The present application relates to aziridine functional compounds with reduced genotoxicity and good crosslinking efficiency, for use in the preparation of, for example, coatings.

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A technology which exhibits a low internal resistance and good output characteristics is provided.

An aqueous polyurethane resin dispersion for a secondary battery separator includes an aqueous polyurethane resin dispersion containing a polyurethane resin dispersed in water, the polyurethane resin being obtained by reacting a polyol, a polyisocyanate compound, and a chain extender. The polyol contains a polycarbonate polyol. The polyurethane resin has a crosslink density of 0.02 mol/kg or more and 0.28 mol/kg or less.

A technology which exhibits a low internal resistance and good output characteristics is provided.

An aqueous polyurethane resin dispersion for a secondary battery separator includes an aqueous polyurethane resin dispersion containing a polyurethane resin dispersed in water, the polyurethane resin being obtained by reacting a polyol, a polyisocyanate compound, and a chain extender. The polyol contains a polycarbonate polyol. The polyurethane resin has a crosslink density of 0.02 mol/kg or more and 0.28 mol/kg or less.

The present invention relates to processes for the manufacture of aqueous polyurethane dispersions that can be used as adhesives or coatings, are solvent free and have low VOC emissions, and are environmentally friendly. Also encompassed are the dispersions as such, compositions containing them and their use as coatings and adhesives.

The present invention relates to processes for the manufacture of aqueous polyurethane dispersions that can be used as adhesives or coatings, are solvent free and have low VOC emissions, and are environmentally friendly. Also encompassed are the dispersions as such, compositions containing them and their use as coatings and adhesives.

The hollow microballoons of the invention are hollow microballoons formed of a resin produced by polymerizing a polymerizing composition that contains a polyrotaxane monomer having at least two polymerizable functional groups in the molecule and a polymerizable monomer other than the polyrotaxane monomer having at least two polymerizable functional groups in the molecule. Using the hollow microballoons of the invention, a CMP polishing pad having excellent polishing characteristics and durability can be provided.

The hollow microballoons of the invention are hollow microballoons formed of a resin produced by polymerizing a polymerizing composition that contains a polyrotaxane monomer having at least two polymerizable functional groups in the molecule and a polymerizable monomer other than the polyrotaxane monomer having at least two polymerizable functional groups in the molecule. Using the hollow microballoons of the invention, a CMP polishing pad having excellent polishing characteristics and durability can be provided.

An aqueous polyurethane dispersion and a textile are provided. The aqueous polyurethane dispersion includes water and a bio-based polyurethane. The bio-based polyurethane includes bio-based polyester polyol, hydrophilic polyol, isocyanate, and hydrophilic compound. A weight ratio of the bio-based polyester polyol to the hydrophilic polyol is 2.7:1 to 5.3:1.

An aqueous polyurethane dispersion and a textile are provided. The aqueous polyurethane dispersion includes water and a bio-based polyurethane. The bio-based polyurethane includes bio-based polyester polyol, hydrophilic polyol, isocyanate, and hydrophilic compound. A weight ratio of the bio-based polyester polyol to the hydrophilic polyol is 2.7:1 to 5.3:1.

The present invention relates to an aqueous dispersion of polyurethane and a method for preparing the same, use thereof in a coating composition, and a coated product. The aqueous dispersion of polyurethane comprises a polyurethane polymer which is obtained by a reaction of a reaction mixture comprising a polyurethane prepolymer A) and an isocyanate-reactive component B), said polyurethane prepolymer A) being obtained by a reaction comprising the following components: A1) a polyisocyanate which has a functionality of not less than 2; and A2) a multifunctional polyether polyol which has a functionality of not less than 3 in an amount of 1% to 30% by weight, based on the amount of said reaction mixture as 100% by weight. The aqueous dispersion of polyurethane according to the present invention is well dispersed, and is capable of forming a coat with good waterproof, moisture permeability and washing resistance.