A conductive polymeric composition includes, based on a total weight of the conductive polymeric composition, 0.1 wt % to 10 wt % of carbon nanotubes, 0.2 wt % to 4 wt % of a first component, 0.1 wt % to 4 wt % of a second component made by esterification of a C.sub.16-C.sub.30 fatty acid with a polyol compound, and the balance being a polymeric component. When the first component is a first polymer obtained from polycondensation of an aromatic diacid compound and an aliphatic glycol compound, the polymeric component is a polyester. When the first component is a second polymer obtained from polycondensation of a lactam compound, a diamine compound and a dicarboxylic acid compound, the polymeric component is a polyamide.

A composition and method for fabricating graphitic nanocomposites in solid state matrices is presented. The process for fabricating graphitic nanocomposites in solid state matrices may include selecting one or a mixture of specific graphitic nanomaterials. The graphitic nanomaterial(s) may be functionalizing with a moiety similar to the building blocks of the solid state matrices. The functionalized graphitic nanomaterials are mixed with the building blocks of the solid state matrices. The mixture may be cured, which causes in situ formation of the sol-gel solid state matrices that entraps and/or covalently links with the graphitic nanomaterials during the network growing process. This process allows the nanomaterials to be introduced into the matrices homogeneously without forming large aggregations.

Provided is a shaped article having excellent jet blackness and also, by transmitting light with specific wavelength, can display a specific color. The shaped article is a shaped article for which the L* value of reflected light is 35 or less and the total light transmittance is 1% or less, wherein, in a wavelength range of 380 nm or more to 780 nm or less, the wavelength at which the maximum value of light transmittance is exhibited is in a range of 380 nm or more to less than 680 nm, and the expressions T.sub.α≧0.1 % and 0 %≦T.sub.βT.sub.α/2 are satisfied, or, in a wavelength range of 380 nm or more to 780 nm or less, the wavelength at which the maximum value of light transmittance is exhibited is in a range of 680 nm or more to 780 nm or less, and the expressions T.sub.β≧10 % and 0 % T.sub.α≦T.sub.β/2 are satisfied. In the expressions, T.sub.a is the maximum value of light transmittance in a wavelength range of 380 nm or more to less than 680 nm, and T.sub.β is the maximum value of light transmittance in a wavelength range of 680 nm or more to 780 nm or less.

Provided is a powder material for forming a three-dimensional object, the powder material containing granulated particles containing: a resin; and inorganic particles of which primary particles have a volume average particle diameter of 1 micrometer or less, wherein the granulated particles have a volume average particle diameter of 10 micrometers or greater but 70 micrometers or less and a BET specific surface area of 6 m.sup.2/g or greater but 8 m.sup.2/g or less.

The present invention relates to a thermoplastic resin composition and a molded article including the same. More particularly, the present invention relates to a thermoplastic resin composition including 100 parts by weight of a base resin that includes an acrylic graft copolymer and an acrylic non-graft copolymer; and greater than 0.3 parts by weight and less than 1.2 parts by weight of a zinc-based antimicrobial agent, and a molded article including the same, wherein the zinc-based antimicrobial agent has an average particle diameter of greater than 3 μm to 30 μm. In accordance with the present invention, a thermoplastic resin composition providing superior transparency and excellent initial antimicrobial activity and persistent antimicrobial activity while providing the same mechanical properties as existing resin compositions, and a molded article including the same are provided.

The present invention relates to a novel polyorganosiloxane capable of producing a copolycarbonate having improved hardness and to a copolycarbonate prepared by using the same. The novel polyorganosiloxane according to the present invention can be used as a monomer of a copolycarbonate, and it can exhibit improved hardness and chemical resistance simultaneously while maintaining the intrinsic properties of copolycarbonate due to the alkylene or isosorbide-derived structure included in the formula thereof.

A method of forming a three-dimensional object, wherein said three-dimensional object is an insert for use between a helmet and a human body, is described. The method may use a polymerizable liquid, or resin, useful for the production by additive manufacturing of a three-dimensional object, comprising a mixture of (i) a light polymerizable liquid first component, and (ii) a second solidifiable component that is different from said first component.

A method of forming a three-dimensional object, wherein said three-dimensional object is an insert for use between a helmet and a human body, is described. The method may use a polymerizable liquid, or resin, useful for the production by additive manufacturing of a three-dimensional object, comprising a mixture of (i) a light polymerizable liquid first component, and (ii) a second solidifiable component that is different from said first component.

A method of forming a three-dimensional object is carried out by: (a) providing a carrier and an optically transparent member having a build surface, the carrier and the build surface defining a build region therebetween; (b) filling the build region with a polymerizable liquid, the polymerizable liquid including a mixture of (i) a light polymerizable liquid first component, and (ii) a second solidifiable component that is different from the first component; (c) irradiating the build region with light through the optically transparent member to form a solid polymer scaffold from the first component and also advancing the carrier away from the build surface to form a three-dimensional intermediate having the same shape as, or a shape to be imparted to, the three-dimensional object, and containing the second solidifiable component carried in the scaffold in unsolidified and/or uncured form; and (d) concurrently with or subsequent to the irradiating step, solidifying and/or curing the second solidifiable component in the three-dimensional intermediate to form the three-dimensional object.

Polycarbonate block copolymers are provided, which have: (A) a polyester block of chemical formula 1; and (B) a polycarbonate block derived from a dihydric phenol of chemical formula 3 compound and phosgene. The copolymers may be prepared by (1) polymerizing ester oligomers to form a compound of chemical formula 1; and (2) copolymerizing the ester oligomer obtained in (1) with a polycarbonate oligomer prepared from a dihydric phenol compound of chemical formula 3 and phosgene, in the presence of a polymerization catalyst. The block copolymer may have a viscosity average molecular weight (Mv) of 10,000 to 200,000. The thermoplastic copolymer resins have excellent heat resistance, transparency, impact strength, and fluidity, and thus can be usefully applied in various products, including office devices, electric/electronic products, and automotive interior/exterior parts;

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