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12216results about How to "Good storage stability" patented technology

Cast form water borne coating and technique for preparing the same

The invention relates to an auxiliary material for casting a mould, in particular to a casting mould water-based coating formulation for a sand mould or an expendable pattern casting (EPC), and a process for preparing the same. The casting mould water-based coating formulation consists of refractory powder, a suspending agent, a bonding agent, a surfactant, a defoaming agent, a corrosion remover and water. The process comprises the following steps: adding the suspending agent to the water directly, and mixing and dispersing the mixture in a high speed dispersion machine; adding auxiliary agents including the defoaming agent, the surfactant, the corrosion remover, and the like to the water, and mixing the auxiliary agents; adding the refractory powder to the mixture to be mixed; and adding the bonding agent to the mixture to be mixed, and then adding water to adjust the coating until the coating has the thickness in a using state to obtain the finished product. The coating prepared by the process has the effects that the coating ensures that a high-density low-viscosity coating has excellent suspension property and storage stability, a coating layer is not easy to crack after drying, the coating is advantageous to improve the capacity of the coating to resist high temperature metal corrosion, and the like.
Owner:深圳市景鼎现代科技有限公司

Aquifer amendment containing multiple active microorganisms and method of preparing the same

The invention relates to a water improver with multiple active microbes and a preparation method thereof, which adopts two or a plurality of following microbial strains, comprising a bacillus licheniformis, a bacillus subtilis, a bacillus megaterium, a lactobacillus plantarum, a saccharomyces cerevisiae, a candida lipolytica, bacillus pumilus, bacillus cereus, a rhodopsedomnas palustris, an alcaligenes faecalis and an arthrobacter globiformis. After the femination of the microbial strains, the preparation of the liquid is that the single microzyme zymocyte liquid is mixed and stirred in proportion; or the mixed bacteria solution is concentrated; or the concentrated single microzyme zymocyte liquid is mixed and stirred according to the proportion of the single microzyme zymocyte liquid, and is prepared into a mix bacteria solution. The mix bacteria solution is mixed homogeniously with an added assistant agent. The total amount of the live bacteria within the warrenty period is 106 to 1010 per milliliter. The preparation of the solid inoculant is that the zymocyte liquid is dried after the absoption of the adsorbent on the zymocyte liquid, is prepared into a solid bacterial powder and mixed evenly with the added assistant agent. The total amount of the live bacteria within the warreny period ranges between 106 and 1011 per gram. The invention has multi-function and stable effect and is suitable for treating various water bodies.
Owner:SHANGHAI SIJI BIOLOGICAL TECH

Ultraviolet curable organic silicon-acrylic resin electronic adhesive and application thereof

The invention provides an ultraviolet curable organic silicon-acrylic resin electronic adhesive, which comprises the following components: (1) 100 parts of doublebond-containing acrylic monomers or prepolymer, (2) 5 to 500 parts of doublebond-containing organic silicon resin with a molecular weight of 1,000 to 10,000, (3) 1 to 100 parts of vinyl compound modified inorganic nano particle, (4) 1 to 50 parts of radical ultraviolet initiator, (5) 1 to 100 parts of organosilan, (6) 0 to 200 parts of inorganic reinforcing agent, and (7) 0 to 50 parts of auxiliary agent, wherein the ultraviolet curable organic silicon-acrylic resin is prepared by carrying out ultraviolet curing on the materials, and the solid content thereof is 100 weight percent. The product produced by the invention has the excellent characteristics of firm bonding with metal, glass and plastic materials and electronic devices, good optical property, good elasticity, good weather resistance, safety, non-toxicity, convenient construction and the like, can replace traditional solvent electronic adhesives, and is used for protective coatings, protective adhesives, packaging materials and the like of electronic devices, integrated circuits, printed circuits, LED chips and the like.
Owner:SHANGHAI XIYI NEW MATERIAL SCI & TECHCO
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