The disclosure relates to omniphobic coatings, related articles including such coatings, and related method for forming such coatings or articles, for example biobased and/or biodegradable omniphobic coatings with high barrier properties. The omniphobic coating includes an oleophobic and hydrophilic first layer, and a hydrophobic and optionally oleophilic second layer adjacent to the first layer. A corresponding omniphobic coated article can include the omniphobic coating on a substrate such as a porous cellulosic or paper substrate, for example to provide a water- and oil/fat/grease-resistant coating for a paper-based product. The first layer of the omniphobic coating is adjacent to the substrate and the second layer is adjacent to the first layer at a position further from the substrate than the first layer. The omniphobic coating can be applied to a substrate in a layer-by-layer process, and the coated article can be recycled by extraction to remove the coating and recover the substrate material, for example in a re-pulping process.

Anti-corrosive conversion coating compositions are disclosed. The anti-corrosive conversion coating compositions include a biopolymer and a rare earth element compound. Implementations of the anti-corrosive conversion coating composition can include where the biopolymer includes chitosan, starch, inulin, dextran, pullulan, or a combination thereof. The rare earth element compound may include one or more of the lanthanide series of elements, scandium, yttrium, or a combination thereof. The rare earth element compound may include a hydroxide of a rare earth element, an oxide of a rare earth element, or a combination thereof. Coated articles and methods for applying the anti-corrosive conversion coating compositions are also disclosed.

Anti-corrosive conversion coating compositions are disclosed. The anti-corrosive conversion coating compositions include a biopolymer and a rare earth element compound. Implementations of the anti-corrosive conversion coating composition can include where the biopolymer includes chitosan, starch, inulin, dextran, pullulan, or a combination thereof. The rare earth element compound may include one or more of the lanthanide series of elements, scandium, yttrium, or a combination thereof. The rare earth element compound may include a hydroxide of a rare earth element, an oxide of a rare earth element, or a combination thereof. Coated articles and methods for applying the anti-corrosive conversion coating compositions are also disclosed.

Anti-corrosive conversion coating compositions are disclosed. The anti-corrosive conversion coating compositions include a biopolymer and a rare earth element compound. Implementations of the anti-corrosive conversion coating composition can include where the biopolymer includes chitosan, starch, inulin, dextran, pullulan, or a combination thereof. The rare earth element compound may include one or more of the lanthanide series of elements, scandium, yttrium, or a combination thereof. The rare earth element compound may include a hydroxide of a rare earth element, an oxide of a rare earth element, or a combination thereof. Coated articles and methods for applying the anti-corrosive conversion coating compositions are also disclosed.

The present invention relates to a film comprising at least one biodegradable layer (i) having an elastic modulus of more than 450 MPa, consisting of a mixture of polyhydroxyalkanoate constituting the continuous phase and aliphatic and/or aliphatic-aromatic polyester constituting the discontinuous phase, and at least one coating layer (ii) preferably capable of having barrier effects against gases and liquids. The surface of said layer (i) will have a root mean square roughness Sq of more than 10 nm and less than 45 nm, measured by atomic force microscopy (AFM). The film is particularly suitable for use in food packaging.

The present invention relates to a film comprising at least one biodegradable layer (i) having an elastic modulus of more than 450 MPa, consisting of a mixture of polyhydroxyalkanoate constituting the continuous phase and aliphatic and/or aliphatic-aromatic polyester constituting the discontinuous phase, and at least one coating layer (ii) preferably capable of having barrier effects against gases and liquids. The surface of said layer (i) will have a root mean square roughness Sq of more than 10 nm and less than 45 nm, measured by atomic force microscopy (AFM). The film is particularly suitable for use in food packaging.

An insoluble foam composite material is formed by a mixture combining an anionic polysaccharide, a cationic polysaccharide, a solvent, and a plasticizer. In particular, the composite material can be prepared by heating, freezing and lyophilizing the mixture to produce, for example, insoluble porous foam-like composites.

An insoluble foam composite material is formed by a mixture combining an anionic polysaccharide, a cationic polysaccharide, a solvent, and a plasticizer. In particular, the composite material can be prepared by heating, freezing and lyophilizing the mixture to produce, for example, insoluble porous foam-like composites.

The present invention relates to a coating composition, comprising a solids component which comprises a first solid that is able to cleave CO2 in a temperature range from about 150 to about 1000° C., and that has a D50 value of at most about 10 pm. It is furthermore directed to a method for coating a casting mold, the use of the coating composition for coating a casting mold, and the coated casting mold.

The invention relates to a method for applying starch to a paper or paperboard web, the method comprising the steps of: providing an aqueous suspension comprising starch particles and at least 1 wt %, based on the dry solid content of the suspension, of an amphiphilic polymer, creating a foam of the aqueous suspension, and applying the foam to the paper or paperboard web. The invention further relates to a paper or paper board product obtained by the method.