36results about How to "Reasonable viscosity" patented technology

An abrasing liquid for abrasing the back of magnetic head for hard disc contains proportionally mineral oil containing C11-C13 alkane, oiling agent, superfine monocrystal diamond powder, antioxidizing anticorrosion agent, non-ionic surfactant, defoaming agent, and antistatic agent.

The invention discloses a warp-knitting dacron short pile fabric and a weaving method thereof, and belongs to the technical field of warp-kitting fabric weaving. 50-75D of dacron FDY and dacron DTY composite filaments are adopted as pile yarn, 50D/24F of polyester silk FDY or polyester silk DTY is adopted as bottom yarn, a two-comb or three-comb Tricot warp knitting machine conducts weaving to obtain gray fabric, then the procedures of pre-shaping, fuzzing process implementation, dyeing, drying, hot trimming and burnt-out are carried out, and after dehydration and drying for shaping are conducted, checking and packaging are carried out. By means of a chemical treatment method for dacron fibers, the effect of forming a three-dimensional pattern diversified in color and different in shape onthe fuzzing surface of the fabric is achieved, the gram weight of the fabric is low, and the fabric has better heat preservation performance and higher comfort degree.

Foams suitable for such uses as landfill coverage, frost protection, volatile emission control, gas control in mining, are composed of a hydrolyzable protein and a pre-gelatinized cationic modified starch along with other ingredients. The foam concentrate can be made at ambient temperature, is stable over time, can be easily tailored to achieve a desired foam stiffness and drain time characteristic over wide ranges, and can be easily diluted at ambient temperature to produce a foamable composition.

The invention belongs to the field of preparations and relates to a timolol maleate pharmaceutical composition and a preparation method thereof. The timolol maleate pharmaceutical composition contains timolol maleate, Carbopol, triethanolamine, propylene glycol, ethylparaben and water. The pharmaceutical composition has the advantages of good biocompatibility, easiness in coating, no greasiness and the like, and the use compliance of a patient is greatly improved; the timolol maleate pharmaceutical composition can directly act on a focus of infection, and the local drug concentration is increased, so that the drug effect is furthest exerted, and the untoward effect of the whole body caused due to oral medication or intravenous medication is avoided; and the pharmaceutical composition is suitable for industrial large-scale production, is used for treating hemangioma and is particularly suitable for treating superficial type infantile hemangioma.

The present invention relates to a process for the preparation of nateglinide, preferably in B-form, substantially free from the H-form, comprising three steps starting from D-phenylalanine methyl ester or a salt thereof.

The invention relates to a magnetic liquid sealing device capable of microwave heating, belonging to the field of mechanical engineering magnetic liquid sealing. A first bearing (3) which constitutes the sealing device, a first pole shoe (5) with a first rubber sealing ring, a permanent magnet (6), a second pole shoe (7) with a second rubber sealing ring and a second bearing (9) are sequentially installed on a shaft shoulder (14) of a transmission shaft, and magnetic liquids are poured in, thus a magnetic liquid sealing assembly is formed by the connection, and is installed on a step (15) of the inner hole of a metal sleeve (1); and an end cover (11) is fixed on the metal sleeve (1) through the threaded connection of a screw (13) and the metal sleeve (1). The transmission shaft (12) is made of a carbon fiber/ epoxy resin composite material, a boron fiber/ epoxy resin composite material or a glass fiber/ epoxy resin composite material; and the problems that the increment in the moment of torsion of the transmission shaft and the safety performance reduction of the transmission shaft caused by the increment of magnetic liquid viscocity under low temperature are solved.

The invention provides modified asphalt and a preparation method thereof, and the modified asphalt comprises the following components in parts by weight: 125-150 parts of matrix asphalt, 15-50 parts of rubber powder, 5-10 parts of furfural extract oil, 5-15 parts of epoxy resin, 5-10 parts of a diluent, 3-8 parts of a curing agent and 6-12 parts of a stabilizer. Effective combination of the rubber powder, the furfural extract oil, the epoxy resin, the diluent and the curing agent is achieved, and the prepared modified asphalt is not prone to layering, has good compactness and flatness, is excellent in pavement performance, can be directly used for road paving and is suitable for industrial production.

The present invention relates to a high-bandwidth bending insensitive multimode optical fiber. The high-bandwidth bending insensitive multimode optical fiber comprises a core layer and claddings surrounding the core layer. The refractive index cross section of the core layer is in the shape of a parabola. The high-bandwidth bending insensitive multimode optical fiber is characterized in that the claddings include an inner cladding, a first recessed cladding, a second recessed cladding and an outer cladding which are distributed sequentially from inside to outside; the unilateral radial width (R2-R1) of the inner cladding ranges from 1 to 3 microns, and the relative refractive index difference delta 2 of the inner cladding ranges from -0.2% to 0.05%; the unilateral radial width (R3-R2) of the first recessed cladding ranges from 3 to 8 microns, and the relative refractive index difference delta 3 of the first recessed cladding ranges from -0.9% to 0.3%; the unilateral radial width (R4-R3) of the second recessed cladding ranges from 6 to 30 microns, and R4 is smaller than or equal to 58 microns, and the relative refractive index difference delta 4 of the second recessed cladding ranges from -0.15% to 0.01%; and the radius R5 of the outer cladding ranges from 60 to 65 microns, and the relative refractive index difference delta 5 of the outer cladding ranges from -0.15% to 0.15%. The optical fiber of the invention has the advantages of reasonable material composition and structural design, convenient process control, improved and reduced inner stress distribution, enhanced bending resistance and increased bandwidth.

The present invention provides a mupirocin ointment and a preparation method thereof. The mupirocin ointment is composed of the following components in percentages by weight: 70-85% of polyethylene glycol-400, 10-28% of polyethylene glycol-4000 and 1-4% of mupirocin. Compared with the prior art, the mupirocin ointment has the following beneficial effects: (1) polyethylene glycol-4000 is used for replacing polyethylene glycol-3350, the medical-grade polyethylene glycol-4000 is easier to obtain, and cost of preparation raw materials is reduced; and (2) the mupirocin ointment is low in impurity content and has a release rate superior to that of products on the market.

A falling-film evaporator and an organic Rankine cycle power generating system using the same. The invention discloses the falling-film evaporator and the organic Rankine cycle power generating system. The falling-film evaporator comprises a tubular body, wherein the tubular body is provided with a working medium inlet and a working medium outlet, a distributor and a heat exchange tube are arranged in the tubular body, an oil return device is arranged at the bottom of the tubular body and comprises a float oil catcher which can float in an oil-rich layer in the bottom of the tubular body, the float oil catcher is connected with a caught oil delivery tube, and the caught oil delivery tube is connected to the exterior of the tubular body. According to the falling-film evaporator and the organic Rankine cycle power generating system, disclosed by the invention, the oil return device is simple in structure and reliable in oil return.

The invention belongs to the field of lead acid battery technology, and concretely relates to a production system of lead acid battery PE separators. The production system is used for solving the six following problems: a secondary oiling system is used in order guarantee reasonable viscosity of a mixed material; a traditional coating method of a hydrophilic surfactant is changed; a system for prepressing, secondary pressing, and third pressing is used during pressing of a stiffener; a method for opposite pressing with adjustable spacing is employed, pressing distances can be adjusted according to custom demands, adjustment of rollers is not needed, and continuous production can be carried out for improving productivity; three drying systems are provided for a chemical reagent circulating apparatus. The production system has outstanding industrial practicality, and compared with traditional production systems, product quality and production efficiency are greatly improved. The production system is environmental friendly and can protect health of workers. The production system has especially outstanding progress.