A fabrication method for a press hardened part is provided. A sheet or a steel substrate blank for heat treatment is provided. A pre-coating is applied. The pre-coating has at least one layer of aluminum or aluminum alloy in contact with the steel substrate on at least one of the principal faces of the sheet or blank. Then a polymerized layer is deposited on the pre-coating. The polymerized layer has a thickness between 2 and 30 μm. The polymerized layer does not contain silicon, has a nitrogen content of less than 1% by weight and carbon pigments in a quantity between 3 and 30% by weight. The blank or the sheet is heated to obtain an interdiffusion between the steel substrate and the pre-coating and to give the steel a partly or totally austenitic structure. Then the blank or the sheet is hot stamped to obtain a part. The part is cooled by holding the part in a stamping tool so that the microstructure of the steel substrate includes, at least in a portion of the part, martensite or bainite.

A fabrication method for a press hardened part is provided. A sheet or a steel substrate blank for heat treatment is provided. A pre-coating is applied. The pre-coating has at least one layer of aluminum or aluminum alloy in contact with the steel substrate on at least one of the principal faces of the sheet or blank. Then a polymerized layer is deposited on the pre-coating. The polymerized layer has a thickness between 2 and 30 μm. The polymerized layer does not contain silicon, has a nitrogen content of less than 1% by weight and carbon pigments in a quantity between 3 and 30% by weight. The blank or the sheet is heated to obtain an interdiffusion between the steel substrate and the pre-coating and to give the steel a partly or totally austenitic structure. Then the blank or the sheet is hot stamped to obtain a part. The part is cooled by holding the part in a stamping tool so that the microstructure of the steel substrate includes, at least in a portion of the part, martensite or bainite.

A gas barrier laminate in which separation between a coating layer having gas barrier properties and a layer adjacent to the coating layer is less likely to occur. A coating solution for producing a gas barrier laminate contains a carboxyl group-containing polymer (A), polyvalent metal-containing particles (B), a surfactant (C), an organic solvent (D), and at least one silicon-containing compound (E) selected from the group consisting of a silane coupling agent represented by the following general formula (1), a silane coupling agent represented by the following general formula (2), hydrolysates thereof, and condensates thereof, wherein the mass ratio of the silicon-containing compound (E) to the carboxyl group-containing polymer (A) is 0.5% or more. Si(OR1).sub.3Z1 . . . (1); Si(R2)(OR3).sub.2Z2 . . . (2). (R1 and R3 are alkyl groups having 1 to 6 carbon atoms, R2 is a methyl group, and Z1 and Z2 are a group containing an epoxy group.)

A gas barrier laminate in which separation between a coating layer having gas barrier properties and a layer adjacent to the coating layer is less likely to occur. A coating solution for producing a gas barrier laminate contains a carboxyl group-containing polymer (A), polyvalent metal-containing particles (B), a surfactant (C), an organic solvent (D), and at least one silicon-containing compound (E) selected from the group consisting of a silane coupling agent represented by the following general formula (1), a silane coupling agent represented by the following general formula (2), hydrolysates thereof, and condensates thereof, wherein the mass ratio of the silicon-containing compound (E) to the carboxyl group-containing polymer (A) is 0.5% or more. Si(OR1).sub.3Z1 . . . (1); Si(R2)(OR3).sub.2Z2 . . . (2). (R1 and R3 are alkyl groups having 1 to 6 carbon atoms, R2 is a methyl group, and Z1 and Z2 are a group containing an epoxy group.)

In a coated article including a laminated coating film configured such that a first base layer 3 containing a lustrous material 11 and a second base layer 4 and a transparent clear layer 5 containing an organic pigment 15 are stacked on each other in this order on a coating target object, the same type of organic ultraviolet absorbing agent 13 having a molecular weight of equal to or greater than 500 is added to the first base layer 3 and the second base layer 4.

Compositions for forming coatings disclosed herein can include a cationic polyelectrolyte, an anionic polyelectrolyte, nanostructures, and a crosslinking agent. The compositions, coatings, methods, and kits described herein can have improved tribological properties, hardness, and strength.

Compositions for forming coatings disclosed herein can include a cationic polyelectrolyte, an anionic polyelectrolyte, nanostructures, and a crosslinking agent. The compositions, coatings, methods, and kits described herein can have improved tribological properties, hardness, and strength.

Methods of capturing respiratory droplets are provided which use coatings comprising a polyelectrolyte polymer and a viscosity modifier. In embodiments, a method of capturing respiratory droplets comprises absorbing respiratory droplets on a surface of a coating, the coating comprising a polyelectrolyte polymer and a viscosity modifier, wherein absorbed droplets leave depressions in the surface of the coating. Coated substrates and coating compositions used to form the coated substrates are also encompassed.

Described herein is a waterborne emulsion, a method for making the waterborne emulsion, and an application of the waterborne emulsion as a binder for inks. The waterborne emulsion includes an acidic polymer stabilizer and a base polymer. The ink made using the waterborne emulsion shows excellent alcohol tolerance and wet wrinkle resistance.

The invention is generally related to a method for producing, in a consistent manner, contact lenses each having an intact durable coating thereon, wherein the coating is a hydrogel coating formed by covalently attached a hydrophilic polymeric material having azetidinium groups onto a base coating of a polyanionic polymer on a contact lens at a relatively low temperature (e.g., from about 40° C. to about 60° C.). The coating temperature for forming a durable hydrogel coating on top of the base coating of a contact lens can be significantly lowered by raising, in situ, the pH (to about 9.5 or higher) of a reactive coating solution which contains the hydrophilic polymeric material having azetidinium groups.