Disclosed herein are coated articles comprising a substrate having at least one surface, and a coating composition disposed in a substantially continuous layer on at least one surface of the substrate, wherein the coating composition is present in an amount sufficient to increase the oxygen barrier property of the substrate, and the coating composition comprises a polysaccharide derivative. The polysaccharide derivative can comprise a poly alpha-1,3-glucan ether compound, such as a quaternary ammonium alpha-1,3-glucan ether. Also disclosed is packaging comprising the coated article.

A method for preparing an improved gum arabic comprising the steps of providing a gum arabic from Acacia seyal selecting gum arabic having a tannin content >700 ppm (w/w).

A stereolithography elastic film with adjustable peeling force applied to a stereolithography 3D printing apparatus, and the stereolithography elastic film includes at least one of a first colloid and a second colloid. The first colloid includes a non-polyelectrolyte and water, the water occupies the largest percentage in the first colloid. The second colloid includes a polyelectrolyte, a coagulant and water, the water occupies the largest percentage in the second colloid. The peeling force of the stereolithography elastic film may be adjusted by adjusting the percentage of at least one of the non-polyelectrolyte, the polyelectrolyte, the coagulant, and the water.

A formaldehyde-free binder composition for mineral fibers which comprises at least one phenol containing compound and at least one protein.

An aqueous binder composition for mineral fibers which comprises at least one polyelectrolytic hydrocolloid.

A microwave absorbing materials or gel is disclosed. In some examples, the material can be used in communication, radar, or industrial applications or to reduce the cross section of aircrafts or ships. The gel can be used as an absorbing material is to dampen microwaves. For example, to reduce coupling between antennas, shielding of measurement system to remove disturbances from internal or external error sources, provide a matching between the antenna and the body. The absorbing material can be manufactured as a flexible and moldable gel from polymers, water, and mineral salt. By altering the ratios of the content different damping and mechanical properties of the gel can be obtained. The surface of the material is modified to densify the surface and to reduce the surface slipperiness, avoid evaporation from the gel and to enable disinfection of the surface.

The present disclosure is directed to compositions including a microemulsion comprising lecithin, a polysorbate, an alkyl polyglycoside, and optionally a solvent. Uses of the microemulsions are also disclosed.

Provided herein are mycelium materials and methods for production thereof. In some embodiments, a mycelium material includes: a cultivated mycelium material including one or more masses of branching hyphae, wherein the one or more masses of branching hyphae may be disrupted or pressed and/or a bonding agent may be combined with the cultivated mycelium material. Methods of producing a mycelium material are also provided.

A method and a mineral wool product include a multiple of lamellae, such as a sandwich panel core. The product includes a plurality of lamellae cut from a mineral wool web, and bonded together by applying an adhesive on the surfaces of two adjacent lamellae to form a web-like product, wherein the adhesive comprises at least one hydrocolloid.

The invention relates to an aqueous binder composition for mineral fibers comprising at least one polyelectrolytic hydrocolloid.