Abstract: The invention relates to a dispersion and also to a method for coating objects, in particular heat exchanger structures, in which this dispersion is applied on a carrier structure and is crosslinked and/or made into a film with formation of a layer. Likewise, the invention relates to heat exchanger structures coated in this way. The dispersions according to the invention can likewise be used for coatings in the construction of chemical plants and also in medical technology.

Abstract: The present invention relates to a copolymer (A) having a glass transition temperature Tg of at least ?30° C. obtainable by copolymerization of a mixture of olefinically unsaturated monomers (a) in at least one organic solvent and in the presence of at least one initiator, where the mixture of monomers (a) to be polymerized comprises (a1) 10 to 60 mol % of at least one monomer of the formula (I) below where R1=C1 to C4 alkoxy, R2=C1 to C4 alkyl, and m=0 to 2, and (a2) 40 to 90 mol % of at least one olefinically unsaturated monomer selected from the group consisting of monomers of the formulae H2C?CH2—(C?O)—O—Rx, H2C?CH(CH3)—(C?O)—O—Rx, and H2C?CH2—O—(C?O)—Rx, where Rx is an alkyl radical having 1 to 20 carbon atoms, and where the sum total of the molar fractions of the monomers (a1) and (a2), based on the total molar amount of monomers (a) used, is at least 90 mol %, and where the copolymerization is carried out at a temperature from 60 to 200° C. and at a pressure of at least 2 bar.

Abstract: It is intended to provide a resin composition that serves as a raw material for a printed circuit board excellent in heat resistance after moisture absorption and is excellent in moldability. The resin composition of the present invention contains a maleimide compound, a silane compound having a carbon-carbon unsaturated bond and a hydrolyzable group or a hydroxy group, a silane compound having an epoxy skeleton and a hydrolyzable group or a hydroxy group, and an inorganic filler.

Abstract: Provided is a method for producing an organopolysiloxane emulsion composition which contains an organopolysiloxane having a trialkyl group at a terminal thereof and having a viscosity of 50,000 mm2/s or more at 25° C., within a shorter time compared with the conventional methods. A method for producing an emulsion composition which contains an organopolysiloxane having a viscosity of 50,000 mm2/s or more at 25° C. and capped with a trialkylsilyl group, said method comprising: (I) emulsifying a mixture comprising (A) an organopolysiloxane, (B) a nonionic surfactant, (C) an anionic surfactant, (D-1) an acidic compound and (E-1) water to prepare an emulsion composition; (II) adding (D-2) an acidic compound and (E-2) water to the emulsion composition to perform emulsion polymerization; and (III) adding 0.001 part by mass or more of (F) a compound to the resultant product to perform emulsion polymerization again.

Abstract: A powder composition suitable for use in laser sintering for printing a three-dimensional object. The powder composition includes a polyaryletherketone (PAEK) powder having a plurality of particles. The plurality of particles having a mean diameter of D50. The composition includes a plurality of carbon fibers having a mean length L50. L50 is greater than D50. The particles are substantially non-spherical. A portion of the carbon fiber is embedded into the particle via high intensity mixing.

Abstract: The present invention relates to a modification monomer and a modified conjugated diene-based polymer including the same, and more particularly, provides a modification monomer represented by Formula 1 and a modified conjugated diene-based polymer including a repeating unit derived therefrom.

Abstract: A thermoplastic composition includes: from about 5 wt % to about 70 wt % poly(methyl methacrylate) (PMMA); from about 15 wt % to about 50 wt % of a first poly(carbonate-siloxane) copolymer having a siloxane content of from about 35 wt % to about 45 wt %; and from about 10 wt % to about 45 wt % of a second poly(carbonate-siloxane) copolymer. The second poly(carbonate-siloxane) copolymer has a siloxane content of from about 15 wt % to about 25 wt % or from about 4 wt % to about 8 wt %.

Abstract: A thermally conductive silicone composition having an organopolysiloxane as a base polymer and containing a thermally conductive filler, wherein the thermally conductive silicone composition that includes aluminum nitride having an average particle size of 10-100 ?m and crushed alumina having an average particle size of 0.1-5 ?m as a thermally conductive filler, contains 15-55 mass % of crushed alumina in the total amount of aluminum nitride and crushed alumina, and contains a total of 60-95 mass % of aluminum nitride and crushed alumina in the thermally conductive silicone composition has excellent moldability, high thermal conductivity and low thermal resistance, can give a cured product also having excellent water resistance, and has good adhesiveness during mounting when used as a heat-dissipating member.

Abstract: A hydrophobic and oleophobic coating composition includes at least a polysilazane polymer and a fluoroacrylate copolymer. The coating composition can be applied to a substrate in a single-step process as a thick and durable polymeric layer. Methods for making the coating composition and related articles are also provided.

Abstract: A process of producing a silicone polymer includes hydrolyzing/condensating one or more compound in the presence of a base, thereby producing a silicone polymer that has an organic acid content of 0.0001 to 0.03 parts by weight with respect to 100 parts by weight of the silicone polymer. The process for producing a silicone polymer makes it possible to inhibit an increase in the molecular weight of a silicone polymer during high-temperature concentration in the steps of producing a silicone polymer.

Abstract: A method of producing an ultra-high Dk material includes contacting and reacting a fluoroalkyl methacrylate; an alkyl glycol dimethacrylate; a hydrophilic agent, such as methacrylic acid; a hydroxyalkyl tris(trimethylsiloxy)silane; a hydroxyalkyl terminated polydimethylsiloxane; and styrylethyltris(trimethylsiloxy)silane. The reaction is conducted within an inert atmosphere at a pressure of at least 25 pounds per square inch (PSI) and for a period of time and at a temperature sufficient to produce the ultra-high Dk material.

Abstract: A method of preparing an organosiloxane comprises cohydrolyzing a mixture comprising a first silane compound having the general formula R2SiX2 and a second silane compound having the general formula R3SiR1 in the presence of an aqueous acid, wherein each R is independently selected from H and a hydrocarbyl group, each X is an independently selected halogen atom, and R1 is X or OSiR3. The organosiloxane is prepared in a reaction product. Optionally, the method comprises isolating the organosiloxane from the reaction product. The organosiloxane has the general formula R3SiO(R2SiO)nH, wherein n is an integer from 1 to 200.

Abstract: Provided is a scratch self-repairing film including a hardcoat layer that has surface hardness, flexibility, and heat resistance at high levels and offers excellent workability. The scratch self-repairing film according to the present invention includes a substrate layer, a hardcoat layer on or over one side of the substrate layer, and a flexible resin layer on or over the other side of the substrate layer. The hardcoat layer includes a cured product of a curable composition. The curable composition includes a cationically curable silicone resin and a leveling agent. The cationically curable silicone resin includes a silsesquioxane unit. The cationically curable silicone resin includes an epoxy-containing monomeric unit in a proportion of 50 mole percent or more of the totality of all monomeric units and has a number-average molecular weight of 1000 to 3000.

Abstract: A curable organopolysiloxane composition comprises: (A) an epoxy group-containing organopolysiloxane represented by the average composition formula: XaR1bSiO(4?a?b)/2 wherein X represents at least one type of epoxy group selected from a glycidoxyalky group, an epoxycycloalkyl alkyl group, and an epoxyalkyl group; R1 represents a hydrogen atom, an alkyl group, an alkenyl group, an aryl group, an aralkyl group, a hydroxyl group, or an alkoxy group; provided at least two X groups are present in a molecule; and “a” and “b” are numbers satisfying: 0<a<1, 0<b<3, and 0.8<(a+b)<3; (B) a compound having at least two mercapto groups in a molecule; and (C) an amine compound not having a N—H bond and/or a phosphine compound not having a P—H bond. The composition has favorable curability even at a relatively low temperature, and forms a cured film having excellent bonding with regard to an object to be coated.

Abstract: The present disclosure relates to the field of preparing an inorganic nanometer material and application thereof, and specifically relates to a film-forming silica sol, a method of preparing the silica sol, and usage thereof. The present disclosure provides a film-forming silica sol comprising, by weight percentage, constituents of: silica sol: 66-91%; modifying agent: 0.1-1.8%; film-forming auxiliary: 7.2-33.9%. The present disclosure further provides a method of preparing a film-forming silica sol and an application thereof. With the film-forming silica sol, a method of preparing the silica sol, and usage thereof according to the present disclosure, the prepared film-forming silica sol has a good appearance transparency and stability, and when applied to paint as a film-forming coating, it has a good glossiness, a high hardness, and a strong adhesive force; therefore, it has a high practical value in the paint field.

Abstract: The present invention provides a silicone composition comprising components (A) to (F); (A) 100 parts by mass of a raw rubber-like, at 25 degrees C., organopolysiloxane having at least two alkenyl groups each bonded to a silicon atom; (B) 5 to 100 parts by mass of silica powder having a specific surface area of 50 m2/g or more; (C) platinum or a platinum compound in an amount of 1 to 1,000 ppm by mass as a platinum atom, relative to the mass of component (A); (D) 0.01 to 5 parts by mass of a compound selected from an organic silicon compound having a nitrogen-containing organic group and an unsaturated hydrocarbon group, and benzotriazole and a derivative thereof; (E) an addition reaction curing agent other than said component (C), or an organic peroxide in an effective amount to cure the composition, and (F) 0.

Abstract: Ceramic black materials for use as, or in, colorants, inks, pigments, dyes, additives and formulations utilizing these black materials. Black ceramics having silicon, oxygen and carbon, and methods of making these ceramics; formulations utilizing these black ceramics; and devices, structures and apparatus that have or utilize these formulations. Plastics, paints, inks, coatings, formulations, liquids and adhesives containing ceramic black materials, preferably polymer derived black ceramic materials, and in particular polysilocarb polymer derived ceramic materials.

Abstract: The present disclosure relates, in exemplary embodiments, to compositions of matter comprising synthetic blends of at least two feedstocks that produce a distribution of fluorinated polyhedral oligomeric silsesquioxane molecule structures. The present disclosure also relates, in exemplary embodiments, to methods of making such synthetic blends.

Abstract: Provided are a novel polyorganosiloxane capable of preparing copolycarbonate with improved weather resistance and flowability while maintaining the intrinsic physical properties of polycarbonate resin, and a copolycarbonate prepared by using the same.

Abstract: Water-soluble, conjugated polymers containing one or more dibenzosilole monomer residues, as well as compositions, kits, and methods of making and using such polymers are disclosed. Also disclosed are dibenzosilole derivatives substituted with one or more water-solubilizing groups, and methods of making and using such derivatives to prepare water-soluble dibenzosilole polymers.