800results about How to "Improved rheological properties" patented technology

A dentifrice composition having a low water phase comprising effective amounts of polyphosphate and ionic active ingredients.

The invention provides a barium titanate/polyvinylidene fluoride composite dielectric film and a preparation method thereof. The film comprises barium titanate and polyvinylidene fluoride with the weight ratio of 1.5-5.0:1, and the thickness of the film is less than 50 mu m. In the frequency range of 100 Hz-1 MHz, the relative dielectric constant of the film can reach more than 70, and the dielectric loss is lower than 5*10<-2>. By compounding BaTiO3 ceramic and PVDF polymer, the dielectric film material with high dielectric constant and low dielectric loss is prepared. According to the invention, the barium titanate/polyvinylidene fluoride composite dielectric film with uniform distribution of ceramic particles, controllable thickness, high dielectric constant and low dielectric loss is prepared by preparing barium titanate ceramic powder through solid phase reaction or chemical coprecipitation and then using high temperature drying gel method or solvent induced phase separation gel method. The dielectric film is especially suitable for capacitor, ferroelectric memory, and other electronic devices.

The invention relates to a temperature sensitive gel formulation for in situ vagina uses which is prepared from effective dosage of medicament for treating female vagina infection and macromolecular findings through dissolving into cushioning solution or pure water, and charging poloxamer.

The invention relates to the technical field of sodium hyaluronate gel, and especially relates to a hyaluronic acid elastomer. The hyaluronic acid elastomer is prepared by the following steps: reacting hyaluronic acid with a crosslinking agent to obtain crosslinked sodium hyaluronate gel (A); granulating the obtained crosslinked sodium hyaluronate gel (A) to obtain gel (B) and gel (C) with different particle sizes; mixing the gel (B) and gel (C) to carry out crosslinking reactions again, adjusting the pH value to a neutral area, and carrying out dialysis to obtain the hyaluronic acid elastomer. The provided hyaluronic acid elastomer has an excellent rheology performance, can be used as a cosmetic raw material, can be used to eliminate skin wrinkles physically, maintain the skin water, slowly release the effective component, and improve the feeling. The invention further discloses applications of the hyaluronic acid elastomer.

The invention relates to steel plate warm formed parts with high efficiency, low energy consumption and high quality and a production method thereof, belonging to the technical field of part forming. The steel plate for producing parts comprises the following components in percent by weight: 0.02-0.45% of C, 3.50-9.0% of Mn, less than or equal to 0.020% of P, less than or equal to 0.020% of S, and the balance of Fe and unavoidable impurities. On the basis of these components, one or more of the following components (in percent by weight) are additionally added: 0.1-3.0% of Ni, 0.2-3.0% of Cr, 0.1-0.8% of Mo, 0.3-2.3% of Si, 0.5-2.0% of Cu, 0.0005-0.0050 of B, 0.02-0.30% of Nb, 0.002-0.250% of [N], 0.05-0.25% of Ti, 0.02-0.25% of V, 0.015-3.0% of Al, 0.002-0.005% of RE, and 0.005-0.03% of Ca. The production method comprises the following steps: steel plate heating, steel plate transferring, steel plate precooling, part forming, part cooling, and part temperature control treatment. The production method provided by the invention has the advantages of low cost and high efficiency, and improves the forming rate and final mechanical properties of workpieces.

The present invention is a cable comprising one or more telecommunication or power transmission media or a core of two or more such media, each medium or core surrounded by at least one jacketing or sheathing layer comprising a polypropylene homopolymer or copolymer and having a relaxation spectrum (RSI) and melt flow (MF) such RSI*MF{circumflex over ( )}a is greater than about 12 when a is about 0.5. Significantly, the jacketing or sheathing layer exhibits advantaged extrusion fabrication charateristics, resulting from the propylene polymer having enhanced rheology properties (as demonstrated by its high relaxation spectrum index (RSI)). Additionally, the propylene-based polymer composition of the present invention exhibits relaxtively high melt strength compared to compounds of conventional propylene polymers or ethylene polymers. In fiber optic cable jacketing applications, the present invention advantageously balances low post extrusion shrinkage with high modulus/deformation resistance.

The invention discloses modified direct-scraping thin-layer plastering mortar and a construction method. The plastering mortar is prepared from the following components in parts by weight: 150-200 parts of cement, 700-820 parts of sand, 60-90 parts of mineral micro powder, 0.5-1.2 parts of dispersible latex powder, 0.5-1 part of a thickening agent, 0.2-0.6 part of alkaliproof fibers, 0.1-0.5 part of thixotropic lubricant powder, 0.5-2 parts of multifunctional powder and 150-170 parts of water. The mortar materials disclosed by the invention are small in construction dosage, simple in technology, excellent in bonding force, excellent in crack resistance, and not liable to hollow and crack, the efficiency is greatly improved, and the cost is reduced.

The invention relates to high-temperature-resistant high-density formate polysulfonate drilling fluid and a preparation method thereof. The high-temperature-resistant high-density formate polysulfonate drilling fluid comprises, by weight, 100 parts of water, 2-5 parts of bentonite, 0.1-10 parts of high-temperature-resistant sulphate polymer, 20-100 parts of formate, 0.6-2.0 parts of potassium hydroxide, 8-20 parts of sulfonating agent, 2-6 parts of blocking agent, 0.5-3.0 parts of emulsifier, 0.2-3.0 parts of pH regulator, and 120-270 parts of barite powder. The invention further provides the preparation method of the high-temperature-resistant high-density formate polysulfonate drilling fluid. The high-temperature-resistant high-density formate polysulfonate drilling fluid is applicable to petroleum drilling of deep wells and extra-deep wells, especially wells in high-thickness salt bed, is capable of resisting the temperature up to 180 DEG C under the density of 1.8-2.5g/cm<3>, tolerating salt to saturation and resisting calcium at 800-1000ppm, and is drilling fluid which is fine in performance and resistant to high temperature, high pressure and hypersalinity.

The invention belongs to a production technology of four lactobacillus producing bile salt hydrolase and extracellular polysaccharide as well as functional yoghurt production technology. The technology is adaptable to the production of functional yoghurt and microbial ecological agents in fermented dairy products for lowering cholesterol. The technology adopts high throughput screening technique and an ortho-phthalaldehyde method to obtain bacterial strains which can efficiently reduce the cholesterol, to get the bacterial strains which can produce the bile salt hydrolase with high yield by an Oxford cup method and to gain the bacterial strains which can produce the extracellular polysaccharide with high yield by a phenol-sulfuric acid method. All the four kinds of screened lactobacillus have excellent fermentation performance. The yogurt with fine quality is prepared by lactobacillus casei KL1 (CGMCC No1809) and J1 (CGMCC No1808), which have the bile salt hydrolase with high efficiency in lowering the cholesterol as well as high yield and the extracellular polysaccharide, lactococcus lactis subsp.lactis KS4 (CGMCC No1807) and streptococcus thermophilus Tx(CGMCC No1810), therefore, the yogurt not only has the function of lowering serum cholesterol, but also utilizes the extracellular polysaccharide produced by thalli to replace stabilizer, thus solving the separating problem of yogurt whey. The technology has simple fermentation process in producing the functional yoghurt, low fermentation cycle and lower cost, so the technology is suitable for industrialized production in large scale.

The invention discloses a Chinese medicinal composition for treating hyperlipidemia, which relates to a Chinese medicinal composition. The Chinese medicinal composition solves the common problems of more ingredients and unreliable quality caused by complicated manufacturing process in the conventional traditional Chinese medicine for reducing blood fat. The Chinese medicinal composition is prepared from tuber fleeceflower root, hawthorn, wild chrysanthemum, cassia seed, liquoric root, Chinese wolfberry, Chinese yam, oriental waterplantain rhizome, twotooth achyranthes root and red sage root. The Chinese medicinal composition for treating the hyperlipidemia is prepared by mixing traditional Chinese medicines based on traditional Chinese medicine theory; and compared with the conventional Chinese medicinal preparation for treating the hyperlipidemia, the Chinese medicinal composition has fewer traditional Chinese medicine ingredients, is scientific in mixing and prepared from widely available raw materials, does not contain excipients, is not complicatedly manufactured, can be directly taken when crushed and then prepared into capsules, is low in cost, reliable in quality and more suitable for promotion and use, and has no toxic or side effect.

The invention discloses a preparation method of crosslinked low density polyethylene (LDPE), which comprises the following step: under the condition of a free-radical initiator, carrying out crosslinking reaction on octafunctional cage-type oligomer silsesquioxane and LDPE to obtain the crosslinked LDPE. The crosslinked low density polyethylene is prepared from the following raw materials in percentage by mass: 98.5-99.6% of LDPE, 0.2-1% of octafunctional cage-type oligomer silsesquioxane and 0.2-0.5% of initiator. The functional group of the octafunctional cage-type oligomer silsesquioxane contains vinyl group. The invention also discloses a crosslinked LDPE prepared by the method and application thereof. By using the octafunctional cage-type oligomer silsesquioxane as the crosslinking agent, the peroxide crosslinking agent content in the traditional method is effectively lowered, thereby reducing the pores generated by chain-breaking reaction and peroxide decomposition. The prepared crosslinked LDPE has excellent mechanical properties and dielectric properties, and can satisfy the performance requirements for high-voltage cable materials.

The invention provides an epoxy group end-capped polysulfide polymer as shown in a general formula (I), a preparation method thereof and application of the epoxy group end-capped polysulfide polymer as an epoxy resin adhesive toughening agent. The invention also provides an epoxy resin adhesive which contains the epoxy group end-capped polysulfide polymer. The epoxy group end-capped polysulfide polymer provided by the invention contains an epoxy group end group and a polysulfide bond, is capable of increasing the curing speed of an adhesive and enhancing the properties, namely impact resistance, fracture toughness, oil resistance and the like, of a cured material obtained after curing when used for the epoxy resin adhesive, and prevents the pungent smell brought by sulfhydryl. The epoxy resin adhesive provided by the invention has the advantages of no special smell in preparation and usage processes after the adhesive is cured, good product properties, no pollution on the environment and suitability for large-scale industrialized production.

The invention provides a coprophilous fungus composition. According to the invention, fresh night soil of adult health pig is taken as a manure source, a coprophilous fungus final suspension is prepared by three-time centrifugation under specific low-temperature condition, a high molecular weight compound protective agent skimmed milk powder and a low molecular weight compound protective agent (glycerin, lactose, galactose, cane sugar, glucose, maltodextrin, sorbitol, adonitol and trehalose) are added, the coprophilous fungus composition is produced, which contains abundant Bacillus spp, lactic acid bacteria, lactobacillus, bifidobacteria, and streptococcus thermophilus, live bacteria number is kept at 108 CFU/g and more, the coprophilous fungus composition is used for preventing and treating diarrhoea of pigling at a lactation period, the prevention and treatment effects are obvious, the coprophilous fungus composition has more obvious effect for preventing and treating diarrhoea of pigling with 0-14 days (21-28 days early-stage weaning method) and 0-21 days (35 days weaning method). The preparation method of the coprophilous fungus composition is simple, the product shelf-life is long, the defect that the current coprophilous fungus transplant requires real-time preparation in the prior art, and the coprophilous fungus composition is suitable for industrial production.

The present disclosure provides low water dentifrice compositions comprising an effective amount of a zinc ion source, a tin ion source, a polyphosphate and an acid. The acid lowers the pH of the composition to enable stabilization of the metal ions and extend shelf-life of the composition.

The invention relates to an in-tank antiseptic antimildew agent composition integrated with a dry film for paint. The composition is prepared from a water-based paint in-tank antiseptic bactericide, a dry film antimildew agent, a solvent, an aid, a stabilizing agent and water. The in-tank antiseptic antimildew agent composition integrated with a dry film for paint has the advantages of reasonable formula, advanced process, good corrosion and mildew prevention effects, good stability, and the like. When the in-tank antiseptic antimildew agent composition integrated with a dry film for paint is used for paint, salt cluster phenomena can be avoided, an in-tank antiseptic effect can pass a microorganism challenge test, and the dry film mildew-growing grade is a zero grade.

The invention belongs to the technical field of petrochemical industry and relates to a preparation method of high-property organic bentonite for an oil-based drilling liquid. The preparation method comprises the following steps: dissolving 50-70 parts of sodium-based bentonite dry material in 600-900 parts of deionized water so as to form a suspension system a; mixing and dissolving 15-30 parts of quaternary ammonium salt organic modifier in 100-300 parts of solvent so as to form a homogenous system b; dissolving 10-15 parts of intercalation agent in 100-150 parts of solvent so as to form a homogenous system c; adding a solution b in the suspension system a, and reacting for 1-2 hours at the temperature of 70-90 DGE C so as to form a homogenous system d; adding a solution c in the suspension system d, and reacting for 1-2 hours at the temperature of 70-90 DGE C; and cooling a product to room temperature, washing off redundant ions in the product, filtering, and finally, drying a solid product in the vacuum environment at the temperature of 60-80 DEG C, smashing and screening so as to obtain the product high-property organic bentonite. By using the method provided by the invention, the property of the organic bentonite can be greatly improved, and the high-quality organic bentonite is prepared, thereby being beneficial to improvement of rheological behavior and debris carryingcapability of a drilling liquid.

The invention discloses a branched waterborne epoxy curing agent and a preparation method thereof: monoepoxy compound is firstly used for carrying out the end-blocking reaction of one end of aliphatic polyamine or aromatic polyamine or the aliphatic polyamine or the aromatic polyamine which undergoes the chain extension by polyether alcohol diglycidyl ether or polyether epoxy resin, and primary amine hydrogen at the other end of the polyamine is simultaneously maintained. Then, novolac epoxy resin or novolac epoxy resin solution is dipped in the solution of the intermediate product of the reaction for carrying out the branching reaction; after that, distilled water solution of monoatomic organic acid is dripped in adduct after the branching for carrying out the salt forming dispersion reaction; and the branched waterborne epoxy curing agent is finally prepared. When in use of the branched waterborne epoxy curing agent of the invention and waterborne epoxy resin component, the branched waterborne epoxy curing agent has the advantages of low viscosity and long application period; and the cured product can overcome the shortcoming of brittle performance of the ordinary epoxy resin material on the premise of keeping good heat resistance.