Abstract: The invention relates to a urea preparation containing (A) 5 to 75 wt. % of one or more urea components which have a molecular weight of at least 350 g/mol and contain at least one urea group; (B) 15 to 95 wt. %, preferably 30 to 80 wt.

Abstract: A reactive functional group-containing polyarylene sulfide resin composition having a narrow polydispersity and a low gas generation amount is manufactured by mixing a polyarylene sulfide resin (a) and a polyarylene sulfide resin (b), wherein the polyarylene sulfide (a) has a weight reduction ratio ?Wr of not higher than 0.18% under heating and an increase rate of melt viscosity of less than 1.05 times by addition of a reactive compound (c) having a reactive group relative to melt viscosity prior to addition of the reactive compound (c), and the polyarylene sulfide (b) has the weight reduction ratio ?Wr of not higher than 0.18% under heating and the increase rate of melt viscosity of not less than 1.05 times by addition of the reactive compound (c) having the reactive group relative to melt viscosity prior to addition of the reactive compound (c).

Abstract: An organopolysiloxane containing at least two silicon-bonded hydroxyl groups, the reaction product of an amino-containing organoalkoxysilane with a dicarboxylic anhydride, and an organopolysiloxane containing long-chain alkyl and alkoxy groups, but free of hydroxyl groups are emulsified and dispersed in water in the presence of a surfactant to form a coating emulsion composition.

Abstract: The present invention relates to a curable composition, providing, upon curing, an abrasion-resistant, transparent, antistatic coating, comprising carbon nanotubes and a binder comprising at least one epoxysilane compound, preferably an epoxyalkoxysilane, and optionally fillers such as nanoparticles of non electrically conductive oxides and/or additional binder components such as tetraethoxysilane. The invention further relates to optical articles comprising a substrate, and, starting from the substrate, an abrasion- and/or scratch-resistant coating, and an antistatic coating formed by depositing directly onto said abrasion- and/or scratch-resistant coating the above referred curable composition. The obtained optical articles exhibit antistatic properties, high optical transparency with about 91-92% of transmittance, low haze and improved abrasion resistance.

Abstract: According to the invention there is provided a composite article including: a textile layer having a first and a second face, each of the first and second faces having a polymeric coating thereon; a first polymeric layer adhered to the polymeric coating on the first face of the textile layer; and a second polymeric layer adhered to the polymeric coating on the second face of the textile layer; in which the polymeric coatings on the first and second faces of the textile layer are each formed by polymerizing a polymeric precursor which includes a group of sub-formula (I) where R2 and R3 are independently selected from (CR7R8)n, or a group CR9R10, CR7R8CR9R10 or CR9R10CR7R8 where n is 0, 1 or 2, R7 and R8 are independently selected from hydrogen, halo or hydrocarbyl, and either One of R9 or R10 is hydrogen and the other is an electron withdrawing group, or R9 and R10 together form an electron withdrawing group, and R4 and R5 are independently selected from CH or CR11 where R11 is an electron withdrawing group, t

Abstract: A method of synthesizing a polynucleotide composition includes attaching a compound including at least one initiator or at least one transfer agent for a reversible deactivation radical polymerization to an end of a nucleotide chain assembly immobilized upon a solid phase support during a solid phase synthesis of a polynucleotide so that the initiator or the transfer agent is attacked to the end of a nucleotide chain assembly in a manner which is stable under conditions of deprotection of the polynucleotide, and growing a polymer from the initiator of from a site of the chain transfer agent via the reversible deactivation radical polymerization to form the polynucleotide composition.

Abstract: A polysulfide material having reactive vinyl end groups and a method of making a vinyl end-capped polysulfide material are described. The vinyl end-capped polysulfide material has potential applications as a sealant, an adhesive, a coating, a caulking, or the like. In a specific example, the polysulfide material may be used as a precursor material for a sealant resin in the manufacturing of an integral fuel tank of an aircraft. An example method for making polysulfide materials includes contacting a vinyl-functionalized aryl halide and/or a vinyl-functionalized heteroaryl halide with dithiols and/or trithiols in the presence of an organic solvent.

Abstract: Described herein are hemi-aminal ethers and thioethers of N-alkenyl cyclic compounds that may be produced through a reaction comprising: (A) at least one first reactant represented by a structure (I), wherein X is a functionalized or unfunctionalized C1-C5 alkylene group optionally having one or more heteroatoms, and each R1, R2, and R3 is independently selected from the group consisting of hydrogen and functionalized and unfunctionalized alkyl groups optionally having one or more heteroatoms, and (B) at least one second reactant having at least one hydroxyl moiety or thiol moiety. The hemi-aminal ethers and thioethers of N-alkenyl cyclic compounds may comprise a polymerizable moiety, in which case they may be left as-is or used to create homopolymers or non-homopolymers, or they may not comprise a polymerizable moiety. A wide variety of formulations may be created using the hemi-aminal ethers and thioethers of N-alkenyl cyclic compounds, including personal care, oilfield, and construction formulations.

Abstract: Disclosed herein are glycidol-based polymers, nanoparticles, and methods related thereto useful for a variety of applications, including, but not limited to, drug delivery. This abstract is intended as a scanning tool for purposes of searching in the particular art and is not intended to be limiting of the present invention.

Abstract: A thermoplastic resin composition having good balance among impact resistance, flame retardancy, heat resistance and flowability all of which are required for thin molded articles high-dimensionally. The flame retardant resin composition comprises 100 parts by weight of a resin component comprising (A) a polycarbonate resin and (B) a polycarbonate-polydiorganosiloxane copolymer resin obtained by copolymerizing a dihydric phenol with a hydroxyaryl-terminated polydiorganosiloxane, (C) 3 to 35 parts by weight of an organic phosphorus-based flame retardant or 0.005 to 5 parts by weight of an organic metal salt-based flame retardant, (D) 0.1 to 30 parts by weight of a silicate mineral and (E) 0.1 to 3 parts by weight of a dripping inhibitor, and, if necessary, (F) 3 to 45 parts by weight of a styrene resin wherein the polydiorganosiloxane content of the component (B) in the composition is 0.2 to 0.6 wt %.

Abstract: A aircraft component comprises a polycarbonate composition comprising: a first polycarbonate selected from a polycarbonate homopolymer, a poly(aliphatic ester-carbonate), or a combination thereof; a second polymer different from the first polycarbonate, the second polymer comprising a poly(carbonate-siloxane) copolymer, a polydialkylsiloxane, a silicone graft copolymer, or a combination thereof, wherein siloxane units in the second polymer are present in the polycarbonate composition in an amount of 0.3 to 3 wt. %, based on the total weight of the polycarbonate composition; and 10 to 50 wt. % of glass fiber, based on the total weight of the polycarbonate composition.

Abstract: A molding composition formulation is provided of a thermoset cross-linkable polyol having unsaturated backbone comprising the structure defined by formula 1: (1) a reinforcing filler; and optionally, a flame retardant, a UV stabilizer or a composition comprising one of the foregoing.

Abstract: A method of forming microcapsules having improved physical properties and release control as well as the microcapsules formed by the process wherein the capsule wall is formed by the concurrent polymerization of monomers, oligomer and/or prepolymers on the inside of the capsule wall and different monomers, oligomers and/or prepolymers on the exterior of the capsule wall as it forms.

Abstract: A method of forming dual melamine/acrylic walled microcapsules having improved physical properties and release control as well as the microcapsules formed by the process wherein the capsule wall is formed by the use of select (meth)acrylate monomers and/or oligomers and/or select self-condensing melamine resins.

Abstract: The present disclosure is directed to process for forming a coating layer curable at ambient temperature. This disclosure is further directed to a process for forming a coating layer using a coating composition comprising a crosslinkable component and a crosslinking component that comprises: (a) one or more alkylated melamines that are essentially unreactive to a polyisocyanate, and (b) a polyisocyanate. The process and the coating composition can be particularly suitable for vehicle coatings.

Abstract: Multi-phase polymer films of quantum dots (QDs) are disclosed. The QDs are absorbed in a host matrix, which dispersed within an outer polymer phase. The host matrix is hydrophobic and is compatible with the surface of the QDs. The host matrix may also include a scaffolding material that prevents the QDs from agglomerating. The outer polymer is typically more hydrophilic and prevents oxygen from contacting the QDs.

Abstract: A method of preparing an aqueous emulsion of a sizing agent for use in a papermaking process comprising, emulsifying the sizing agent into an aqueous liquid, in which an aqueous dispersion of a water-soluble polymer of N-vinylformamide and/or N-vinylacetamide units is added to either the sizing agent or the aqueous liquid before, during or after emulsification, wherein the dispersion contains, based on 100 parts by weight of water, (A) from 0.1 to 80 parts by weight of a water-soluble polymer containing N-vinylformamide units and/or N-vinylacetamide units, and (B) from 0.02 to 50 parts by weight of at least one polymeric dispersant.

Abstract: A resin composition is provided. The resin composition includes a thermosetting resin component and a filler, wherein the thermosetting resin component has a dissipation factor (Df) of not higher than 0.006 at 1 GHz, and the filler is selected from the following group: strontium titanate, calcium titanate, barium titanate, magnesium titanate, combinations thereof and the sintered material of any of the combinations. The filler is doped or not doped with one or more elements selected from silicon, cobalt, nickel, manganese, and rare earth elements. The average particle size (D50) of the filler ranges from about 2 ?m to about 10 ?m. The amount of the filler is about 10 parts by weight to about 600 parts by weight per 100 parts by weight of the thermosetting resin component.

Abstract: Various methods and systems of making inorganic fiber/flake reinforced composites having a thermoplastic matrix are disclosed. The methods use systems similar to those used to make inorganic fiber/flake reinforced products having a thermoset matrix, but the systems and methods are modified to use thermoplastic precursor monomer(s) followed by in situ polymerization of the monomer(s) during and/or following forming of the desired shape of the products. These methods permit the manufacture of superior inorganic fiber reinforced thermoplastic matrix composites in large and very large shapes heretofore not possible, or practical.

Abstract: The present invention is directed to curable film-forming compositions comprising acrylic polymers, and to coated substrates comprising the curable film-forming composition applied to at least one surface of the substrates. The acrylic polymers comprise epoxy functional groups and polydialkylsiloxane functional groups. The present invention is also drawn to methods of mitigating dirt build-up on a substrate, comprising applying to at least a portion of the substrate the curable film-forming composition described above and at least partially curing the curable film-forming composition.