The present invention relates to an elastomeric composition, wherein the elastomeric composition comprises an additive selected from any one or a combination of fluorine and silicone compounds in the production of a hypoallergenic elastomeric article.

A latex composition including a latex (A) of a diene rubber (a) having a weight average molecular weight of 50,000 or more and 1,000,000 or less and containing an ethylenically unsaturated acid monomer unit; and a latex (B) of a diene rubber (b) having a weight average molecular weight of 500 or more and less than 50,000 and containing an ethylenically unsaturated acid monomer unit.

A latex composition including a latex (A) of a diene rubber (a) having a weight average molecular weight of 50,000 or more and 1,000,000 or less and containing an ethylenically unsaturated acid monomer unit; and a latex (B) of a diene rubber (b) having a weight average molecular weight of 500 or more and less than 50,000 and containing an ethylenically unsaturated acid monomer unit.

A carboxylic acid-modified nitrile-based copolymer latex includes a carboxylic acid-modified nitrile-based copolymer including: 65.5 wt % to 82.5 wt % of a conjugated diene-based monomer-derived unit, 15 wt % to 30 wt % of an ethylenic unsaturated nitrile-based monomer-derived unit, and 2.5 wt % to 4.5 wt % of an ethylenic unsaturated acid monomer-derived unit, wherein the carboxylic acid-modified nitrile-based copolymer latex satisfies General Formula 1:

1.0 mm.sup.2/s≤CV.sub.0≤3.0 mm.sup.2/s  [General Formula 1]

wherein CV.sub.0 represents a capillary viscosity of the carboxylic acid-modified nitrile-based copolymer latex which is measured in a swollen state in a methyl ethyl ketone solvent.

The present invention relates to a method of preparing reduced graphene oxide, incorporation of the reduced graphene oxide into polyisoprene latex to provide a polyisoprene latex graphene composite and elastomeric articles prepared using the polyisoprene latex-graphene composite. In particular, the reduction of graphene oxide is accomplished without the use of strong reducing agents and organic solvents and incorporation of the reduced graphene oxide into polyisoprene latex is accomplished using room temperature latex mixing method or hot maturation. The resultant composite exhibits good colloid stability and polyisoprene latex films produced from the composite exhibit good mechanical properties with improved ageing resistance.

The present invention relates to a method of preparing reduced graphene oxide, incorporation of the reduced graphene oxide into polyisoprene latex to provide a polyisoprene latex graphene composite and elastomeric articles prepared using the polyisoprene latex-graphene composite. In particular, the reduction of graphene oxide is accomplished without the use of strong reducing agents and organic solvents and incorporation of the reduced graphene oxide into polyisoprene latex is accomplished using room temperature latex mixing method or hot maturation. The resultant composite exhibits good colloid stability and polyisoprene latex films produced from the composite exhibit good mechanical properties with improved ageing resistance.

The invention provides a variety of novel devices, systems, and methods of utilizing mixed-ionic-electronic conductor (MIEC) materials adapted to function with an applied current or potential. The materials, as part of a circuit, are placed in contact with a part of a human or nonhuman animal body. A sodium selective membrane system utilizing the MIEC is also described.

The invention provides a variety of novel devices, systems, and methods of utilizing mixed-ionic-electronic conductor (MIEC) materials adapted to function with an applied current or potential. The materials, as part of a circuit, are placed in contact with a part of a human or nonhuman animal body. A sodium selective membrane system utilizing the MIEC is also described.

The present invention relates to a latex composition for dip molding, and such latex composition includes: a carboxylic acid-modified nitrile-based copolymer latex; and a reactive compound having three or more branched chains and a reactive group at a terminal of each of the branched chains, wherein the reactive group is one or more selected from the group consisting of an amine group, a hydroxy group, an epoxy group, a glycidyl group, and an isocyanate group.

A latex composition for dip forming, and more particularly, to a latex composition for dip forming includes carboxylic acid-modified nitrile-based copolymer latex; and a phenolic emulsifier, wherein the phenolic emulsifier is included in an amount of 0.08 parts by weight to 6 parts by weight (based on a solid content) based on 100 parts by weight of the carboxylic acid-modified nitrile-based copolymer latex. A method for preparing the latex composition and a formed article produced using the latex composition are also provided.