A method for preparing a color masterbatch with a natural dye is disclosed. The new method uses a phase change material tetradecane as one of the solvents to extract the natural dye, the extracted natural dye as a core material, and polybutylene succinate as a wall material to microencapsulate the natural dye containing the phase change material by a solvent evaporation method to prepare natural dye microcapsules, then melt-blends with a carrier resin, extrudes and granulates to obtain the color masterbatch with the natural dye. The microencapsulation improves the thermal stability of natural dye and compatibility with carrier resin The obtained color masterbatch with natural dye has excellent heat resistance, and the fabric obtained after spinning with it has good color fastness to hot pressing.

A core/shell polymer material suitable for three-dimensional printing is provided. The core/shell polymer material may include at least one amorphous polymer as a core particle and at least one semicrystalline polymer as a shell material surrounding the core particle.

A method of producing an injectable gel product is provided, comprising (a) cross-linking a first glycosaminoglycan (GAG) with a first crosslinking agent to produce a gel, wherein the charging ratio of crosslinking agent to disaccharide unit is below 0.15; (b) preparing particles of the gel; (c) mixing the glycosaminoglycan (GAG) gel particles with a second GAG to provide a mixture; (d) cross-linking the mixture with a second crosslinking agent to obtain cross-linking between the GAGs of the second, outer phase, thereby providing a gel having a first, inner phase of the cross-linked GAG gel particles, embedded in a gel of the second GAG outer phase; and (e) preparing injectable particles, each such particle containing a plurality of the cross-linked GAG gel particles of the first, inner phase. An injectable gel product, an aqueous composition, and a pre-filled syringe as also provided.

The present invention relates to a superabsorbent polymer which exhibits more improved liquid permeability while maintaining excellent absorption performance, and suppresses aggregation and caking of particles even under high temperature/high humidity conditions, and to a method for producing the same. The super absorbent polymer comprises: a base polymer powder including a first crosslinked polymer of a water-soluble ethylenically unsaturated monomer having at least partially neutralized acidic groups; and a surface crosslinked layer formed on the base polymer powder and including a second cross-linked polymer in which the first cross-linked polymer is further crosslinked via a surface cross-linking agent, wherein the super absorbent polymer includes aluminum sulfate dispersed in the surface crosslinked layer and alumina dispersed on the surface crosslinked layer.

The invention relates to a seeded particle of polyamide (PA) powder consisting of: a polyamide core with a D50 within the range from 15 to 60 μm, and a polyamide shell,
characterized in that the shell has an inherent viscosity in solution and a melting temperature which are respectively higher than those of the core.

A coated particle according to the present invention is a coated particle containing a conductive metal-coated particle having a metal film formed on a surface of a core material, the conductive metal-coated particle coated with an insulation layer containing a polymer, wherein the insulation layer has a phosphonium group. The insulation layer preferably contains an insulating fine particle and the fine particle has a phosphonium group on a surface thereof, or the insulation layer is preferably a film having a phosphonium group. In addition, the metal is preferably at least one selected from nickel, gold, nickel alloys, and gold alloys. The polymer constituting the insulation layer is preferably at least one polymerized product selected from styrenes, esters, and nitriles.

A powdery and/or granular material which achieves excellent dispersibility of fine polymer particles in a matrix resin is provided. The powdery and/or granular material contains specific fine polymer particles (A) and a specific resin (B), and has pores with an average pore diameter of 0.03 μm to 1.00 μm, where a total volume of the pores is not less than 0.0600 mL/g.

The present invention relates to self-supported elastomeric film made from a composition comprising polymer latex particles bearing ethylenically unsaturated groups pending from the polymeric backbone of the latex particles wherein the ethylenic unsaturation is separated from the polymeric backbone by at least 3 chemical bonds, to an article comprising the self-supported elastomeric film and to a method for making a self-supported elastomeric film from a composition comprising said polymer latex particles.

The invention relates to a bicycle frame made by injection molding pellets of a long glass fibre reinforced polypropylene composition having a core containing glass fibres and an impregnating agent and a sheath of polypropylene surrounding said core, wherein the pellets have an average length of at least 1 mm, the amount of the glass fibers is 10 to 70 wt % with respect to the composition and the polypropylene has a flexural modulus determined according to ASTM D790A of at least 1000 N/mm.sup.2.

A composite particle comprising: a core particle containing at least one type of polymer; and micronized cellulose that has an anionic functional group, is inseparably bonded to the core particle, and is disposed on a surface of the core particle, wherein an organic onium cation or an ammonium ion is bonded to at least a part of the micronized cellulose.