general formula (II) and/or a condensation product thereof [Chem.2] (R.sup.3, R.sup.4, R.sup.5 and R.sup.6 in the formula are each a hydrogen atom or 1-10 carbon organic group, and may be the same or different, n is 1). ##STR00001##

[Purpose] To provide a thermosetting composition with which it is possible to obtain paint films which not only display stain resistance for a short period after application, but with which excellent stain resistance can also be expected for longer periods, and which comply with the paint film properties required for painted steel sheet such as water resistance and bending workability, and have high environmental protection and safety qualities. [Solution] The present invention relates to a thermosetting composition, wherein it contains, as essential components, (A) a polyester resin of number average molecular weight 1,000-10,000 and hydroxyl value 5-200 mg KOH/g and, (B) 0.5 to 2.0 equivalents, relative to the hydroxyl groups of the aforesaid component (A), of a compound (B) which is a blocked aliphatic polyisocyanate compound having reactivity to the hydroxyl groups of component (A), wherein the blocks are methyl ethyl ketone oxime and/or ε-caprolactam, (C) 0.05 to 5 mass %, relative to the total resin solids mass of component (A) and component (B), of an organotin compound represented by the following general formula (I) [Chem.1] R.sup.1—Sn-(O)C═(O)—R.sup.2).sub.3 (I) (R.sup.1 in the formula represents an organic group wherein it has 1-24 carbons, and is directly bound to the Sn atom via a C atom. R.sup.2 represents an organic group wherein it has 1-24 carbons, and is directly bound to the C atom of the (C═O) via a C atom), and (D) 0.5 to 50 mass %, relative to the total resin solids mass of component (A) and component (B), of an organosilicate represented by the following general formula (II) and/or a condensation product thereof [Chem.2] (R.sup.3, R.sup.4, R.sup.5 and R.sup.6 in the formula are each a hydrogen atom or 1-10 carbon organic group, and may be the same or different, n is 1). ##STR00001##

There is provided a rust preventive pigment capable of achieving both high stability in water or an aqueous medium, and excellent rust preventive capability and adhesion of an obtained rust preventive film, and a rust preventive coating composition with which a rust preventive film can be obtained that excels in stability of a rust preventive pigment and that excels in rust preventive capability and adhesion. The rust preventive coating composition of the present invention contains a rust preventive pigment comprising one or more among particles of zinc or a zinc alloy that has had at least a portion of the surface thereof treated with phosphoric acid.

There is provided a rust preventive pigment capable of achieving both high stability in water or an aqueous medium, and excellent rust preventive capability and adhesion of an obtained rust preventive film, and a rust preventive coating composition with which a rust preventive film can be obtained that excels in stability of a rust preventive pigment and that excels in rust preventive capability and adhesion. The rust preventive coating composition of the present invention contains a rust preventive pigment comprising one or more among particles of zinc or a zinc alloy that has had at least a portion of the surface thereof treated with phosphoric acid.

Provided is a resist underlayer film-forming composition for forming resist underlayer film usable as hard mask and removable by wet etching process using chemical solution such as sulfuric acid/hydrogen peroxide. A resist underlayer film-forming composition for lithography includes a component (A) and component (B), the component (A) includes a hydrolyzable silane, hydrolysis product thereof, or hydrolysis-condensation product thereof, the hydrolyzable silane includes hydrolyzable silane of Formula (1): R.sup.1.sub.aR.sup.2.sub.bSi(R.sup.3).sub.4−(a+b) (where R.sup.1 is organic group of Formula (2): ##STR00001##
and is bonded to silicon atom through a Si—C bond; R.sup.3 is an alkoxy group, acyloxy group, or halogen group; is an integer of 1; b is an integer of 0 to 2; and a+b is an integer of 1 to 3), and the component (B) is cross-linkable compound having ring structure having alkoxymethyl group or hydroxymethyl group, cross-linkable compound having epoxy group or blocked isocyanate group.

Provided is a resist underlayer film-forming composition for forming resist underlayer film usable as hard mask and removable by wet etching process using chemical solution such as sulfuric acid/hydrogen peroxide. A resist underlayer film-forming composition for lithography includes a component (A) and component (B), the component (A) includes a hydrolyzable silane, hydrolysis product thereof, or hydrolysis-condensation product thereof, the hydrolyzable silane includes hydrolyzable silane of Formula (1): R.sup.1.sub.aR.sup.2.sub.bSi(R.sup.3).sub.4−(a+b) (where R.sup.1 is organic group of Formula (2): ##STR00001##
and is bonded to silicon atom through a Si—C bond; R.sup.3 is an alkoxy group, acyloxy group, or halogen group; is an integer of 1; b is an integer of 0 to 2; and a+b is an integer of 1 to 3), and the component (B) is cross-linkable compound having ring structure having alkoxymethyl group or hydroxymethyl group, cross-linkable compound having epoxy group or blocked isocyanate group.

A cooking vessel, comprising a base, having an upper surface and a bottom surface, wherein the upper surface is configured to be in contact with food cooked inside the cooking vessel, sidewalls extending from the base, at the direction of the upper surface, said sidewalls have an internal surface configured to be in contact with food cooked inside the cooking vessel, wherein the base and the sidewalls are made of at least one metallic material sheets, wherein the base and the sidewall are connected by welding or folding, wherein the internal surface of the sidewalls and the upper surface of the base are coated by a coating layer configured to prevent degradation of the at least one metallic material sheets when heating the cooking vessel.