Abstract: This invention provides nonaqueous electrolyte solutions for lithium batteries. The nonaqueous electrolyte solutions comprise a liquid electrolyte medium; a lithium-containing salt; and at least one oxygen-containing brominated flame retardant.

Abstract: A self-suspending proppant that resists the adverse effects of calcium and other cations on swelling comprises a proppant substrate particle and a gelatinized non-extruder-derived neutral starch coating on the proppant substrate particle.

Abstract: A self-suspending proppant that resists the adverse effects of calcium and other cations on swelling comprises a proppant substrate particle and a gelatinized neutral starch coating on the proppant substrate particle.

Abstract: A self-suspending proppant that resists the adverse effects of calcium and other cations on swelling comprises a proppant substrate particle and a gelatinized non-extruder-derived neutral starch coating on the proppant substrate particle.

Abstract: A perforation ball sealer for temporarily plugging a perforation in an oil or gas well comprises a polymer foam core and a shell surrounding the core formed from a solid or essentially solid second polymer. Both the core and the shell are made from slowly water-soluble polymers.

Abstract: A perforation ball sealer for temporarily plugging a perforation in an oil or gas well comprises a polymer foam core and a shell surrounding the core formed from a solid or essentially solid second polymer. Both the core and the shell are made from slowly water-soluble polymers.

Abstract: The durability of a self-suspending proppant which is made by applying a layer of a hydrogel-forming polymer in powder form to a binder carried on the surfaces of a proppant particle substrate is improved by applying a crosslinking agent for polymer to these powder particles after they have been bound to the binder.

Abstract: A self-suspending proppant comprises a proppant substrate particle and a water-swellable composite coating on the proppant substrate particle comprising the combination of at least two of an anionic hydrogel polymer, a cationic hydrogel polymer and a nonionic hydrogel polymer.

Abstract: Both the inside surface and the outside surface of the hydrogel polymer coating of a self-suspending proppant are surface crosslinked.

Abstract: Perforation ball sealers with improved solubility characteristics are made from a vinyl alcohol/vinyl acetate copolymer (PVOH) having a degree of hydrolysis of ˜50% to 84%, or from a molding grade ethylene/vinyl alcohol copolymer (EVOH) containing 24-48 mol % ethylene and having a degree of hydrolysis of 85 to 99%, or from a blend of both.

Abstract: A self-suspending proppant that resists the adverse effects of calcium and other cations on swelling comprises a proppant substrate particle and a gelatinized cationic starch coating on the proppant substrate particle.

Abstract: A self-suspending proppant comprises a proppant particle substrate and a coating on the proppant particle substrate comprising chitosan or a chitosan analog, wherein the coating has been applied to the proppant particle substrate of the proppant by means of an alkaline solution or emulsion.

Abstract: The present invention provides a nanocapsule of a blocked isocyanate encapsulated within a polymeric nanosphere. In one aspect, the polymeric nanosphere is functionalized. Free isocyanate functionality is released upon thermal annealing or UV exposure of the nanospheres containing the blocked isocyanate. This present invention also provides a novel method for encapsulating isocyanates in aqueous media. In one aspect, the method comprises miniemulsion polymerization. The thermally or UV deblocked isocyanate can be used as an active functional group for many potential applications.

Abstract: A sensor is provided. The sensor includes a substrate having at least one intrinsically conductive polymer coated on at least a first surface thereof and at least a first and second conductive contact.

Abstract: A sensor is provided. The sensor includes a substrate having at least one intrinsically conductive polymer coated on at least a first surface thereof and at least a first and second conductive contact.

Abstract: The present invention provides a nanocapsule of a blocked isocyanate encapsulated within a polymeric nanosphere. In one aspect, the polymeric nanosphere is functionalized. Free isocyanate functionality is released upon thermal annealing or UV exposure of the nanospheres containing the blocked isocyanate. This present invention also provides a novel method for encapsulating isocyanates in aqueous media. In one aspect, the method comprises miniemulsion polymerization. The thermally or UV deblocked isocyanate can be used as an active functional group for many potential applications.