A method and a system for preventing water production in subterranean formations are provided. An exemplary system disclosed a water shutoff material for a wellbore. The water shutoff material includes a gel formed from an acidic suspension of nanosilica particles and an activator.

Provided is a vinyl chloride resin composition that enables production of a vinyl chloride resin molded product having a desired dark color tone and excellent heat shielding. The vinyl chloride resin composition contains a vinyl chloride resin (a), a plasticizer (b), and a heat-shielding pigment (c). The heat-shielding pigment (c) has an L* value of not lower than 18.0 and not higher than 70.0 in the L*a*b* color system and exhibits a spectral reflectance curve on which a wavelength where reflectance is 20% or more is present in a wavelength region of 800 nm to 2400 nm.

A method of producing efficiently and stably core-shell type oxide particles, wherein the entire surface of the core oxide particles is uniformly coated with the shell oxide, includes at least two steps of: Step 1 of precipitating the core oxide particles in a mixed fluid prepared by mixing an oxide raw material liquid for core and an oxide precipitation solvent and Step 2 of coating the entire surface of the core oxide particles uniformly with the shell oxide by mixing the mixed fluid and an oxide raw material liquid for shell. (A) At least Steps 1 and 2 are performed continuously between at least two processing surfaces 1 and 2 which are capable of approaching to and separating from each other, at least one of which rotates relatively to the other; (B) after Step 1, Step 2 is completed within a prescribed time during which the core oxide particles do not aggregate in the mixed fluid; or (C) Step 1 and Step 2 are controlled so that the primary particle diameter of the core-shell type oxide particles is 190% or less relative to the primary particle diameter of the core oxide particles.

A liquid adhesive coating composition that cures into a solid form, used to non-permanently adhere interior floor or wall coverings to substrate floor or wall surfaces respectively, includes a polymer incorporating iron or other paramagnetic, superparamagnetic, ferromagnetic, or ferrimagnetic ingredients, that becomes permanently adhered to the substrate as it cures, and thereafter provides a low-tack adhesive surface that is also magnetically attractive, upon which magnetized floor or wall coverings including certain types of carpet, linoleum, vinyl, wallpaper, and other types of magnetically-backed coverings can be subsequently installed. The combined low-tack adhesive and magnetic adhesion qualities of the cured composition of the invention allow for the magnetically-backed floor or wall coverings to be sufficiently well adhered to the surface of the cured adhesive composition to remain in place during normal usage while retaining the ability for the coverings to be subsequently removed, repositioned or replaced without damaging the respective coverings, adhesive coating composition layer, or substrate.

Systems and methods for actively treating mining wastewater, such as acid mine drainage, using a mixed culture of iron oxidizing bacteria, in a manner that results in both remediation of the water and the production of a useful end product. Exemplary systems and methods employ a reaction vessel where the bacteria can oxidize the iron in the mining wastewater for some amount of time, and a settling tank into which reacted water may be transferred and retained to permit iron oxyhydroxide contained in the water to settle as iron oxyhydroxide sludge. The iron oxyhydroxide sludge may be dried to produce iron oxyhydroxide solids that can be employed in the manufacture of a usable pigment.

Coating compositions for coating an oilfield operational component, and related methods, may include in some aspects a coating composition having a trifunctional silane, a silanol, and a filler. The coating composition may be applied to a surface of the oilfield operational component that is configured to be exposed to a fluid. The coating composition may be applied to at least partially cover or coat the surface. The coating composition may be configured to chemically bond with a cured primer composition that includes an epoxy.

Disclosed is a dipping composite material for enhancing the cut resistance of chemical-resistant gloves, wherein an additive is added to a latex, and the additive is a metal oxide and/or silica and/or glass fiber and/or basalt fiber and/or aramid fiber. The present invention improves the formula of a dipping layer such that the dipping layer has the cut resistance, which can significantly improve the cut resistant level of gloves.

The present invention relates to an electromagnetic millimetre wave transmission reducing material, preferably having a volume resistivity of more than 1 Ωcm, containing particles of at least an electrically conductive, magnetic or dielectric material and an electrically non-conductive polymer, wherein the transmission reducing material is capable of reducing transmission of electromagnetic waves in a frequency region of 60 GHz or more. The invention also relates to its use and method for reducing transmission as well as an electronic device comprising said transmission reducing material.

A polymeric film includes a substrate at least partially coated with hydrophobic particles, the hydrophobic particles include: a metal oxide core; and a hydrocarbon chain having from 2 to 40 carbon atoms, wherein the hydrocarbon chain is chemically bound to the metal oxide core

Provided are a manufacturing method of a dispersion including a step A of preparing a mixture containing an edible pigment, an edible dispersant, and water, a step B of applying a hydrostatic pressure equal to or higher than 30 MPa to the mixture, and a step C of performing a dispersion treatment on the mixture to which the hydrostatic pressure is applied; a pigment dispersion for ink jet recording and a manufacturing method thereof; and an ink composition for an ink jet and a manufacturing method thereof.