A method for a carbon nanofiber composite, which can obtain a carbon nanofiber composite with high productivity and high activity, and which does not require removal of fluidizing materials or dispersing materials, provides a carbon nanofiber composite having improved dispersibility. The method for producing the carbon nanofiber composite includes bringing at least one catalyst and at least one particulate carbon material into contact with at least one gas containing at least one gaseous carbon-containing compound while mechanically stirring the catalyst and the particulate carbon material in a reactor. The carbon nanofiber composite includes carbon nanofibers and at least one particulate carbon material, wherein the particulate carbon material has 70% by volume or more of particles with a particle diameter of 1 μm or less, and/or a median diameter D50 by volume of 1 μm or less.

Provided is a silicone resin coated silicone elastomer particle which can be easily produced on an industrial scale, has superior dispersibility and oil absorptivity in a curable organic resin such as an epoxy resin, and has superior workability due to low secondary aggregation compared to conventional silicone elastomer particles. Also provided are applications containing the particles such as organic resin additives, organic resins, coating compositions or coating agent compositions, and cosmetic compositions. The silicone resin coated silicone elastomer particles have part or all of their surface coated with a silicone resin made up of two types of siloxane units. The siloxane units are selected from D units represented by R.sub.2SiO.sub.2/2, T units represented by RSiO.sub.3/2, and Q units represented by SiO.sub.4/2. The particles also have a structure in which at least two silicon atoms in the particles are cross-linked by a silalkylene group with 2 to 20 carbon atoms.

The present invention relates to an anti-tack formulation of high solids content that uses effective amounts of a fine particle size talc, a water soluble cationic polymer, one or more nonionic surfactants, and one or more alkali metal fatty acid soaps. The high solids content anti-tack formulation is capable of being easily shipped to a customer's location and is stable and easily pumped after shipment to a customer. The high solids content anti-tack formulation can be diluted to a low solids content formulation for use in anti-tack applications, particularly rubber slab dipping applications. The anti-tack formulation provides improved anti-tack performance when coating uncured rubber products.

A water-based surface treatment agent is provided. The water-based surface treatment agent is suitable to be coated onto a surface of a synthetic leather. The water-based surface treatment agent at least includes waterborne polyurethane, silicone powder, and water. Based on 100 parts by weight of the water-based surface treatment agent, a content of the waterborne polyurethane is within 15 to 35 parts by weight, and a content of the silicone powder is within 3 to 20 parts by weight. A non-volatile matter content of the waterborne polyurethane is within a range from 20 wt % to 30 wt %. Each grain of the silicone powder has a particle size within a range from 0.2 μm to 15 μm, a specific gravity within a range from 0.9 to 1.5, a water content within a range from 0.1% to 0.5%, and a hardness (A) within a range from 30 to 90.

A light reflective coating for an audio product, including the following parts by weight of constituents: 15-35 parts by weight of resin, 15-35 parts by weight of glass beads, 20-40 parts by weight of aluminum beads, 5-15 parts by weight of a solidifying agent, 10-25 parts by weight of a solvent and 1-8 parts by weight of an additive. The present invention further includes a method for preparing the light reflective coating for an audio product, adopts organic macromolecular materials having good comprehensive performances to perform optimization and combination, and improves the light reflective performance of the combination. The coating prepared with the method of the present invention has a flat, fine and smooth surface, has good gloss retention, and can satisfy the use requirements of an audio product coating for anti-corrosion, anti-weathering and the like.

The present inventive concept relates to a copper based conductive paste and its preparation method. The copper based conductive paste comprises a copolymer-copper composite comprising an imidazole-silane copolymer with partially cross-linked structure and a copper powder, a solvent, a binder and an additive. The imidazole-silane copolymer with partially cross-linked structure is introduced into the copper powder whose surface is treated by a hydrochloric acid aqueous solution and a phosphoric acid aqueous solution. The imidazole-silane copolymer is polymerized by using an imidazole monomer represented by following formula 1, a silane monomer represented by following formula 2 and a cross-linking agent.

##STR00001##

In Formula 1, X represents a hydrogen atom (H) or a methyl group (—CH.sub.3), and R.sub.1 represents a vinyl group or an allyl group.

##STR00002##

In Formula 2, Y represents a methoxy group, a 2-methoxy ethoxy group or an acetoxy group, and R.sub.2 represents a vinyl group.

Disclosed are an anti-glare coating resin composition and an anti-glare coating film including the same. Specifically, provided are an anti-glare coating resin composition that includes a siloxane resin containing an epoxy group and an acrylic group, and further includes organic or inorganic particles, and thus ensures hardness, scratch resistance and processability, and provides anti-glare property by introduction of particles, and an anti-glare coating film produced using the same. Also, it is possible to realize hardness, abrasion resistance and anti-glare property of a film resin prepared using the resin composition and a film produced using the same.

The present invention provides an organic-inorganic composite particle that is excellent in the reflectivity of visible light and near infrared light, and has high light diffusing property and opacifying property, a method for producing the same, and use thereof. More specifically, the present invention relates to an organic-inorganic composite particle comprising an outer shell composed of a crosslinked polymer, and a cavity that is partitioned with the outer shell, wherein the composite particle contains, inside the cavity, a porous structure in which silica particles as a first inorganic particle are interconnected, and a second inorganic particle other than a silica particle, and has a volume average particle diameter of 0.5 to 100 μm, a method for producing the same, and use thereof.

The present disclosure relates generally to vapor retarding building materials and methods for making them. The present inventors have found simple and cost-efficient materials that have low water vapor permeability at low relative humidities and that can be provided as a coating on a building material substrate. Notably, in many embodiments, the materials can have high water vapor permeability at high relative humidities. In one embodiment, the disclosure provides vapor retarding articles comprising a building material substrate; and a polymeric coating layer coated on the building material substrate, the polymeric coating layer comprising an inorganic hydrophilic particulate filler dispersed in a continuous organic phase comprising a hydrophobic polymer, wherein the content of the filler is from about 30% to about 85% by weight of the polymeric coating layer, the vapor retarding article configured to have a water vapor permeance of no more than about 1 Perm at 25% relative humidity.

This invention relates to a defoamer active. The defoamer active may include hydrophobized silica particles obtained by treating silica particles with a hydrophobilizing agent. The silica particles may have a BET surface of less than about 150 m.sup.2/g, a surface pH of at least about 10, and a median particle size ranging from about 2 μm to about 50 μm. The carbon content of the hydrophobized silica particles may not be more than 3%.