8 results about "Aqueous medium" patented technology

This invention relates to a composition comprising microcapsules suspended in an aqueous media, said microcapsules comprising a water immiscible material contained within an encapsulating wall of polymeric material, wherein the aqueous media contains a stabilizer comprising an anionic polymer mixture comprising a first sulfonated polystyrene polymer and a second sulfonated polystyrene polymer wherein the ratio of the weight average polymer molecular weight of the first polymer to the second polymer is greater than 2. It further relates to an imaging element comprising said microcapsules.

An object of the invention is to provide a material comprising ultrafine cellulose fibers, having good dispersibility of fine particles in an aqueous medium containing ultrafine cellulose fibers. According to the invention, there is provided a material comprising ultrafine cellulose fibers, wherein the content of the ultrafine cellulose fibers is 80% by mass or more, and the haze value of a sample, which has been prepared by adding the material comprising ultrafine cellulose fibers to pure water to a solid concentration of 0.4% by mass, and stirring the mixture with a disperser under conditions of 1500 rpm and 5 minutes, is 20% or less.

The invention provides an artificial fracture imaging method and system for a physical simulation gas fracturing experiment and belongs to the field of petroleum and natural gas exploration and development. The artificial fracture imaging method for the physical simulation gas fracturing experiment comprises the steps that 1, a rope saw is used to cut off a rock sample, obtained after the gas fracturing experiment, along a section of the rock sample; 2, a writing thin layer with ductility is tightly combined with the section of the rock sample; and 3, the surface, where a coloring block is attached, is used to uniformly color the writing thin layer. Through the artificial fracture imaging method and system, the problems that the rock sample obtained after the gas fracturing experiment cannot be directly transplanted, and dyeing of a rock sample fracture is performed by adding a coloring material in the prior art are solved, and a new artificial fracture imaging method is proposed; and through the method, no aqueous medium is added, a rock block and a fracture surface maintain a waterless dry state all the time, and experiment result disturbance caused by an aqueous medium is avoided.