A method of preparing an aqueous dispersion of an ethylene-carboxylic acid copolymer according to exemplary embodiments of the present invention includes: mixing 30% by weight or more of an ethylene-(meth)acrylic acid copolymer, a basic compound, and water to form a mixed solution; and adding an inorganic salt compound to the mixed solution. Therefore, the aqueous dispersion of the ethylene-carboxylic acid copolymer may be effectively dispersed.

The present application discloses a polyvinyl alcohol composition, as well as a preparation method and polyvinyl alcohol medical catheter containing thereof, wherein raw materials include the following components: 60-90 parts of polyvinyl alcohol; 0.1-3 parts of glutaraldehyde; and the polyvinyl alcohol composition is made by mixing the polyvinyl alcohol in molten state with the glutaraldehyde in an acidic environment.

The present application discloses a polyvinyl alcohol composition, as well as a preparation method and polyvinyl alcohol medical catheter containing thereof, wherein raw materials include the following components: 60-90 parts of polyvinyl alcohol; 0.1-3 parts of glutaraldehyde; and the polyvinyl alcohol composition is made by mixing the polyvinyl alcohol in molten state with the glutaraldehyde in an acidic environment.

The present application discloses a polyvinyl alcohol composition, as well as a preparation method and polyvinyl alcohol medical catheter containing thereof, wherein raw materials include the following components: 60-90 parts of polyvinyl alcohol; 0.1-3 parts of glutaraldehyde; and the polyvinyl alcohol composition is made by mixing the polyvinyl alcohol in molten state with the glutaraldehyde in an acidic environment.

A composition for forming an artificial sold electrolyte interphase (SEI) layer includes a polymer, an artificial SEI forming salt, and a solvent. The polymer and the artificial SEI forming salt are dispersed in the solvent.

A composition for forming an artificial sold electrolyte interphase (SEI) layer includes a polymer, an artificial SEI forming salt, and a solvent. The polymer and the artificial SEI forming salt are dispersed in the solvent.

Provided is a cover for asphalt including an asphalt emulsion and a method of paving asphalt using the same, and specifically, to a cover for asphalt, which may facilitate adhesion between an existing asphalt pavement layer and a new asphalt pavement layer and substitute for a tack coat. The cover for asphalt prevents an asphalt emulsion from being damaged by heavy vehicles or construction equipment moving for application of a new pavement layer, and allows omitting separate asphalt emulsion application and curing processes before application of the new asphalt layer.

Provided is a modifier for a polyester-based resin film, containing alkali metal salt of alkylaryl sulfonic acid (A) in which an alkyl group includes 6 to 22 carbons, and an inorganic salt (B), the inorganic salt (B) being at least one selected from sodium sulfate, potassium sulfate, lithium sulfate, sodium chloride, potassium chloride, and lithium chloride.

Provided is a modifier for a polyester-based resin film, containing alkali metal salt of alkylaryl sulfonic acid (A) in which an alkyl group includes 6 to 22 carbons, and an inorganic salt (B), the inorganic salt (B) being at least one selected from sodium sulfate, potassium sulfate, lithium sulfate, sodium chloride, potassium chloride, and lithium chloride.

Polyamide resin that comprise one or more polyamides and a stabilizer component containing an copper complex and a copper salt is disclosed for improving the heat age performance for an article. The combination of a copper complex and a copper salt retains the mechanical properties of the article.