The present technology relates to a latex composition for dip molding comprising a carboxylic acid-modified nitrile-based copolymer latex satisfying General Formulas 1 and 2, wherein the carboxylic acid-modified nitrile-based copolymer includes a conjugated diene-based monomer-derived unit, an ethylenic unsaturated nitrile-based monomer-derived unit, and an ethylenic unsaturated acid monomer-derived unit, and a molded article.

The present technology relates to a latex composition for dip molding comprising a carboxylic acid-modified nitrile-based copolymer latex satisfying General Formulas 1 and 2, wherein the carboxylic acid-modified nitrile-based copolymer includes a conjugated diene-based monomer-derived unit, an ethylenic unsaturated nitrile-based monomer-derived unit, and an ethylenic unsaturated acid monomer-derived unit, and a molded article.

Provided are a carboxylic acid-modified nitrile-based copolymer latex composition, a preparation method thereof, a latex composition for dip-molding including the same, and an article molded by the same, the carboxylic acid-modified nitrile-based copolymer latex composition including: a carboxylic acid-modified nitrile-based copolymer, wherein the carboxylic acid-modified nitrile-based copolymer includes a 2-hydroxyethyl methacrylate monomer-derived repeating unit in an amount of more than 0.1 wt % to less than 12 wt %, and a coagulum in the carboxylic acid-modified nitrile-based copolymer latex composition has an amount of less than 1 wt %.

Provided are a carboxylic acid-modified nitrile-based copolymer latex composition, a preparation method thereof, a latex composition for dip-molding including the same, and an article molded by the same, the carboxylic acid-modified nitrile-based copolymer latex composition including: a carboxylic acid-modified nitrile-based copolymer, wherein the carboxylic acid-modified nitrile-based copolymer includes a 2-hydroxyethyl methacrylate monomer-derived repeating unit in an amount of more than 0.1 wt % to less than 12 wt %, and a coagulum in the carboxylic acid-modified nitrile-based copolymer latex composition has an amount of less than 1 wt %.

A first process produces poly(glycerol sebacate) urethane (PGSU)-based microparticles. The first process includes forming a first composition including a poly(glycerol sebacate) (PGS) resin and dispersing the first composition in a continuous fluid phase in the presence of an isocyanate crosslinker to produce PGSU-based microparticles. A second process also produces PGSU-based microparticles. The second process includes forming a first composition including a PGS resin, forming a second composition and combining the first composition and the second composition to produce PGSU-based microparticles, where at least one of the first and the second composition includes an isocyanate crosslinker. An extrusion-spheronization process of crosslinking includes extruding an extrudate including a crosslinkable compound into a continuous fluid phase in a spheronization bath and dispersing the extrudate in the continuous fluid phase to crosslink the crosslinkable compound, where at least one of the extrudate and the continuous fluid phase includes a crosslinker.

A first process produces poly(glycerol sebacate) urethane (PGSU)-based microparticles. The first process includes forming a first composition including a poly(glycerol sebacate) (PGS) resin and dispersing the first composition in a continuous fluid phase in the presence of an isocyanate crosslinker to produce PGSU-based microparticles. A second process also produces PGSU-based microparticles. The second process includes forming a first composition including a PGS resin, forming a second composition and combining the first composition and the second composition to produce PGSU-based microparticles, where at least one of the first and the second composition includes an isocyanate crosslinker. An extrusion-spheronization process of crosslinking includes extruding an extrudate including a crosslinkable compound into a continuous fluid phase in a spheronization bath and dispersing the extrudate in the continuous fluid phase to crosslink the crosslinkable compound, where at least one of the extrudate and the continuous fluid phase includes a crosslinker.

This invention addresses the need for efficient dry skin electrodes. Robust, flexible Mixed Ionic Electronic Conductor (MIEC) electrodes were prepared by an aqueous solution route resulting in electrically conductive networks of carbon nanotubes (CNTs) and ionically conductive elastic matrix. The flexible electrode was characterized in terms of conductivity, ionic charge transfer resistance, and water uptake. The flexible electrode maintained low resistance even after multiple cycles of 50% extension and contraction.

This invention addresses the need for efficient dry skin electrodes. Robust, flexible Mixed Ionic Electronic Conductor (MIEC) electrodes were prepared by an aqueous solution route resulting in electrically conductive networks of carbon nanotubes (CNTs) and ionically conductive elastic matrix. The flexible electrode was characterized in terms of conductivity, ionic charge transfer resistance, and water uptake. The flexible electrode maintained low resistance even after multiple cycles of 50% extension and contraction.

This application relates to synthetic elastomeric articles, such as gloves, comprising the cured product of a synthetic latex composition, the synthetic latex composition comprising a synthetic carboxylated polymer and a cross-linking composition, the cross-linking composition comprising an aqueous solution of a negatively charged multivalent metal complex ion having a pH of at least 9.0. Also described are compositions for forming the articles, and methods for making the articles, based on the use of the described cross-linking composition. The articles, compositions and methods contain a second cross-linking agent comprising either (a) sulphur and a sulphur donor, (b) a multivalent metal oxide or ionic cross-linking agent, (c) sulphur, a sulphur donor and an ionic cross-linking agent, or (d) sulphur donor.

This application relates to synthetic elastomeric articles, such as gloves, comprising the cured product of a synthetic latex composition, the synthetic latex composition comprising a synthetic carboxylated polymer and a cross-linking composition, the cross-linking composition comprising an aqueous solution of a negatively charged multivalent metal complex ion having a pH of at least 9.0. Also described are compositions for forming the articles, and methods for making the articles, based on the use of the described cross-linking composition. The articles, compositions and methods contain a second cross-linking agent comprising either (a) sulphur and a sulphur donor, (b) a multivalent metal oxide or ionic cross-linking agent, (c) sulphur, a sulphur donor and an ionic cross-linking agent, or (d) sulphur donor.