A coating liquid includes: ultrafine zinc oxide particles; a polyester resin; an ammonium polycarboxylate salt; and water, in which an amount of the ammonium polycarboxylate salt is from 1 to 35 mass % with respect to that of the ultrafine zinc oxide particles.

An adhesive for polyolefin used for an extrusion-formed multilayered structure that includes, at least, a propylene type resin layer and an ethylene type resin layer, the adhesive for polyolefin comprising an olefin resin that has methyl branches at a ratio of 10 to 200 per 1000 carbon atoms on a main chain thereof.

In the present disclosure, there are provided a vinyl alcohol-based copolymer including a first repeating unit derived from an olefin, a second repeating unit containing a hydroxyl group, and a third repeating unit containing a cyanoalkyloxy group formed by a reaction of the repeating unit containing a hydroxyl group and an unsaturated nitrile-based compound, wherein the third repeating unit is included in an amount of 2 mol % or more and less than 10 mol % with respect to 100 mol % of a total amount of the second repeating unit and the third repeating unit; a method for preparing the same; and a gas barrier film including the same. The vinyl alcohol-based copolymer has excellent moisture stability, thereby exhibiting excellent gas barrier properties even in a humid environment.

Described herein are geomembranes with improved chemical, physical, and mechanical properties. In one aspect, the geomembrane includes polyethylene, a phenolic antioxidant, a phosphite antioxidant, a hindered amine light stabilizer, and carbon black. Also described herein are methods for making the geomembranes described herein.

Provided is an ethylene-vinyl alcohol copolymer composition having improved oxygen barrier properties, wherein the ethylene-vinyl alcohol copolymer composition comprises an ethylene-vinyl alcohol copolymer; and a manganese content of about 0.01 ppm to 0.49 ppm.

A degradable EVOH high-barrier composite film, characterized in that the materials of various layers in the composite film all obtain approximately-consistent biodegradability by introducing biomass, and the additive amount of the additive master batch in the materials of each layer is controlled within the range of 0.3-15% of the total mass of the materials of the corresponding layer; the hydrophilic activity of the hydrophilic groups in the additive master batch should be greater than or equal to that of the hydrophilic groups in the materials of each layer; by adding the additive master batch, the mole ratios of the hydrophilic groups to carbon atoms of the materials of various layers tend to be consistent, namely, the bioactivities tend to be consistent, so that the degradation rates of the materials of various layers in the composite film tend to be consistent. The present invention makes contribution to obtaining approximately-consistent bioactivities and approximately-consistent biodegradation rates by balancing the mole ratios of the hydrophilic groups to carbon atoms in the materials of various layers, and the appearance, the functions and the physical and mechanical properties of a product remain unchanged.

A resin composition, comprising: a thermosetting resin that has a mesogenic group in a molecule and that is capable of forming a smectic structure via a curing reaction; and mica.

[Problem] To provide a film forming composition and a film forming method capable of forming a film excellent in gas barrier properties. [Means for Solution] A film forming composition comprising a polysilazane, an organic solvent and an additive having a specific structure, and a film forming method comprising applying the composition on a substrate and exposing the composition to light. This specific additive is represented by a specific general formula among those having a nonconjugated cyclic structure composed of atoms selected from the group consisting of carbon, nitrogen and oxygen in the structure.

A polytetrafluoroethylene film for electronic components, characterized in that the polytetrafluoroethylene film can have a density of 1.40 g/cm.sup.3 or higher and an air impermeability of 3,000 seconds or higher.

A flexible conduit used for transportation of hydrocarbon fluids for off-shore and on-shore oil and gas applications includes an inner pressure sheath, at least one reinforcing layer at least partially disposed around the pressure sheath, an outer protective sheath at least partially disposed around the at least one reinforcing layer, and optionally a thermally insulating layer disposed between the at least one reinforcing layer and the outer protective sheath. At least one of the inner pressure sheath, outer protective sheath, and the thermally insulating layer is manufactured using a thermoplastic blend (TPB) composition. The TPB compositions disclosed herein are useful for the formation of at least one polymer layer of the thermoplastic umbilical hoses used for transportation of hydrocarbon fluids.