Provided is a hard coating film for foldable displays that does not form creases or cracks in the folding portion, and that is also excellent in reducing iridescent colors (interference mottling) caused by fine cracks in an easy-to-adhere resin layer or other layers. The hard coating film for foldable displays contains a polyester film having a thickness of 10 to 80 μm, an easy-to-adhere resin layer, and a hard coating layer, the easy-to-adhere resin layer and the hard coating layer being stacked in this order on at least one surface of the polyester film, wherein the easy-to-adhere resin layer is a cured product of a composition containing at least one compound selected from the group consisting of titanium compounds and zirconium compounds and a polyester resin, and the polyester film having the easy-to-adhere resin layer stacked thereon but not yet having the hard coating layer stacked thereon satisfies characteristics within specific ranges.

Provided is a composition capable of forming a cured product having excellent adhesion to a substrate, hardness, scratch resistance, and chemical resistance. The composition of the present disclosure includes a polyol compound (A) and an isocyanate compound (B), the polyol compound (A) containing a compound (a1) having a number average molecular weight calibrated with polystyrene standards of less than 800 and being represented by Formula (1), where R.sup.1 to R.sup.3 are a group represented by Formula (1a); and the isocyanate compound (B) containing a compound (b) represented by Formula (2), where L.sup.1 to L.sup.3 are a hydrogen atom, an NCO group, or an alkyl group having from 1 to 10 carbon atom(s) and having a group represented by Formula (2′).

The present disclosure relates to a polyester resin blend, a polyester film and a preparation method of the same. The polyester resin blend is capable of providing a heat shrinkable label that is transparent and has excellent shrinkage even if it contains recycled polyethylene terephthalate as well as virgin polyethylene terephthalate. In addition, the heat shrinkable label can be reused while attached to a PET container, etc., and is expected to be useful for providing continuously usable plastics that have been recently attracting attention.

The present invention relates to a peelable coating film having silica particles fixed to a surface thereof, a coating material for hydrophilic-coating-film formation which includes colloidal silica, an alkali metal silicate, and an aqueous medium, and a coating-material set including the coating material for hydrophilic-coating-film formation and a coating material for peelable-coating-film formation including an aqueous dispersion type resin composition.

A laminate including a base material and a resin layer provided on at least one surface of the base material. The resin layer is formed of a heat- or active energy ray-curable resin composition, and an outermost surface of the laminate on the one surface side of the base material has an unevenness containing a wrinkle structure.

A method for producing a thermoplastic resin composition, including: melt-kneading a mixture containing a polyester resin (A), a starch material (B), and water; and dewatering the melt-kneaded mixture to reduce a water content to 5% by weight or less. The mixture contains 25 to 55 parts by weight of the water per 100 parts by weight of a solid content of the starch material (B). A film containing a thermoplastic resin composition containing a biodegradable polyester resin (A) and a starch material (B), wherein the starch material (B) has a number-average particle diameter of 3 μm or less.

The present invention relates to biodegradable polyester resin, wherein the ratio (X/Y) of the number (X) of the first repeat unit comprising a first diol residue and an aromatic dicarboxylic acid residue to the number (Y) of the second repeat unit comprising a second diol residue and an aliphatic dicarboxylic acid residue is 0.8 to 3.0, and the impact strength index is 2.2 or more, and to a process for preparing the same. The biodegradable polyester resin can further enhance the impact absorption energy and hardness as compared with conventional biodegradable resins. Further, it can provide a biodegradable polyester film or molded article that is excellent in impact resistance, durability, and formability, along with biodegradability. Thus, it can be utilized in more diverse fields.

The present invention relates to a biodegradable polyester resin, in which the first repeat unit comprising a first diol residue and an aromatic dicarboxylic acid residue and the second repeat unit comprising a second diol residue and an aliphatic dicarboxylic acid residue satisfy a ratio of the number of repeat units in a specific range, and the softness index of the resin satisfies a specific range, and to a process for preparing the same. Since the biodegradable polyester resin can provide a biodegradable polyester sheet or film that can be simultaneously enhanced in productivity, processability, and moldability and is excellent in tensile strength, tear strength, and friction coefficient and excellent in biodegradability and water degradability, it can be utilized in more diverse fields.

A method of applying a gas-impermeable coating includes forming a polyelectrolyte complex suspension. The polyelectrolyte complex suspension is applied to a substrate. The substrate having the polyelectrolyte complex applied thereon is treated. The treating reduces salt content of the polyelectrolyte complex. The treating results in a gas-impermeable coating being formed on the substrate.

The present invention relates to ethylene-vinyl alcohol copolymer particles, comprising an ethylene-vinyl alcohol copolymer having an ethylene unit content of 1 mol % or more and less than 20 mol %, a viscosity-average polymerization degree of 200 to 5000, and a saponification degree of 80 to 99.99 mol %, wherein a crystallinity in water Cw (30° C.) at 30° C. and a crystallinity in water Cw (70° C.) at 70° C. as determined by pulse NMR satisfy formula (I). There is thus provided ethylene-vinyl alcohol copolymer particles having excellent solubility in water and excellent gas barrier performance.