The instant invention is a fire protectant composition comprising water, a surfactant, a water-soluble polymer, casein, and a calcium salt. The compositions can be applied to materials such as wood in advance of a fire, and after application, the compositions are capable of retaining their fire protectant capacities for days, weeks or even months. This fire protectant composition is also biodegradable and nontoxic. It is also easily removed from the combustible material by a water wash once the fire danger is passes. If burned, the composition forms a skin which can be peeled off or removed by some other method such as pressure water spray or mechanical brushing.

A method of protecting a part of a surface of an aircraft against contamination with insect residues and/or against icing is described. The method includes the following steps: a) coating the part of the surface to be protected with a coating that can, within a period of 3 hours from take-off of the aircraft and in normal flying conditions, reduce the adhesion to the part of the surface to be protected until detachment occurs on the basis of (i) temperature change and/or (ii) UV radiation and/or (iii) addition of a decomposing component and/or (iv) difference in air humidity, and b) exposing the part of the surface to be protected to (i) a temperature change and/or (ii) UV irradiation (iii) and/or addition of a decomposing component and/or (iv) a difference in air humidity, so that the coating together with any contaminants and/or icing thereon detaches.

A method of protecting a part of a surface of an aircraft against contamination with insect residues and/or against icing is described. The method includes the following steps: a) coating the part of the surface to be protected with a coating that can, within a period of 3 hours from take-off of the aircraft and in normal flying conditions, reduce the adhesion to the part of the surface to be protected until detachment occurs on the basis of (i) temperature change and/or (ii) UV radiation and/or (iii) addition of a decomposing component and/or (iv) difference in air humidity, and b) exposing the part of the surface to be protected to (i) a temperature change and/or (ii) UV irradiation (iii) and/or addition of a decomposing component and/or (iv) a difference in air humidity, so that the coating together with any contaminants and/or icing thereon detaches.

[Problem] To provide an aqueous-emulsion oil-resistant coating material excellent in terms of air permeability, oil resistance, and carbon neutrality, by using a bio-derived component as a main component. [Solution] An aqueous-emulsion oil-resistant coating material comprising component (a), which is hydrogenated castor oil and/or rice wax, component (b), which is poly(vinyl alcohol) and/or casein, and water; a method for producing paper, characterized by applying the aqueous-emulsion oil-resistant coating material; and paper having a coating layer including the aqueous-emulsion oil-resistant coating material.

Disclosed are an oxygen barrier film, a food wrapper including the same, and a method of preparing the oxygen barrier film. The oxygen barrier film may include: a base layer; and an organic/inorganic hybrid layer located on the base layer and including a natural hydrogel and a silane coupling agent.

A tannin-blocking coating is provided. The coating includes a binder resin and casein proteins. The tannin-blocking coating mitigates migration of tannins from a substrate on which the tannin-blocking coating is placed.

Provided are an oxygen barrier film, a food wrapper including the same, and a method of preparing the oxygen barrier film. The oxygen barrier film may include: a base layer; and an organic/inorganic hybrid layer located on the base layer and including a natural hydrogel and a silane coupling agent.