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71results about How to "Eliminate foam" patented technology

System for reconstitution of a powdered drug

A mixing system (1) adapted to allow first contents of a first container (2) and second contents of a second container (3) to mix to form a material. The mixed material is retrieved to a syringe (20) without being foamed. The mixing system (1) comprises a transfer unit (5) which is adapted to receive the first container (2) at a first port (11), the second container (3) at a second port (12) and the syringe (20) at a third port (13). The transfer unit (5) further houses a number of fluid pathways (14, 15, 16) interconnecting the three ports (11, 12, 13) as well as a number of flow control members (17, 18, 19, 22) for controlling fluid flow between the containers (2, 3) and the syringe (20). At least one of the flow control members (17, 18, 19, 22) allows a user to switch between two states of fluid flow, one in which fluid flow is enabled between the first port (11) and the third port (13) as well as between the third port (13) and the second port (12), and one in which fluid flow is enabled between the second port (12) and the third port (13). The invention also relates to a transfer unit comprising first and second ports for receiving first and second containers, respectively, a third port for coupling to a syringe, a number of fluid pathways interconnecting the ports, at least one flow control member which allows a user to switch between two states of fluid flow, and a locking means to ensure that the at least one flow control member can only be manipulated when a syringe is coupled to the third port.
Owner:NOVO NORDISK AS

Producing method forming and model hot enlarge fluorine plastic tube

The invention relates to a preparation method and a molding mold of thermal flared end fluoroplastic pipe, which is that a flared end fluoroplastic pip is clamped in a mounting hole of a flared end cavity die with a trumpet flared end and rotates with a chuck of a lathe spindle; a male die expander with a heater and temperature control device is used for heating the head the flared end to flaring temperature and the head the flared end is fed through a lathe tail spindle to ensure that the fluoroplastic pipe is intenerated in rotating and tightly joined and matched with trumpet flared end of the flared end cavity die and cooled to form mold. The heater is fixedly connected on a the male die expander and electrically connected with the temperature control device controlled the temperature of the flared end; the flared end cavity die clamped in a rotator comprises two symmetrical clutch semicylinders is positioned on the same central line with the flared end head of flared end cavity die. The utility model takes advantage of the cold flow property of fluoroplastic to solve the defects that stress centralizes and leaves at the flared end, material is easily decomposed and the flared end is easily cracked. The invention ensures that the wall thickness of expanded trumpet flared end is more uniform and the surface of the flared end is smoother and avoids the occurrences of crinkle, forting and rippling.
Owner:CHENGDU AIRCRAFT INDUSTRY GROUP

Preparation method of blocked isocyanate used for improving film forming performance of cathode electrophoresis coating

The invention discloses a preparation method of blocked isocyanate used for improving film forming performance of a cathode electrophoresis coating. The method comprises the following steps: (1) preparing an isocyanate tripolymer by using an organic compound as a catalyst under protection of a nitrogen gas; (2) performing chain extension by a polyhydroxy monomer to prepare an isocyanate-terminatedpolyisocyanate prepolymer, and blocking the prepolymer by using a composite blocking agent to prepare a branched polyisocyanate cross-linking agent; and (3) in the branching system, adding diisocyanate, performing chain extension by a polyester polyol to prepare an isocyanate-terminated diisocyanate prepolymer, performing hydrophilic modification on the isocyanate-terminated diisocyanate prepolymer by an alkynol surfactant, and blocking the prepolymer by using a composite blocking agent to obtain the blocked polyisocyanate cross-linking agent. The preparation method for the blocked isocyanatedisclosed by the invention is simple, the reaction process is easy to control, the blocked isocyanate has low deblocking temperature as a curing agent, and the prepared electrophoresis coating film has low heating loss, good thermal fluidity, high flatness, a high crosslinking density, and excellent corrosion resistance.
Owner:HUNAN UNIV +1

Water-soluble plant essential oil agricultural synergistic auxiliary agent and preparation method thereof

The invention discloses a water-soluble plant essential oil agricultural synergistic auxiliary agent. The water-soluble plant essential oil agricultural synergistic auxiliary agent is prepared from the following components in parts by mass: 20 parts of sweet orange essential oil, 70 parts of an emulsifier and 10 parts of a surfactant; all raw materials are mutually matched and can be dissolved inwater, so that the water-soluble plant essential oil agricultural synergistic auxiliary agent can be applied to a pesticide formula system, the acting effect of pesticide can be improved, the dosage of the pesticide is reduced and a condition that the pesticide resistance of harmful living organisms is continuously enhanced is avoided; furthermore, the auxiliary agent can be matched with chemicalfertilizer, the acting effect of the chemical fertilizer can be improved and the dosage of the chemical fertilizer is reduced so that bad influences on the environment are reduced. Meanwhile, the invention further discloses a preparation method of the water-soluble plant essential oil agricultural synergistic auxiliary agent; a preparation process is simple and the effect of each raw material canbe sufficiently expressed; the prepared auxiliary agent can express an excellent synergistic effect in a pesticide system and a chemical fertilizer system.
Owner:李灿琼

Power cable protection assembly

The invention provides a power cable protection assembly, and belongs to the technical field of a cable. The power cable protection assembly comprises a cable body, a protection sleeve and a supporting mechanism; the cable body consists of an aluminum alloy conductive core, an insulating layer, an inside liner layer, a water-blocking layer, a metal sheath, an outer protection layer and a corrosionresistant layer from inside to outside in sequence; flexible arc-shaped convex strips are uniformly arranged on the inner surface of the protection sleeve at intervals in the longitudinal direction;the longitudinal sections of the flexible arc-shaped convex strips are waveform; through holes are formed, among the flexible arc-shaped convex strips, in the protection sleeve; a filtering net is arranged on the through holes; the supporting mechanism comprises a bottom plate and vertical plates arranged on the two sides of the bottom plate; a first groove is formed in the bottom plate; a rotaryshaft is arranged between the vertical plates in an interval manner; the rotary shaft is partially arranged in the first groove and is in smooth contact with the inner surface of the first groove; andthe top parts of the vertical plates are sealed through a cover plate. The comprehensive performance of the power cable protection assembly is improved and the cable construction difficulty can be lowered, so that the cable can be protected from natural damage or man-made sabotage.
Owner:STATE GRID HENAN ELECTRIC ZHOUKOU POWER SUPPLY +1

Water-based specially-misty and specially-black surface treating agent for synthetic leather and preparing method thereof

The invention discloses a water-based specially-misty and specially-black surface treating agent for synthetic leather and a preparing method thereof. The surface treating agent is prepared from 45wt% of water-based polyurethane, 40wt% of deionized water, 2wt% to 4wt% of surfactant, 6wt% of silicon dioxide, 3wt% to 5wt% of calcium carbonate, 1wt% of mineral oil and 1wt% to 3wt% of acrylic acid oligomers. The preparing method includes the following steps: 1, the 45wt% of water-based polyurethane is placed into a stirring kettle, the 40wt% of deionized water, the 2wt% to 4wt% of surfactant, the 6wt% of silicon dioxide and the 3wt% to 5wt% of calcium carbonate are sequentially added during low-speed stirring; 2, high-speed stirring is carried out for 20 minutes, and then the 1wt% of mineral oil and the 1wt% to 3wt% of acrylic acid oligomers are sequentially added. According to the surface treating agent and the preparing method, as the water is used as solvents, the cleaner aim and the more environmentally friendly aim are achieved in the production process and the use process, the synthetic leather treated with the surface treating agent is good in color developing performance, the down feeling and the misty degree of the bottoms of lines are quite high, and the high leather feeling is achieved.
Owner:刘春明

Veneer machining process capable of achieving high-efficiency cutting

The invention discloses a veneer machining process capable of achieving high-efficiency cutting, and relates to the related technical field of floor veneers. The veneer machining process comprises thefollowing step I of feed preparation; the step II of preparation of the veneers; the step III of softening of the veneers; the step IV of air drying; the step V of drying; the step VI of setting; thestep VII of cutting; and the step VIII of gluing of the veneers. According to the veneer machining process, through softening treatment to the veneers, the phenomenon of veneer bubble can be avoidedeffectively; through coverage of a breathable film on the surface of the veneers, liquid medicine can be volatilized slowly; impurities can be further prevented from falling on the surface of the veneers, and the bonding degree between the veneers and paint can be further improved; thus, the situation that the paint is cracked is avoided; through arrangement of a dust-proof case on a supporting pier, the situation that sawdust flies during cutting of the veneers and consequently human bodies are injured can be avoided; and through cooperative application of a synchronous motor and a reciprocating screw rod, a movable block and a movable platform can be driven to move horizontally.
Owner:湖州万达塑制品有限公司

Method for reclaiming saponifying abietyl from industrial waste water and device thereof

The invention provides a way for recovering the saponified rosin in industrial sewage, which is characterized in that first the anti-dyeing wax on wax-printed figured cloth is withdrawn by caustic soda, and a lot of saponified rosin is left in the sewage; the sewage containing a lot of saponified rosin is collected and stored, and conveyed into a neutralizing and separating device; the acid amount necessary for the neutralizing reaction is adjusted by monitoring the pH value of the sewage from wax printing by a pH meter; meanwhile, the sewage and the acid are mixed evenly by a mixer; the sewage from wax printing is heated by a heater, and the suspended rosin particles are separated to the max. extent, then the suspended rosin particles are sent again to a hi-temperature furnace for smelting, the foreign matter and water are removed by filtering; one or a plurality of hi-temperature smeltings can be done, till the rosin is purified and solved and recovered. The invention is of simple process, easy to operate, of good efficiency and low cost. The invention saves natural resource, protects the ecologic environment, and facilitates the emission of waste near to null. The invention greatly improves the utilization of natural resource, is an ideal way and equipment for recovering saponified rosin in industrial sewage.
Owner:QINGDAO PHOENIX PRINTING & DYEING +1

Bi-component hyperbranched polyester resin high-solid-content high-gloss varnish for urban rail and bullet train bodies and preparation method thereof

The invention relates to a bi-component hyperbranched polyester resin high-solid-content high-gloss varnish for urban rail and bullet train bodies, the bi-component hyperbranched polyester resin high-solid-content high-gloss varnish comprises a main coating and a curing agent, and is characterized in that the main coating consists of the following components in parts by weight: 40-65 parts of high-solid-content resin, 15-35 parts of hyperbranched polyester resin, 0.2-1.0 part of a defoaming agent, 3-6 parts of a mixed auxiliary agent, 0.2-1.0 part of a leveling agent, 0.03-0.08 part of a catalyst and 15-20 parts of a mixed solvent; the curing agent is prepared from 75 to 100 parts of poly-1, 6-hexamethylene diisocyanate and 0 to 25 parts of a mixed solvent; wherein the weight ratio of themain body coating to the curing agent is 100:(50-70). The invention further provides a preparation method of the bi-component hyperbranched polyester resin high-solid-content high-gloss varnish for the urban rail and the bullet train bodies. The varnish has the characteristics of low VOC(volatile organic compound)content and good environmental protection performance, various indexes such as glossiness, weather resistance, corrosion resistance and water resistance of the varnish are obviously superior to those of the same type of water-based paint, and the varnish has excellent protection effect and high decoration on the outer surfaces of urban rails and bullet trains by mixing and crosslinking the main paint and the curing agent to form a film.
Owner:株洲市九华新材料涂装实业有限公司
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