Abstract: The present invention relates to a binder composition for making self-hardening foundry molds that is capable of improving the hardening speed of the molds and the strength of the molds, and is excellent in storage stability; and a method for producing a foundry mold, using this composition. The binder composition for making self-hardening foundry molds of the present invention is a binder composition for making self-hardening foundry molds, comprising a furan resin and an ion compound, wherein the ion compound contains at least one anion selected from the group consisting of a hydrogensulfite ion, a sulfite ion, a pyrosulfite ion, a thiosulfate ion, a thionate ion, and a dithionite ion; the content of the anion is from 0.006 to 0.60 parts by weight for 100 parts by weight of the furan resin; and the composition has a pH of 6 or less at 25° C.

Abstract: The present invention relates to composite materials with a high dielectric constant and high dielectric strength and to methods of producing the composite materials. The composite materials have high dielectric constants at a range of high frequencies and possess robust mechanical properties and strengths, such that they may be machined to a variety of configurations. The composite materials also have high dielectric strengths for operation in high power and high energy density systems. In one embodiment, the composite material is composed of a trimodal distribution of ceramic particles, including barium titanate, barium strontium titanate (BST), or combinations thereof and a polymer binder.

Abstract: A one part, storage stable polymerizable formulation is provided that includes an ethenically unsaturated polymerizable compound intermixed with a free radical polymerization initiator and an organic solvent. The organic solvent provides storage stability and upon evaporation of the solvent, the rate of polymerization of the compound accelerates independent of addition of a second part. The formulation includes at least 30 total weight percent solids upon cure. Optional additives to the formulation include at least one of a cure accelerator, a filler, a plasticizer, a colorant, and a cure inhibitor. A process for forming a polymerized coating on an article involves the application of this formulation to the substrate of an article and allowing sufficient time for the solvent to evaporate to form the polymerized coating on the article. The substrate of the article forms a corrosion barrier even without prior removal of a native corrosion layer on a surface of the substrate of the article.

Abstract: A composition for forming an electroactive coating is described, including an acid as a polymerization catalyst, at least one functional component, and at least one compound of formula (1) as a monomer: wherein X is selected from S, O, Se, Te, PR2 and NR2, Y is hydrogen (H) or a precursor of a good leaving group Y? whose conjugate acid (HY) has a pKa of less than 30, Z is hydrogen (H), silyl, or a good leaving group whose conjugate acid (HY) has a pKa of less than 30, b is 0, 1 or 2, each R1 is a substituent, and the at least one compound of formula (1) includes at least one compound of formula (1) with Z=H and Y?H.

Abstract: Provided are: a curable composition from which a cured article having excellent molding processability and high heat resistance as well as such a high Tg that it can be used as a molding resin for a SiC power semiconductor can be obtained; and a cured article thereof. The curable composition comprises: 100 parts by mass of a compound having at least two partial structures represented by the following Formula (1) in the molecule as a component (A); 0.5 to 3 parts by mass of a thermal radical generator as a component (B); and 0 to 50 parts by mass of other radical-reactive compound as a component (C): (wherein, ring A represents a benzene ring or a cyclohexyl ring; R1 represents an alkylene group having 1 to 6 carbon atoms; R2 represents an alkyl group having 1 to 4 carbon atoms; a represents a number of 0 or 1; b represents an integer of 0 to 3; and c represents a number of 1 or 2).

Abstract: The present invention provides organopolysiloxane comprising one or more unsaturated bond-containing group(s) in one molecule and having constitutional units F1, M1, and T in any combination of (i) F1 and M1, (ii) F1 and T, and (iii) F1, M1, and T: wherein R1 represents any selected from the group consisting of a substituted or unsubstituted alkyl group having 1 to 10 carbon atoms, a substituted or unsubstituted cycloalkyl group having 3 to 10 carbon atoms, a substituted or unsubstituted aryl group, and a substituted or unsubstituted aralkyl group; R2 represents an unsaturated bond-containing group having 2 to 10 carbon atoms; X represents a divalent hydrocarbon group having 2 to 10 carbon atoms; Y represents a divalent hydrocarbon group having 2 to 10 carbon atoms; and a, b, and c each independently represent an integer of 1 or larger, wherein F1 represents a unit constituting cyclic organopolysiloxane.

Abstract: A particulate suspending agent may be useful for mitigating particulate settling in wellbore applications with high-temperature and/or at near-neutral and higher pH values. Methods of treating a wellbore may include providing a treatment fluid comprising an aqueous liquid, a plurality of particulates, and a particulate suspending agent, wherein the particulate suspending agent comprises a crosslinked polymer particulate formed by a reaction comprising a first monofunctional monomer and an orthoester crosslinker, the orthoester crosslinker comprising an orthoester linkage and at least two crosslinking moieties; and placing the treatment fluid in a wellbore penetrating a subterranean formation.

Abstract: Methods and systems are provided for a dry silicone gel. The dry silicone gel comprises a base polymer having a vinyl-silicone group, a crosslinker, and a chain extender. The dry silicone gel may be made by reacting (a) a first set of components comprising a base polymer having a vinyl-silicone group and an addition cure catalyst with (b) a second set of components comprising a crosslinker, a chain extender, and additional base polymer. In certain circumstances, the base polymer and additional base polymer are vinyl-terminated polydimethylsiloxane.

Abstract: Provided is a silicon-containing curable composition which includes a prepolymer (A) containing two or more Si—H groups in one molecule, which is obtained by subjecting one or more kinds of a cyclic siloxane compound (?) represented the following formula (1) and one or more kinds of a compound (?) represented by the following formula (2), to a hydrosilylation reaction; a cyclic siloxane compound (B) containing, in one molecule, two or more carbon-carbon double bonds that are reactive with Si—H groups; a polysiloxane compound (C) which is different from the prepolymer (A) and the cyclic siloxane compound (B); and a hydrosilylation catalyst (D). In formula (1), R1 to R3 each represent an alkyl group having 1 to 6 carbon atoms, or a phenyl group; a represents a number from 2 to 10; and b represents a number from 0 to 8. In formula (2), n represents the number 1 or 2.

Abstract: The invention is directed to the use of maleic esters selected from compounds of formulae (I), (II) and (III), as copolymerizable emulsifiers in the emulsion polymerization of olefinically unsaturated monomers, in which A is a C3-C40 alkyl group; X, Y and Z independently are hydrogen or methyl; B and D independently are sulfate, phosphate or hydrogen; n and p independently are numbers in the range from 0 to 40; and m is a number in the range from 2 to 40.

Abstract: The invention provides a composition for a resist underlayer film, the composition for a resist underlayer film to form a resist underlayer film of a multilayer resist film used in lithography, wherein the composition comprises at least (A) a fullerene derivative that is a reaction product of a substance having a fullerene skeleton with a 1,3-diene compound derivative having an electron-withdrawing group and (B) an organic solvent. There can be a composition for a resist underlayer film for a multilayer resist film used in lithography, the composition giving a resist underlayer film having excellent high dry etching resistance, capable of suppressing wiggling during substrate etching with high effectiveness, and capable of avoiding a poisoning problem in upperlayer patterning that uses a chemical amplification resist; a process for forming a resist underlayer film; a patterning process; and a fullerene derivative.

Abstract: Compositions for bonding substrate surfaces, particularly steel, aluminum, and urethane-primed galvanized steel, are disclosed. Desirably, the compositions include a stable emulsion including: (a) at least one curable (meth)acrylate component; (b) at least three different elastomeric polymers that are soluble and/or partially soluble in the (meth)acrylate component; and (c) optionally at least one elastomeric polymer that is not soluble in the (meth)acrylate component. Methods for preparing and methods for using these compositions also are disclosed.

Abstract: A water soluble ROMP catalyst, which has high catalytic efficiency for ring opening metathesis is use in the preparation of polymeric blends for use in monolithic columns. In one embodiments a method for making a polymeric blend is discolosed comprising reaction of a water-soluble ROMP catalyst with a norbornene-substituted cycloolefin polymer or a polynorbornene polymer precursor, and wherein the contacting occurs in an aqueous or polar solvent in the presence of a solid support. In another embodiment a monolithic bed is disclosed comprising the water-soluble ROMP catalyst immobilized on a surface of a solid support. Also disclosed is a monolithic bed comprising: a polymer blend, the polymer blend produced from contacting a water soluble ROMP catalyst with a norbornene-substituted cycloolefin polymer or a polynorbornene polymer precursor; and wherein the contacting occurs in an aqueous or polar solvent in the presence of a solid support.

Abstract: An organopolysiloxane having a main chain composed of the following repeating units (I), 2 to 199 side chain units (II) and 1 to 50 crosslinkage units (III) per 100 SiO units in the main chain, provided that the organopolysiloxane has at least 2, on average, crosslinkage units (III):

Abstract: A process for producing water-absorbing polymer particles, comprising the addition of a solid additive to a polymer gel by means of a conveying screw (1), wherein the solid additive and a gas volume flow are fed to the conveying screw (1) by means of an addition channel (2).

Abstract: Disclosed herein is a liquid coating material curable with actinic radiation, substantially or entirely free from organic solvents, comprising (A) at least two compounds of general formula X—O—Y(—OH)—Z-Gr wherein X is a C6-C14 aromatic radical, C5-C20 heterocyclic aromatic radical or C6-C30 alkyl radical, Y is a trivalent organic radical, Z is a linking functional group, and Gr is an organic radical comprising one group which can be activated with actinic radiation; with the proviso that at least one of the two compounds (A) comprises aromatic or heterocyclic aromatic radical X and at least one comprises alkyl radical X; (B) oligo- and polyurethanes and/or oligo- and polyesters comprising two or three groups which can be activated with actinic radiation; (C) color and/or effect pigments; (D) waxes; (E) matting agents; and (F) polysiloxane additives comprising groups which can be activated with actinic radiation, a process for preparing it, and use thereof.

Abstract: A process of producing a ring-opening metathesis polymer characterized in that a treatment to decrease the amount of oxygen and/or peroxide in at least one kind of polymerization starting material is performed prior to the ring-opening metathesis polymerization reaction of a cyclic olefin performed in the presence of a ruthenium carbene complex (catalyst). Treatments to decrease the amount of oxygen and/or peroxide include applying an adsorbent to a polymerization starting material to remove oxygen and/or peroxide by adsorption, applying an antioxidant to a polymerization starting material to decompose oxygen or peroxide, and the like.

Abstract: A multi-compatible sizing composition that includes an epoxy resin emulsion, a silane coupling agent package, a non-ionic lubricant, and a crystalline polyol is provided. The epoxy resin desirably has an epoxy equivalent weight from 180-195. A preferred emulsifier is a modified polyethylene oxide-polypropylene oxide block copolymer. The silane coupling agent package includes an aminosilane and a vinyl silane coupling agent. The sizing composition may be used equally well with epoxy, unsaturated polyester, and vinylester thermosetting resins. Reinforcement fibers sized with the inventive sizing composition possess low friction on contact points, low fuzz, and reduced drag. Other performance characteristics such as in-plane shear and dynamic fatigue are also improved by the multi-compatible sizing composition. Fibers sized with the multi-compatible sizing composition may be used, for example, to form woven rovings and fabrics, in filament winding applications, and in pultrusion processes.

Abstract: The present invention provides a method for the production of an aqueous dispersion containing an electroconductive polymer component which enables electroconductive thin films which are outstanding in their transparency and electroconductivity to be formed, together with the aqueous dispersion obtained by said method. This method includes a stage in which a 3,4-dialkoxythiophene is polymerized in an aqueous solvent using an oxidizing agent in the presence of a polyanion and, in this stage, said oxidizing agent is added by the dropwise addition of a solution or dispersion containing said oxidizing agent to the reaction solution or, alternatively, in the polymerization stage, the alkali metal ion concentration in the reaction liquid is maintained at no more than 400 ppm.

Abstract: Disclosed is a synthetic resin emulsion powder obtained by spray-drying a composition that comprises an emulsion (A) where the dispersoid is a polymer that having one or more unsaturated monomer units selected from ethylenic unsaturated monomers and dienic monomers, and a polyvinyl alcohol (B) having, in the molecule, from 1 to 12 mol % of ethylene units. The emulsion powder has good redispersibility and good water resistance. Its redispersion well form good films and has good storage stability at low temperatures. The emulsion powder is favorable for additives to hydraulic substances, as it well disperses in hydraulic substances such as cement mortar and gives hardened articles of high mechanical strength. The emulsion powder is also favorable for joint materials for hydraulic substances, as its adhesiveness and durability are both good and gives jointed articles of high mechanical strength.

Abstract: Example embodiments pertain to an organic semiconductor composition, in which low-molecular-weight oligomer compounds are distributed in the spaces of a polymer compound so that the free spaces of the organic semiconductor polymer compound are filled with the low-molecular-weight oligomer compounds upon the formation of an organic semiconductor thin film, thereby increasing ?-? stacking effects, and to an organic semiconductor thin film using the same and an organic electronic device employing the thin film. Using the organic semiconductor composition according to example embodiments, a semiconductor thin film and an organic electronic device having improved electrical properties may be manufactured.

Abstract: A high elongation, low 100% modulus composition comprises a copolymer dispersed in a continuous phase polysiloxane. The copolymer is made from high amounts of at least a monomer which is capable of forming a low Tg polymer and relatively low amounts of at least a monomer which is capable of forming a high Tg polymer. The monomer forming the low Tg polymer can be an alkyl acrylate whereas the monomers forming the high Tg polymer can be a vinyl ester, an acrylonitrile or derivatives thereof, a vinyl substituted aromatic such as styrene, an alkyl methacrylate, and the like. The composition has good adhesion to substrates as well as good viscosity aging, and can be utilized in caulks or sealants.

Abstract: A fast-drying coating composition intended primarily as an automotive clear coat that may be cured at ambient conditions is provided with VOC less than 4.0 (preferably about 3.5) by the use as a major film-forming component an acrylic polyol that is the product of a combination of alkyl (meth)acrylate monomers and hydroxyalkyl (meth)acrylate monomers, at least one of which in a specific embodiment is the reaction product of a hydroxyalkyl (meth)acrylate and .epsilon.-caprolactone. The coating composition further includes a curing agent reactive with hydroxyl groups, particularly a polyisocyanate.

Abstract: Water soluble macromers are modified by addition of free radical polymerizable groups, such as those containing a carbon-carbon double or triple bond, which can be polymerized under mild conditions to encapsulate tissues, cells, or biologically active materials. The polymeric materials are particularly useful as tissue adhesives, coatings for tissue lumens including blood vessels, coatings for cells such as islets of Langerhans, coatings, plugs, supports or substrates for contact with biological materials such as the body, and as drug delivery devices for biologically active molecules.

Abstract: Ultravioletsetting resin composition contains fragmentary quartz glass powder in the ratio of 50 to 200 parts to 100 parts of the ultravioletsetting resin. The surface hardness of the ultravioletsetting resin of the present invention is increased in a short time by the application of ultraviolet rays.

Abstract: An improved coating for heat resistant substrates is an aqueous dispersion of polymers prepared by polymerization of olefinically unsaturated monomers in an aqueous medium in the presence of radical formers and emulsifiers, wherein the emulsifiers are polyisocyanate addition products having a molecular weight below 20,000 and containing from 5 to 1000 milliequivalents of anionic structures corresponding to the following formula--NH--CO--N.sup..crclbar. --C.tbd.Nincorporated therein per 100 g of solids content.

Abstract: This invention is a process for preparing a polymer polyol comprising the steps of(a) forming in a first step a dispersant by homopolymerizing a vinyl-terminated adduct, or copolymerizing said adduct with an ethylenically unsaturated monomer or mixture thereof which is not a vinyl-terminated adduct, in the presence of an active hydrogen-containing compound as a solvent under conditions such that the resulting dispersant is soluble in a base polyol, and has a Brookfield viscosity of less than about 25,000 centipoises as a 20-35 wt. -% solution in an active hydrogen-containing compound, and(b) polymerizing an ethylenically unsaturated monomer or mixture thereof in the presence of said dispersant and a base polyol under conditions such that the polymerized monomer forms a plurality and particles which are stabilized against agglomeration by the dispersant.

Abstract: A castable mix formulation for casting ceramic articles which comprises ceramic particles and an organic resin binder composed of furfuryl alcohol and a catalyst consisting essentially of zinc chloride and para toluene sulfonic acid.

Abstract: When a solution of liquid allylic-functional material and bromoxylenol blue is polymerized using a thermally decomposable polymerization initiator, the color imparted by the bromoxylenol blue is brilliant yellow.

Abstract: A polymerizable composition is formed from (a) a polymerizable olefinically unsaturated substance, (b) a phosphorus oxyacid and an organic amine, at least one of which bears a polymerizable olefinically unsaturated group and optionally (c) a particulate inorganic material. Such compositions are useful in dental applications.

Abstract: When a solution of liquid allylic-functional material and dye comprising molybdenum dioxydichloride and molybdenum hexacarbonyl in combination is polymerized using a thermally decomposable polymerization initiator, the color imparted by the combination of the two molybdenum compounds remains essentially stable during the polymerization.

Abstract: A surface hard coating composition for a synthetic resin lens including:(A) at least one organic silicon compound represented by the general formula ##STR1## wherein R.sup.1 is a hydrocarbon group having from one to six carbon atoms or an organic group including vinyl, methacryloyloxy or an epoxy radical, R.sup.2 is a hydrocarbon group having from one to four carbon atoms, R.sup.3 is a hydrocarbon or alkoxy alkyl group having from one to five carbon atoms or a hydrogen atom and l is 0 or one;(B) colloidal silica;(C) at least one poly functional epoxy compound; and(D) magnesium perchlorate.

Abstract: A stable copolymer dispersion is prepared by addition copolymerization of (1) a monomeric adduct of an active hydrogen compound, e.g., a polyether polyol, and an acrylyl compound such as methacryloyl chloride with (2) ethylenically unsaturated monomer(s), e.g., styrene or a mixture thereof with acrylonitrile, while (1) and (2) are dispersed or dissolved in an excess of an active hydrogen polyfunctional compound such as a polyether polyol. The molar ratio of acrylyl moiety to active hydrogen compound is less than 0.1:1. The resulting dispersion has a controlled particle size and a viscosity such that it is suitably employed in the production of polyurethane foams.

Abstract: Coating compositions are provided which consist of a polymerizable ethylenically unsaturated material having included therein as a photoinitiator a di- or tetraester of 3,4,3',4'-benzophenone tetracarboxylic acid or a diester of 4,4'-benzophenone dicarboxylic acid.